Re: [osg-users] Tone mapping algorithms
Hello Josselin,
I know very few about tone mapping, but I'd like to ask you something. Could
your code allow to simulate the fact that the human eye also have a dynamic
color range? I mean I'd like (in the future) to render a scene as usual and
then select a color range (say luminance in [128;255] if the scene is bright)
and strech colors so that [0;127]=0 and [128;255]=[0;255]. The idea is that
when the scene goes darker, the darkest colors would seem to slowly appear
brighter and brighter, as if your iris were opening (and vice-versa).
Sukender
PVLE - Lightweight cross-platform game engine - http://pvle.sourceforge.net/
Le Thu, 20 Nov 2008 01:13:39 +0100, [EMAIL PROTECTED] a écrit:
Hi all,
Really no one for tone mapping ?
Ok, maybe I have to give more informations. So here is how I'm doing
until today (sorry the length of the mail, but there is a lot of
informations ;-). Please, if you're interested by the subject and if
you have any suggestion, give answer !
- I want to set up the Reinhard's tone mapping algorithm (in
Photographic Tone Reproduction for Digital Images, 2002). This is
the simplest tone mapping algorithm, it gives very nice results, and
is real-time computable.
0. To do that, I think (tell me if I'm wrong) that the best way is to
use OSG PPU.
1. The first thing that we have to do is to load an hdr image, we can
find some of them in the website of Debevec
(http://www.debevec.org/Research/HDR/ , take picture(s) in .hdr format).
To use this kind of image in OSG PPU, just change these lines in osgppu.cpp:
osg::Node* loadedModel = osgDB::readNodeFiles(arguments);
if (!loadedModel) loadedModel = createTeapot();
with these lines (be carreful with the path of the image):
osg::Image* image = osgDB::readImageFile(Data/Images/memorial.hdr);
osg::Geode* loadedModel = osg::createGeodeForImage(image);
With these new lines, we are now working with a HDR image in the HDR
pipeline defined by Art Tevs in hdrppu.h :-)
2. Using a glslDebugger like glslDevil, we can see that values in the
HDR image are not in candela/m² (bug in the hdr loader ?). Anyway,
it's not really important, we can just put a factor 1000 in the first
shader used in the hdr pipeline (Data/glsl/luminance_fp.glsl). So
replace this line :
gl_FragColor.xyz = vec3( texColor0.r * 0.2125 + texColor0.g * 0.7154 +
texColor0.b * 0.0721 );
with this line :
gl_FragColor.xyz = 1000.0 * vec3( texColor0.r * 0.2125 + texColor0.g *
0.7154 + texColor0.b * 0.0721 );
3. So now we are working with an hdr image in candela/m². With the
first shader, we have computed a black and white image (or intensity
image), because we have next to compute the mean of this intensity
image. Here difficulties are beginning for me...
The HDR Pipeline uses the InitInMipmapOut Unit, the goal is to create
a Mipmapped Texture with the shader
(Data/glsl/luminance_mipmap_fp.glsl).
On the level 0, we have the input texture.
On the level 1, we have the log of the input texture, with half
resolution of the input texture.
On the level 2, we have the mean of the level 1, with half resolution
of the level 1.
On the level 3, ...
On the level 8, we have the mean of the input image.
Problems I've seen are :
- data computed in the level 1 (log-values) are lost when we want use
them for the level 2 (we're using non log-values, we can see that with
glslDebugger)
- we can't pass the value of the level 8 to the next unit, so
fLuminance value is lost.
I've no answer to these problems, so if someone have... send me a mail ;-)
4. To ending, we just have to compute the tone mapping algorithm in
the shader of the hdr Unit: here is my code (sorry, comments are in
french ;-) to put in (Data/glsl/Reinhard sale/tonemap_hdr_2_fp.glsl):
--
// hdr texture containing the scene
uniform sampler2D hdrInput;
// Luminance input
uniform sampler2D lumInput;
/**
**/
void main(void)
{
vec3 RGB, XYZ;
vec4 texel;
float at, x, y;
// pour avoir des candela/m²
float factor = 1000.0;
mat3 xyz2rgb = mat3(3.240479, -1.537150, -0.498535,
-0.969256, 1.875992, 0.041556,
0.055648, -0.204043, 1.057311);
mat3 rgb2xyz = mat3(0.4125, 0.3576, 0.1804,
0.2127, 0.7152, 0.0722,
0.0193, 0.1192, 0.9502);
// coordonnées du pixel
vec2 inTex = gl_TexCoord[0].st;
// get adapted, normal and scaled luminance
// ie luminance d'adaptation
//float fLuminance = texture2D(lumInput, inTex, 100.0).w;
float fLuminance = 50.0;
// texture
texel = factor * texture2D(hdrInput,inTex);
//texel = texture2D(hdrInput,inTex);
// conversion en XYZ - début du tone mapping
XYZ = rgb2xyz * texel.rgb;
// calcul de x et y pour sauvegarder la couleur
Re: [osg-users] Texture Management BUMP
Hi Kim, Well, if you load a model with its textures, the function will simply return to you a pointer to an already existing model and/or texture (if cache is enabled). Then if all models of your scene share the same texture and/or vertex arrays, I guess (I'm not 100% sure though) this will do what you expect: texture and/or vertex array are only sent to video memory once. Also be sure to create COPIES of the vertex arrays, matrix transforms (and other things) if you plan to modify them. Else you would modify the cached shared ressource (this happened to me! I saw all my models being transformed the same way at the same time...). Anyway, caching is a good thing for performance and RAM usage if your models or textures are duplicated in the scene. Sukender PVLE - Lightweight cross-platform game engine - http://pvle.sourceforge.net/ Le Thu, 20 Nov 2008 08:36:31 +0100, Kim C Bale [EMAIL PROTECTED] a écrit: I've been pondering this Database pager. It only caches the image files into memory to prevent loading during runtime doesn't it? Those are then used to build textures on the card memory. Is there anything to deal with loading textures onto the graphics card, dishing out texture IDs rather than reloading the texture onto card memory? Kim. From: [EMAIL PROTECTED] on behalf of Sukender Sent: Wed 19/11/2008 15:53 To: OpenSceneGraph Users Subject: Re: [osg-users] Texture Management Hi Kim, You may just use the osgDB::Registry cache. That's automatic :) For instance, set the cache by writing: osgDB::ReaderWriter::Options* rwoptions = new osgDB::ReaderWriter::Options; rwoptions-setObjectCacheHint(osgDB::ReaderWriter::Options::CACHE_ALL); osgDB::Registry::instance()-setOptions(rwoptions); This will cache everything loaded with readNodeFile() or readImageFile(). For my use, I preload things in the cache by calling: osgDB::Registry::instance()-addEntryToObjectCache(path, osgDB::readNodeFile(path)); And I set the cache to never unload: osgDB::DatabasePager * pPager = viewer.getDatabasePager(); assert(pPager); osgDB::Registry::instance()-setDatabasePager(pPager); pPager-setExpiryDelay(DBL_MAX); pPager-setExpiryFrames(INT_MAX); Also, you could clear the cache by calling: osgDB::Registry::instance()-clearObjectCache(); Hope it will help. Sukender PVLE - Lightweight cross-platform game engine - http://pvle.sourceforge.net/ Le Wed, 19 Nov 2008 16:28:25 +0100, Kim C Bale [EMAIL PROTECTED] a écrit: I have a number of different models in OSG format that all use the same texture. What I want to avoid is having duplicate textures loaded onto the graphics card when I load these separate models. In previous programs I have achieved this using a Texture Manager that manages all texture loading i.e. loading the texture once when required and then dishing out the texture ID on subsequent requests. A fairly standard practice. Is there something similar already built into the OSG? The TextureAtlasBuilder in osgUtil sounds looks like it might do something similar but I'm not 100% sure, there is very little documentation on it. Thanks all. Kim. ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] CompositeViewer addView threading issue on Windows?
Hi JS, Robert, what driver version are you using? Any chance OpenGL version string: 2.1.1 NVIDIA 100.14.19 Intel Quad core, Kubuntu 7.10. On Thu, Nov 20, 2008 at 2:40 AM, Jean-Sébastien Guay [EMAIL PROTECTED] wrote: Also, any chance this has a connection with the buffered_value thread? Seems Robert mentioned that there was some array that was initialized to be of the same size as the number of graphics contexts at startup, and was resized in a non-threadsafe manner if graphics contexts were added at runtime, which is what's happening here... The OSG's buffer_arrays that manage the OpenGL contexts might not be being resized correctly, and this is something to look into. I think it's a long shot though, as corrupted buffer_arrays would lead to OpenGL crashes/problems rather than hangs - unless one context crashes and the rest hang waiting for that thread to join a barrier. Robert. ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
[osg-users] Normals and setScale
Hi, When I call setScale() on an pat. Its normals seem to be affected. I want to keep normalization of normals. How can I solve this problem? I will appreciate any hints. Thanks you Créez votre adresse électronique [EMAIL PROTECTED] 1 Go d'espace de stockage, anti-spam et anti-virus intégrés. ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] Normals and setScale
Hi, Just make a search on GL_NORMALIZE on this list and you'll get your answer. :) On Thu, Nov 20, 2008 at 10:00 AM, a.lagnier [EMAIL PROTECTED] wrote: Hi, When I call setScale() on an pat. Its normals seem to be affected. I want to keep normalization of normals. How can I solve this problem? I will appreciate any hints. Thanks you *Créez votre adresse http://www.laposte.net électronique [EMAIL PROTECTED] 1 Go d'espace de stockage, anti-spam et anti-virus intégrés.* ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org -- Serge Lages http://www.tharsis-software.com ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] Dual screen support on Linux using TwinView
Hi Michael, On Thu, Nov 20, 2008 at 12:09 AM, Michael [EMAIL PROTECTED] wrote: This fails on the second display because OSG can't connect to screen 0:1, because there is only 1 xscreen. Clearly I am doing this wrong, but I'm not sure of the correct way. If you have only only X screen then you'll only be able to open up a window on that one... so you'll need to use the screenNum set to 0 fro both contexts, or Something like this? 1. Create a single GraphicsContext on screen 0, with width=2048 (both displays) 2. Create my views, and somehow tell each one to only render on half of the context? If you a grabbing the whole of both displays I would create a single graphics context that goes across both physical displays. Otherwise you'll need to create two graphics contexts on the same X11 screenNum but with the second window starting at a xpos of 1024. Now what to do about the views depends upon you actual needs. Do you have two separate logical views of doing you have single view that is just made up of two cameras (like looking out of two adjacent real-world windows that share the same view). If you have only single view, then do the two halves of it but up against each other or do they overlap? Could you have a bash at explain what you are specifically trying to achieve as the advice to give is different for all the different cases. Robert. ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] Normals and setScale
If your initial normals are correctly normalized you may also use GL_RESCALE_NORMALS. This will rescale the normals instead of the more expensive normalization that is done when GL_NORMALIZE is enabled. -- Roland From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Serge Lages Sent: donderdag 20 november 2008 10:03 To: a.lagnier; OpenSceneGraph Users Subject: Re: [osg-users] Normals and setScale Hi, Just make a search on GL_NORMALIZE on this list and you'll get your answer. :) On Thu, Nov 20, 2008 at 10:00 AM, a.lagnier [EMAIL PROTECTED] wrote: Hi, When I call setScale() on an pat. Its normals seem to be affected. I want to keep normalization of normals. How can I solve this problem? I will appreciate any hints. Thanks you Créez votre adresse http://www.laposte.net électronique [EMAIL PROTECTED] 1 Go d'espace de stockage, anti-spam et anti-virus intégrés. ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org -- Serge Lages http://www.tharsis-software.com This e-mail and its contents are subject to the DISCLAIMER at http://www.tno.nl/disclaimer/email.html ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] setUnRefImageDataAfterApply - is there an alternative?
Hi J-S, UnRefImageDataAfterApply is off by default. But the Optimizer by default with switch it on. You can just call the Optimizer with the settings you require rather than patch it afterwards back to what it was originally... As for an alternative, well there is one, you can't have your cake and eat, you either get rid of the Image and lower memory consumption and loose the ability to apply to later contexts, or you keep the Imagery around in case you need it. If you wanted to really dig into this topic I guess you could replace the osg::Image by a ProxyImage class that allows the imagery to be reloaded if its needed later. Such a class doesn't exist right now, and it wouldn't be entirely straight forward to implement. Robert. On Thu, Nov 20, 2008 at 3:53 AM, Jean-Sébastien Guay [EMAIL PROTECTED] wrote: Hi all, As noted in other threads, I'm currently working on an app that adds views at runtime. As expected, this causes the views created after the viewer has started running to have no textures on the models, because of the osg::Texture::_unrefImageDataAfterApply default setting of true. Now, one solution would be to turn this off globally, for example by doing osgUtil::Optimizer::TextureVisitor tv( true, false, false, false, false, 1.0, 0); loadedModel-accept(tv); for every loaded model file. However, that will waste memory most of the time, since new views will only be added occasionally. A more efficient solution might be to reload the textures when a new view is ready to be rendered for the first time. However, as I understand it, an osg::Texture does not retain any information as to where its image data came from, so I don't see how I would do this. Has anyone thought of this, or tried to implement it? Is there already a mechanism for that in OSG which I'm just not aware of? Also, I've noticed the osg::Texture::_clientStorageHint, what does that do? Finally, on the subject of the osgUtil::Optimizer::TextureVisitor, it could have an option to change the _resizeNonPowerOfTwoHint, now that most recent video cards implement quite fast support for NPOT textures and some users might want to make use of it on existing models without modifying the models directly. I'll try to submit this soon. Thanks in advance, J-S -- __ Jean-Sebastien Guay[EMAIL PROTECTED] http://www.cm-labs.com/ http://whitestar02.webhop.org/ ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] Normals and setScale
GL_RESCALE_NORMALS is undefined in gl.h ... Message du 20/11/08 10:09 De : Smeenk, R.J.M. (Roland) A : OpenSceneGraph Users Copie à : Objet : Re: [osg-users] Normals and setScale If your initial normals are correctly normalized you may also use GL_RESCALE_NORMALS. This will rescale the normals instead of the more expensive normalization that is done when GL_NORMALIZE is enabled. -- Roland From:[EMAIL PROTECTED][mailto:[EMAIL PROTECTED] On Behalf Of SergeLages Sent: donderdag 20 november 2008 10:03 To:a.lagnier; OpenSceneGraph Users Subject: Re: [osg-users] Normals andsetScale Hi, Just make a search on GL_NORMALIZE on this list andyou'll get your answer. :) On Thu, Nov 20, 2008 at 10:00 AM, a.lagnier [EMAIL PROTECTED]wrote: Hi, When I call setScale() on an pat. Its normals seem to be affected. I want to keep normalization of normals. How can I solve this problem? I will appreciate any hints. Thanks you Créez votre adresse électronique [EMAIL PROTECTED] 1 Go d'espace de stockage, anti-spam et anti-virus intégrés. ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org -- Serge Lages http://www.tharsis-software.com This e-mail and its contents are subject to the DISCLAIMER at http://www.tno.nl/disclaimer/email.html [ (pas de nom de fichier) (0.2 Ko) ] Créez votre adresse électronique [EMAIL PROTECTED] 1 Go d'espace de stockage, anti-spam et anti-virus intégrés. ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] Texture Management BUMP
Hi Kim, On Thu, Nov 20, 2008 at 7:36 AM, Kim C Bale [EMAIL PROTECTED] wrote: I've been pondering this Database pager. It only caches the image files into memory to prevent loading during runtime doesn't it? Those are then used to build textures on the card memory. The DatabasePager doesn't cache any imagery or nodes itself. The Registry has a cache that you can enable but it's off by default. There is also now (in SVN/2.7.x) an osgDB::FileCache class that wraps up a file cache. Is there anything to deal with loading textures onto the graphics card, dishing out texture IDs rather than reloading the texture onto card memory? You can't just directly down data to the GPU, you have to load from disk into main memory then have the OSG download this imagery to the textures to OpenGL. This is all done for you, the OSG will handle texture object ruse and us texture subloading to keep everything efficient. Robert. ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] Normals and setScale
osg/Transform defines it if not available #ifndef GL_RESCALE_NORMAL #define GL_RESCALE_NORMAL 0x803A #endif -- Roland From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of a.lagnier Sent: donderdag 20 november 2008 10:18 To: OpenSceneGraph Users Subject: Re: [osg-users] Normals and setScale GL_RESCALE_NORMALS is undefined in gl.h ... Message du 20/11/08 10:09 De : Smeenk, R.J.M. (Roland) A : OpenSceneGraph Users Copie à : Objet : Re: [osg-users] Normals and setScale If your initial normals are correctly normalized you may also use GL_RESCALE_NORMALS. This will rescale the normals instead of the more expensive normalization that is done when GL_NORMALIZE is enabled. -- Roland From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Serge Lages Sent: donderdag 20 november 2008 10:03 To: a.lagnier; OpenSceneGraph Users Subject: Re: [osg-users] Normals and setScale Hi, Just make a search on GL_NORMALIZE on this list and you'll get your answer. :) On Thu, Nov 20, 2008 at 10:00 AM, a.lagnier [EMAIL PROTECTED] wrote: Hi, When I call setScale() on an pat. Its normals seem to be affected. I want to keep normalization of normals. How can I solve this problem? I will appreciate any hints. Thanks you Créez votre adresse http://www.laposte.net électronique [EMAIL PROTECTED] 1 Go d'espace de stockage, anti-spam et anti-virus intégrés. ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org -- Serge Lages http://www.tharsis-software.com This e-mail and its contents are subject to the DISCLAIMER at http://www.tno.nl/disclaimer/email.html [ (pas de nom de fichier) (0.2 Ko) ] Créez votre adresse http://www.laposte.net électronique [EMAIL PROTECTED] 1 Go d'espace de stockage, anti-spam et anti-virus intégrés. This e-mail and its contents are subject to the DISCLAIMER at http://www.tno.nl/disclaimer/email.html ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] GTK guru's please help!
Hi Jason and Jeremy, I've tried switching the order of the gtk_disable_setlocale(); and gtk_init(NULL, NULL); but it just hangs on gtk_init instead of gtk_disable_setlocale(). All my GTK calls and use of gecko is all done from a single back ground thread - this hasn't changed since moving the code from osgbrowser to the plugin. I will try out calling the gtk_init() from the main osgbrowser. Robert. ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] GTK guru's please help!
HI All, On Thu, Nov 20, 2008 at 9:42 AM, Robert Osfield [EMAIL PROTECTED] wrote: I will try out calling the gtk_init() from the main osgbrowser. This didn't work either, I still get the background thread hitting a pthread mutex deep inside gtk on my first call to gtk from the background thread. Next I'm going to move all the GTK calls into osgWidget and see if a conventional library rather than a plugin will be able to work properly with gtk... Robert. ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] Texture Management BUMP
Hi Sekunder, I've been digging around in the osgDB code and I'm pretty sure that the osgDB cache only stores the osg::Image file in memory rather than the osg::Texture. I noted that glBindTexture is only called within osg::Texture so that is where the texture is loaded onto the card. At the moment all I've set the cache to store are images, as model caching isn't needed. But I don't think the osgDB parses cached models for duplicate osg::Textures only duplicate osg::Images. Perhaps Robert could confirm? Kim. -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Sukender Sent: 20 November 2008 08:54 To: OpenSceneGraph Users Subject: Re: [osg-users] Texture Management BUMP Hi Kim, Well, if you load a model with its textures, the function will simply return to you a pointer to an already existing model and/or texture (if cache is enabled). Then if all models of your scene share the same texture and/or vertex arrays, I guess (I'm not 100% sure though) this will do what you expect: texture and/or vertex array are only sent to video memory once. Also be sure to create COPIES of the vertex arrays, matrix transforms (and other things) if you plan to modify them. Else you would modify the cached shared ressource (this happened to me! I saw all my models being transformed the same way at the same time...). Anyway, caching is a good thing for performance and RAM usage if your models or textures are duplicated in the scene. Sukender PVLE - Lightweight cross-platform game engine - http://pvle.sourceforge.net/ Le Thu, 20 Nov 2008 08:36:31 +0100, Kim C Bale [EMAIL PROTECTED] a écrit: I've been pondering this Database pager. It only caches the image files into memory to prevent loading during runtime doesn't it? Those are then used to build textures on the card memory. Is there anything to deal with loading textures onto the graphics card, dishing out texture IDs rather than reloading the texture onto card memory? Kim. From: [EMAIL PROTECTED] on behalf of Sukender Sent: Wed 19/11/2008 15:53 To: OpenSceneGraph Users Subject: Re: [osg-users] Texture Management Hi Kim, You may just use the osgDB::Registry cache. That's automatic :) For instance, set the cache by writing: osgDB::ReaderWriter::Options* rwoptions = new osgDB::ReaderWriter::Options; rwoptions-setObjectCacheHint(osgDB::ReaderWriter::Options::CACHE_ALL); osgDB::Registry::instance()-setOptions(rwoptions); This will cache everything loaded with readNodeFile() or readImageFile(). For my use, I preload things in the cache by calling: osgDB::Registry::instance()-addEntryToObjectCache(path, osgDB::readNodeFile(path)); And I set the cache to never unload: osgDB::DatabasePager * pPager = viewer.getDatabasePager(); assert(pPager); osgDB::Registry::instance()-setDatabasePager(pPager); pPager-setExpiryDelay(DBL_MAX); pPager-setExpiryFrames(INT_MAX); Also, you could clear the cache by calling: osgDB::Registry::instance()-clearObjectCache(); Hope it will help. Sukender PVLE - Lightweight cross-platform game engine - http://pvle.sourceforge.net/ Le Wed, 19 Nov 2008 16:28:25 +0100, Kim C Bale [EMAIL PROTECTED] a écrit: I have a number of different models in OSG format that all use the same texture. What I want to avoid is having duplicate textures loaded onto the graphics card when I load these separate models. In previous programs I have achieved this using a Texture Manager that manages all texture loading i.e. loading the texture once when required and then dishing out the texture ID on subsequent requests. A fairly standard practice. Is there something similar already built into the OSG? The TextureAtlasBuilder in osgUtil sounds looks like it might do something similar but I'm not 100% sure, there is very little documentation on it. Thanks all. Kim. ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org* To view the terms under which this email is distributed, please go to http://www.hull.ac.uk/legal/email_disclaimer.html *___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] Texture Management BUMP
Cheers for clearing that up. Kim. -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Robert Osfield Sent: 20 November 2008 09:18 To: OpenSceneGraph Users Subject: Re: [osg-users] Texture Management BUMP Hi Kim, On Thu, Nov 20, 2008 at 7:36 AM, Kim C Bale [EMAIL PROTECTED] wrote: I've been pondering this Database pager. It only caches the image files into memory to prevent loading during runtime doesn't it? Those are then used to build textures on the card memory. The DatabasePager doesn't cache any imagery or nodes itself. The Registry has a cache that you can enable but it's off by default. There is also now (in SVN/2.7.x) an osgDB::FileCache class that wraps up a file cache. Is there anything to deal with loading textures onto the graphics card, dishing out texture IDs rather than reloading the texture onto card memory? You can't just directly down data to the GPU, you have to load from disk into main memory then have the OSG download this imagery to the textures to OpenGL. This is all done for you, the OSG will handle texture object ruse and us texture subloading to keep everything efficient. Robert. ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.or g* To view the terms under which this email is distributed, please go to http://www.hull.ac.uk/legal/email_disclaimer.html *___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] StateSetSwitchNode suggestion.
Hi Robert, By default I would expect it to traverse all children. One variation I considered was to have a NodeMask + StateSet per Child, with this combination you'd be able to select different combinations for different traversal masks. If I set up the LayerNode to have one child for each StateSet I want to switch between, and give each of those children their own node mask. Then I can set up the cull-mask of my cameras so that they chose the correct StateSet. This will work fine. The LayerNode will be more flexible than the StateSetSwitchNode, but I think it will be a bit slower. Let's examine traverse performance of the LayerNode and the StateSetSwitchNode.In this example we assume that we want to switch between 5 different state-sets.I am now only looking at the usage method that the StateSetSwitchNode supports. LayerNode:Cull-traverse will first run the accept function of the LayerNode. It will then call traverse and call accept for each of the 5 children of the LayerNode. One of the 5 children will pass the mask check and call its traverse function. LayerNode will be slower the more StateSet's you want to switch between. Any traverse with node mask 0x will traverse each of the 5 children, and their children In my case, they share the same children, which can be a whole world. StateSetSwitchNode:=Cull-traverse will call the accept function of the StateSetSwitchNode. This function is modified and has one extra bitvise and operation, and one extra array lookup. It then call the traverse function of the node-pointer it read from the array.That sounds like almost 5 times faster than the LayerNode. StateSetSwitchNode will not run slower if we add more StateSet's to switch between. Any traverse with node mask 0x will traverse only one of the nodes in the array and that node's children. All nodes in the array share the same children, and in this solution they get traversed one time instead of 5. I feel that I need to state that the StateSetSwitchNode comes with a rule-set: - Only one of the state-sets shall be traversed during any traversal. - They shall all point to the same sub-tree (always).These rules are neccessary in order to make the cull-traverse as fast as possible. My conclusion after this e-mail is still that I want to implement the StateSetSwitchNode as an addition to the SwitchNode and a future version of the LayerNode.It would be very beneficial for me to integrate it to OSG and support it in the .ive and .osg file formats.I would be happy to contribute a good example of usage and the OSG implementation if you give a green light to OSG integration. Viggo _ Hold kontakten med Windows Live Messenger. http://clk.atdmt.com/GBL/go/msnnkdre001003gbl/direct/01/___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] StateSetSwitchNode suggestion.
Hi Viggo, The most general approach is the best, and the performance differences will almost certainly be negligible between your suggest SwitchStateSetNode and my suggest Layer node with nodemask. Feel free to implement both and test them against each other w.r.t cull traversal time and overall framerate. Robert. On Thu, Nov 20, 2008 at 10:17 AM, Viggo Løvli [EMAIL PROTECTED] wrote: Hi Robert, By default I would expect it to traverse all children. One variation I considered was to have a NodeMask + StateSet per Child, with this combination you'd be able to select different combinations for different traversal masks. If I set up the LayerNode to have one child for each StateSet I want to switch between, and give each of those children their own node mask. Then I can set up the cull-mask of my cameras so that they chose the correct StateSet. This will work fine. The LayerNode will be more flexible than the StateSetSwitchNode, but I think it will be a bit slower. Let's examine traverse performance of the LayerNode and the StateSetSwitchNode. In this example we assume that we want to switch between 5 different state-sets. I am now only looking at the usage method that the StateSetSwitchNode supports. LayerNode: Cull-traverse will first run the accept function of the LayerNode. It will then call traverse and call accept for each of the 5 children of the LayerNode. One of the 5 children will pass the mask check and call its traverse function. LayerNode will be slower the more StateSet's you want to switch between. Any traverse with node mask 0x will traverse each of the 5 children, and their children In my case, they share the same children, which can be a whole world. StateSetSwitchNode: = Cull-traverse will call the accept function of the StateSetSwitchNode. This function is modified and has one extra bitvise and operation, and one extra array lookup. It then call the traverse function of the node-pointer it read from the array. That sounds like almost 5 times faster than the LayerNode. StateSetSwitchNode will not run slower if we add more StateSet's to switch between. Any traverse with node mask 0x will traverse only one of the nodes in the array and that node's children. All nodes in the array share the same children, and in this solution they get traversed one time instead of 5. I feel that I need to state that the StateSetSwitchNode comes with a rule-set: - Only one of the state-sets shall be traversed during any traversal. - They shall all point to the same sub-tree (always). These rules are neccessary in order to make the cull-traverse as fast as possible. My conclusion after this e-mail is still that I want to implement the StateSetSwitchNode as an addition to the SwitchNode and a future version of the LayerNode. It would be very beneficial for me to integrate it to OSG and support it in the .ive and .osg file formats. I would be happy to contribute a good example of usage and the OSG implementation if you give a green light to OSG integration. Viggo Få Hotmail du også. Windows Live Hotmail med 5000 MB gratis lagringsplass. ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] GTK guru's please help!
Hi All, On Thu, Nov 20, 2008 at 9:53 AM, Robert Osfield [EMAIL PROTECTED] wrote: Next I'm going to move all the GTK calls into osgWidget and see if a conventional library rather than a plugin will be able to work properly with gtk... This didn't work either. So I tried a different tack, I moved the init of the browser manager to the first time that a browser is requested rather than in the ReaderWriterUBrowser constructor. This little change fixed the problems with gtk initializing and the browser now comes up in the OSG window just fine. ;-) I can only imagine that UBrowser/GTK/LibXUL/xul-runner has some globals that automatically construct themselves and the order of their automatic construction was such that that my init code in my constructor introduced an order of initialization that wasn't safe. Lots of arm waving here... as very little actually changed code wise, it was just a timing change for the init... Now things are working with the new gecko plugin I'll check it in, and others can test it out. Robert. ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] GTK guru's please help!
On Thu, Nov 20, 2008 at 11:06 AM, Robert Osfield [EMAIL PROTECTED] wrote: Now things are working with the new gecko plugin I'll check it in, and others can test it out. The new plugin that wraps up the gecko based browser implementation is now checked into svn. The osgWidget::Browser API still very crude/experimental, as is the plugin, but it's a good first step towards make the embedded browser functionality available to all OSG apps. Robert. ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
[osg-users] question about passive 3D stereo using polarized projectors and openscenegraph
Hi everybody!! in my lab they want to re-use an old system composed by a Cyviz Stereo 3D Converter (xpo.2). It basically consists on a splitter which needs a frame-sequencial stereo source, and the output is two videos for two projectors (so passive stereo using polarized projectors glasses). I am quite new with this 3D stuff... I think I should use OSG_STEREO_MODE with the QUAD_BUFFER option. My question is more about the graphics card required for that, do we need any special card for that? I have a laptop with a NVIDIA geforce 8700GT, do you think it is possible to use it like that? many thanks in advance! regards, Jaime. _ Discover the new Windows Vista http://search.msn.com/results.aspx?q=windows+vistamkt=en-USform=QBRE___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] question about passive 3D stereo using polarized projectors and openscenegraph
Hi Jaime, The way I would do passive stereo with two projectors is to attach the projectors directly to the two outputs from the graphics card, and then use horizontal split stereo to drive them. The OSG supports this set up out of the box. Using this setup will avoid any need to use quad buffer stereo and the limits on hardware/drivers that it imposses, and it also the best way to drive such a system quality/performance wise. Robert. On Thu, Nov 20, 2008 at 12:55 PM, lucas Grijander [EMAIL PROTECTED] wrote: Hi everybody!! in my lab they want to re-use an old system composed by a Cyviz Stereo 3D Converter (xpo.2). It basically consists on a splitter which needs a frame-sequencial stereo source, and the output is two videos for two projectors (so passive stereo using polarized projectors glasses). I am quite new with this 3D stuff... I think I should use OSG_STEREO_MODE with the QUAD_BUFFER option. My question is more about the graphics card required for that, do we need any special card for that? I have a laptop with a NVIDIA geforce 8700GT, do you think it is possible to use it like that? many thanks in advance! regards, Jaime. Discover the new Windows Vista Learn more! ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] osg_gen
Hi. Could anybody tell me which folder must pointed osg_gen dependence?? 2008/11/16 Robert Osfield [EMAIL PROTECTED] HI Adaya, Do you do an out of source build on the OSG? Have you installed the OSG? How did you tell VPB about the placement of the OSG? In theory it should pick up on the include directories automatically, but perhaps you usage combination has not been handled by the VirtualPlanetBuilder/CMakeModules/FindOSG.cmake script. Robert. On Sun, Nov 16, 2008 at 1:53 PM, Adaya Lorenzo [EMAIL PROTECTED] wrote: Hello. I have tried to compile Virtual Planet Builder v0.9.9 using OSG 2.7.4 and I have a dependence 'osg_gen' but I do not find it in any place. Specifically when I use cmake with vpb, it searches osg_gen_include_dir but I do not find the file. Thanks for answering -- Adaya Lorenzo ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org -- Adaya Lorenzo Leon ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] question about passive 3D stereo using polarized projectors and openscenegraph
Hi Robert, the problem is that the video card I have has only one DVI output and an S-Video output, so I think they cannot work as two different outputs. Jaime. Date: Thu, 20 Nov 2008 13:02:28 + From: [EMAIL PROTECTED] To: osg-users@lists.openscenegraph.org Subject: Re: [osg-users] question about passive 3D stereo using polarized projectors and openscenegraph Hi Jaime, The way I would do passive stereo with two projectors is to attach the projectors directly to the two outputs from the graphics card, and then use horizontal split stereo to drive them. The OSG supports this set up out of the box. Using this setup will avoid any need to use quad buffer stereo and the limits on hardware/drivers that it imposses, and it also the best way to drive such a system quality/performance wise. Robert. On Thu, Nov 20, 2008 at 12:55 PM, lucas Grijander [EMAIL PROTECTED] wrote: Hi everybody!! in my lab they want to re-use an old system composed by a Cyviz Stereo 3D Converter (xpo.2). It basically consists on a splitter which needs a frame-sequencial stereo source, and the output is two videos for two projectors (so passive stereo using polarized projectors glasses). I am quite new with this 3D stuff... I think I should use OSG_STEREO_MODE with the QUAD_BUFFER option. My question is more about the graphics card required for that, do we need any special card for that? I have a laptop with a NVIDIA geforce 8700GT, do you think it is possible to use it like that? many thanks in advance! regards, Jaime. Discover the new Windows Vista Learn more! ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org _ Explore the seven wonders of the world http://search.msn.com/results.aspx?q=7+wonders+worldmkt=en-USform=QBRE___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] CompositeViewer addView threading issue on Windows?
Hi all, Thanks for testing again. I've had a few other reports for Linux and Windows, some can repro others can't, so I'm trying to get hardware details and driver versions to see if it could be dependent of these factors. Thanks for providing them. Robert suggested off-list that I post these stack traces, so here they are. The first one in particular (jeckle) seems to show the same problem I have been investigating. Thanks to Don Leich for testing on a few different machines (hardware, driver versions). I hope this info will be useful. J-S -- __ Jean-Sebastien Guay[EMAIL PROTECTED] http://www.cm-labs.com/ http://whitestar02.webhop.org/ jeckle Linux 2.6.5-7.97-smp x86_64 GNU/Linux OpenGL vendor string: NVIDIA Corporation OpenGL renderer string: Quadro FX 1100/AGP/SSE2 OpenGL version string: 1.5.2 NVIDIA 66.29 Added a view with 'a' and followed it each time with 'm' to change the threading model. The test hangs after 4th addView on the 'm' to change back to SingleThreaded. Traces cut-and-pasted from totalview... 1.1 (182952639424) T in pthread_cond_wait 1.10 (1092614496) T in pthread_cond_wait 1.11 (1094711648) T in pthread_cond_wait 1.12 (1096808800) T in pthread_cond_wait 1.13 (1098905952) T in pthread_cond_wait 1.14 (1101003104) T in pthread_cond_wait 1.15 (1103100256) T in pthread_cond_wait pthread_cond_wait, FP=7fbfffd5a0 pthread_cond_wait, FP=7fbfffd5b0 OpenThreads::Condition::wait, FP=7fbfffd610 OpenThreads::BlockCount::block, FP=7fbfffd660 osgViewer::ViewerBase::renderingTraversals, FP=7fbfffd870 osgViewer::ViewerBase::frame, FP=7fbfffd8a0 osgViewer::ViewerBase::run,FP=7fbfffd8d0 osgViewer::CompositeViewer::run, FP=7fbfffd920 main, FP=7fbfffdc60 __libc_start_main, FP=7fbfffdd30 _start,FP=7fbfffdd40 pthread_cond_wait, FP=411ff5b0 pthread_cond_wait, FP=411ff5c0 OpenThreads::Barrier::block, FP=411ff610 osg::BarrierOperation::operator (), FP=411ff630 osg::OperationThread::run, FP=411ff6e0 ...reads::ThreadPrivateActions::StartThread, FP=411ff7b0 start_thread,FP=411ff870 pthread_cond_wait, FP=413ff5b0 pthread_cond_wait, FP=413ff5c0 OpenThreads::Barrier::block, FP=413ff610 osg::BarrierOperation::operator (), FP=413ff630 osg::OperationThread::run, FP=413ff6e0 ...reads::ThreadPrivateActions::StartThread, FP=413ff7b0 start_thread,FP=413ff870 pthread_cond_wait, FP=415ff5b0 pthread_cond_wait, FP=415ff5c0 OpenThreads::Barrier::block, FP=415ff610 osg::BarrierOperation::operator (), FP=415ff630 osg::OperationThread::run, FP=415ff6e0 ...reads::ThreadPrivateActions::StartThread, FP=415ff7b0 start_thread,FP=415ff870 pthread_cond_wait, FP=417ff580 pthread_cond_wait, FP=417ff590 OpenThreads::Barrier::block, FP=417ff5e0 osg::BarrierOperation::operator (), FP=417ff600 osg::OperationThread::run, FP=417ff6b0 osg::GraphicsThread::run,FP=417ff6e0 ...reads::ThreadPrivateActions::StartThread, FP=417ff7b0 start_thread,FP=417ff870 pthread_cond_wait, FP=419ff1c0 pthread_cond_wait, FP=419ff1d0 OpenThreads::Condition::wait,FP=419ff230 OpenThreads::Block::block, FP=419ff280 ...wer::Renderer::TheadSafeQueue::takeFront, FP=419ff2e0 osgViewer::Renderer::draw, FP=419ff460 osgViewer::Renderer::operator (), FP=419ff480 osg::GraphicsContext::runOperations, FP=419ff5a0 osg::RunOperations::operator (), FP=419ff5c0 osg::GraphicsOperation::operator (), FP=419ff600 osg::OperationThread::run, FP=419ff6b0 osg::GraphicsThread::run,FP=419ff6e0 ...reads::ThreadPrivateActions::StartThread, FP=419ff7b0 start_thread,FP=419ff870 pthread_cond_wait, FP=41bff1c0 pthread_cond_wait, FP=41bff1d0 OpenThreads::Condition::wait,FP=41bff230 OpenThreads::Block::block, FP=41bff280 ...wer::Renderer::TheadSafeQueue::takeFront, FP=41bff2e0 osgViewer::Renderer::draw, FP=41bff460 osgViewer::Renderer::operator (), FP=41bff480 osg::GraphicsContext::runOperations, FP=41bff5a0 osg::RunOperations::operator (), FP=41bff5c0 osg::GraphicsOperation::operator (), FP=41bff600 osg::OperationThread::run, FP=41bff6b0 osg::GraphicsThread::run,FP=41bff6e0 ...reads::ThreadPrivateActions::StartThread, FP=41bff7b0 start_thread,FP=41bff870 cartman Linux 2.6.9-5.ELsmp i686 i386 GNU/Linux OpenGL vendor string: NVIDIA Corporation OpenGL renderer string: Quadro FX 3450/4000 SDI/PCI/SSE2 OpenGL version string: 2.0.0 NVIDIA 76.76 Alternating 'a' and 'm' we hang after maybe a dozen views are added.
Re: [osg-users] osg_gen
Hi Adaya, On Thu, Nov 20, 2008 at 1:10 PM, Adaya Lorenzo [EMAIL PROTECTED] wrote: Hi. Could anybody tell me which folder must pointed osg_gen dependence?? There isn't a osg_gen in VIRTUAL_PLANET_BUILDER. Do you mean OSG_GEN_INCLUDE_DIR? This is the path the include/osg/Config file that is automatically generated. If you do an out of source build then this generated file will be in its own include/osg/Config directory, until you install it. For simplicity just do in source builds, or just install the OSG. i.e. cd OpenSceneGraph ./configure make sudo make install cd ../ cd VirtualPlanetBuilder ./configure make sudo make install That is all that should be required. Robert. ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] question about passive 3D stereo using polarized projectors and openscenegraph
Hi Lucas, On Thu, Nov 20, 2008 at 1:55 PM, lucas Grijander [EMAIL PROTECTED] wrote: hehe, it's not an old card! it's a new laptop Dell XPS M1730 with a nvidia Geforce 8700 GT, I think it's normal that there is no two outputs... isn't it? Stereo and laptops aren't something that normally go together... If you are lucky the drivers will support quad buffer stereo, but there is good chance that they won't. Without this I'm out of ideas. Robert. ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] question about passive 3D stereo using polarized projectors and openscenegraph
only one projector? but how do you create the 3D effect? Jaime. Date: Thu, 20 Nov 2008 14:59:37 +0100 From: [EMAIL PROTECTED] To: osg-users@lists.openscenegraph.org Subject: Re: [osg-users] question about passive 3D stereo using polarized projectors and openscenegraph Can't you use OSG to render stereo pictures on the same output and use only one projector ? Osg_stereo example works like that if I remember well. I don't think two projector are needed. Vincent. 2008/11/20 lucas Grijander [EMAIL PROTECTED] hehe, it's not an old card! it's a new laptop Dell XPS M1730 with a nvidia Geforce 8700 GT, I think it's normal that there is no two outputs... isn't it? Jaime. Date: Thu, 20 Nov 2008 13:43:42 + From: [EMAIL PROTECTED] To: osg-users@lists.openscenegraph.org Subject: Re: [osg-users] question about passive 3D stereo using polarized projectors and openscenegraph Hi Lucas, On Thu, Nov 20, 2008 at 1:17 PM, lucas Grijander [EMAIL PROTECTED] wrote: the problem is that the video card I have has only one DVI output and an S-Video output, so I think they cannot work as two different outputs. Wow. What card is it? You could try the using quad buffer stereo. Or just rip out the card and stick in a standard modern card that will have two DVI output on it, it'll only cost a couple hundred dollars to get a decent new card. Robert. ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org Invite your mail contacts to join your friends list with Windows Live Spaces. It's easy! Try it! ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org _ Discover the new Windows Vista http://search.msn.com/results.aspx?q=windows+vistamkt=en-USform=QBRE___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] CompositeViewer addView threading issue on Windows?
Hi Robert, OpenGL version string: 2.1.1 NVIDIA 100.14.19 Intel Quad core, Kubuntu 7.10. Hmmm, seems older than what JP and Csaba reported? Or am I reading the numbers wrong? The OSG's buffer_arrays that manage the OpenGL contexts might not be being resized correctly, and this is something to look into. I think it's a long shot though, as corrupted buffer_arrays would lead to OpenGL crashes/problems rather than hangs - unless one context crashes and the rest hang waiting for that thread to join a barrier. Is this join a barrier done during makeCurrent? It's really a shame that you can't repro this issue... It would be so much simpler, I'm just not that familiar with this stuff... J-S -- __ Jean-Sebastien Guay[EMAIL PROTECTED] http://www.cm-labs.com/ http://whitestar02.webhop.org/ ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] question about passive 3D stereo using polarized projectors and openscenegraph
2008/11/20 lucas Grijander [EMAIL PROTECTED] only one projector? but how do you create the 3D effect? Jaime. With the filtered glasses. The passive stereo effect is just that : 2 picture with 2 colored components (red and blue basically) projeted on a wall/screen with the interval between the pictures equal to the distance between the eye (~6cm). The filtered glasses give each eye a different picture, and the brain have the 3D illusion, The active stereo need 2 synchronized projectors and synchronized glasses to have the 3D effect. This needs special equipment. Vincent -- Date: Thu, 20 Nov 2008 14:59:37 +0100 From: [EMAIL PROTECTED] To: osg-users@lists.openscenegraph.org Subject: Re: [osg-users] question about passive 3D stereo using polarized projectors and openscenegraph Can't you use OSG to render stereo pictures on the same output and use only one projector ? Osg_stereo example works like that if I remember well. I don't think two projector are needed. Vincent. 2008/11/20 lucas Grijander [EMAIL PROTECTED] hehe, it's not an old card! it's a new laptop Dell XPS M1730 with a nvidia Geforce 8700 GT, I think it's normal that there is no two outputs... isn't it? Jaime. Date: Thu, 20 Nov 2008 13:43:42 + From: [EMAIL PROTECTED] To: osg-users@lists.openscenegraph.org Subject: Re: [osg-users] question about passive 3D stereo using polarized projectors and openscenegraph Hi Lucas, On Thu, Nov 20, 2008 at 1:17 PM, lucas Grijander [EMAIL PROTECTED] wrote: the problem is that the video card I have has only one DVI output and an S-Video output, so I think they cannot work as two different outputs. Wow. What card is it? You could try the using quad buffer stereo. Or just rip out the card and stick in a standard modern card that will have two DVI output on it, it'll only cost a couple hundred dollars to get a decent new card. Robert. ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org -- Invite your mail contacts to join your friends list with Windows Live Spaces. It's easy! Try it!http://spaces.live.com/spacesapi.aspx?wx_action=createwx_url=/friends.aspxmkt=en-us ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org -- Discover the new Windows Vista Learn more!http://search.msn.com/results.aspx?q=windows+vistamkt=en-USform=QBRE ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] question about passive 3D stereo using polarized projectors and openscenegraph
you are right, but I have polarized glasses that go together with the polarized lenses of the projectors. I think we can have much better quality like that. Jaime. Date: Thu, 20 Nov 2008 15:12:13 +0100 From: [EMAIL PROTECTED] To: osg-users@lists.openscenegraph.org Subject: Re: [osg-users] question about passive 3D stereo using polarized projectors and openscenegraph 2008/11/20 lucas Grijander [EMAIL PROTECTED] only one projector? but how do you create the 3D effect? Jaime. With the filtered glasses. The passive stereo effect is just that : 2 picture with 2 colored components (red and blue basically) projeted on a wall/screen with the interval between the pictures equal to the distance between the eye (~6cm). The filtered glasses give each eye a different picture, and the brain have the 3D illusion, The active stereo need 2 synchronized projectors and synchronized glasses to have the 3D effect. This needs special equipment. Vincent Date: Thu, 20 Nov 2008 14:59:37 +0100 From: [EMAIL PROTECTED] To: osg-users@lists.openscenegraph.org Subject: Re: [osg-users] question about passive 3D stereo using polarized projectors and openscenegraph Can't you use OSG to render stereo pictures on the same output and use only one projector ? Osg_stereo example works like that if I remember well. I don't think two projector are needed. Vincent. 2008/11/20 lucas Grijander [EMAIL PROTECTED] hehe, it's not an old card! it's a new laptop Dell XPS M1730 with a nvidia Geforce 8700 GT, I think it's normal that there is no two outputs... isn't it? Jaime. Date: Thu, 20 Nov 2008 13:43:42 + From: [EMAIL PROTECTED] To: osg-users@lists.openscenegraph.org Subject: Re: [osg-users] question about passive 3D stereo using polarized projectors and openscenegraph Hi Lucas, On Thu, Nov 20, 2008 at 1:17 PM, lucas Grijander [EMAIL PROTECTED] wrote: the problem is that the video card I have has only one DVI output and an S-Video output, so I think they cannot work as two different outputs. Wow. What card is it? You could try the using quad buffer stereo. Or just rip out the card and stick in a standard modern card that will have two DVI output on it, it'll only cost a couple hundred dollars to get a decent new card. Robert. ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org Invite your mail contacts to join your friends list with Windows Live Spaces. It's easy! Try it! ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org Discover the new Windows Vista Learn more! ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org _ Discover the new Windows Vista http://search.msn.com/results.aspx?q=windows+vistamkt=en-USform=QBRE___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] question about passive 3D stereo using polarized projectors and openscenegraph
lucas Grijander wrote: you are right, but I have polarized glasses that go together with the polarized lenses of the projectors. I think we can have much better quality like that. You might be surprised. Depending on the polarization type and filter quality there can be a lot of ghosting in the images. You also need a good alignment on your projectors. But polarized glasses are a lot more convenient to wear than those bloody shutter glasses. Paul ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] question about passive 3D stereo using polarized projectors and openscenegraph
lucas Grijander wrote: Hi everybody!! in my lab they want to re-use an old system composed by a Cyviz Stereo 3D Converter (xpo.2). I just checked the manufacturer's page: those things are still sold at a whopping 10,000 pounds. Better put them to use ;) Paul It basically consists on a splitter which needs a frame-sequencial stereo source, and the output is two videos for two projectors (so passive stereo using polarized projectors glasses). I am quite new with this 3D stuff... I think I should use OSG_STEREO_MODE with the QUAD_BUFFER option. My question is more about the graphics card required for that, do we need any special card for that? I have a laptop with a NVIDIA geforce 8700GT, do you think it is possible to use it like that? many thanks in advance! regards, Jaime. Discover the new Windows Vista Learn more! http://search.msn.com/results.aspx?q=windows+vistamkt=en-USform=QBRE ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] question about passive 3D stereo using polarized projectors and openscenegraph
2008/11/20 Paul Melis [EMAIL PROTECTED] lucas Grijander wrote: you are right, but I have polarized glasses that go together with the polarized lenses of the projectors. I think we can have much better quality like that. You might be surprised. Depending on the polarization type and filter quality there can be a lot of ghosting in the images. You also need a good alignment on your projectors. Of course, the calibration and the settings of the material will be a little complicated at the beginning. But With this material, active stereo is possible, and this will render very well. Without 2 graphic output on your graphic card, I would be very difficult to set an active stereo I think... maybe with special synchronisation to allow the projectors to get the output each one after the other ? I don't know... By the way, this seems to be good material, have fun :-) But polarized glasses are a lot more convenient to wear than those bloody shutter glasses. :D Vincent. Paul ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] setUnRefImageDataAfterApply - is there an alternative?
Hi Robert, UnRefImageDataAfterApply is off by default. But the Optimizer by default with switch it on. You can just call the Optimizer with the settings you require rather than patch it afterwards back to what it was originally... Hmm, interesting, I can't spot any place in our framework where we call the Optimizer on a loaded model, yet the unref setting is clearly on. I'll dig around more. If you wanted to really dig into this topic I guess you could replace the osg::Image by a ProxyImage class that allows the imagery to be reloaded if its needed later. Such a class doesn't exist right now, and it wouldn't be entirely straight forward to implement. Yep, that's what I had in mind. I'll put that on my to-do list... Do those things ever get shorter? :-) Thanks for the insight. J-S -- __ Jean-Sebastien Guay[EMAIL PROTECTED] http://www.cm-labs.com/ http://whitestar02.webhop.org/ ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] question about passive 3D stereo using polarized projectors and openscenegraph
hehe, it's not an old card! it's a new laptop Dell XPS M1730 with a nvidia Geforce 8700 GT, I think it's normal that there is no two outputs... isn't it? Jaime. Date: Thu, 20 Nov 2008 13:43:42 + From: [EMAIL PROTECTED] To: osg-users@lists.openscenegraph.org Subject: Re: [osg-users] question about passive 3D stereo using polarized projectors and openscenegraph Hi Lucas, On Thu, Nov 20, 2008 at 1:17 PM, lucas Grijander [EMAIL PROTECTED] wrote: the problem is that the video card I have has only one DVI output and an S-Video output, so I think they cannot work as two different outputs. Wow. What card is it? You could try the using quad buffer stereo. Or just rip out the card and stick in a standard modern card that will have two DVI output on it, it'll only cost a couple hundred dollars to get a decent new card. Robert. ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org _ Invite your mail contacts to join your friends list with Windows Live Spaces. It's easy! http://spaces.live.com/spacesapi.aspx?wx_action=createwx_url=/friends.aspxmkt=en-us___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] question about passive 3D stereo using polarized projectors and openscenegraph
Vincent Bourdier wrote: 2008/11/20 Paul Melis [EMAIL PROTECTED] mailto:[EMAIL PROTECTED] lucas Grijander wrote: you are right, but I have polarized glasses that go together with the polarized lenses of the projectors. I think we can have much better quality like that. You might be surprised. Depending on the polarization type and filter quality there can be a lot of ghosting in the images. You also need a good alignment on your projectors. Of course, the calibration and the settings of the material will be a little complicated at the beginning. But With this material, active stereo is possible, and this will render very well. Without 2 graphic output on your graphic card, I would be very difficult to set an active stereo I think... maybe with special synchronisation to allow the projectors to get the output each one after the other ? I don't know... By the way, this seems to be good material, have fun :-) As the OP already seems to have projectors and polarization filters and such it would be easiest to just find a PC with 2 outputs and drive the projectors directly, as Robert suggested. In case he does: remember to use a projection surface that doesn't destroy the polarization ;-) But polarized glasses are a lot more convenient to wear than those bloody shutter glasses. :D Yesterday I showed a group of students anaglyphic pictures after giving them the red-blue glasses. Quite funny to see a classroom full of those things :) And even those are still more fashionable than crystaleyes... P ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] question about passive 3D stereo using polarized projectors and openscenegraph
2008/11/20 Paul Melis [EMAIL PROTECTED] Vincent Bourdier wrote: 2008/11/20 Paul Melis [EMAIL PROTECTED] mailto:[EMAIL PROTECTED] lucas Grijander wrote: you are right, but I have polarized glasses that go together with the polarized lenses of the projectors. I think we can have much better quality like that. You might be surprised. Depending on the polarization type and filter quality there can be a lot of ghosting in the images. You also need a good alignment on your projectors. Of course, the calibration and the settings of the material will be a little complicated at the beginning. But With this material, active stereo is possible, and this will render very well. Without 2 graphic output on your graphic card, I would be very difficult to set an active stereo I think... maybe with special synchronisation to allow the projectors to get the output each one after the other ? I don't know... By the way, this seems to be good material, have fun :-) As the OP already seems to have projectors and polarization filters and such it would be easiest to just find a PC with 2 outputs and drive the projectors directly, as Robert suggested. In case he does: remember to use a projection surface that doesn't destroy the polarization ;-) But polarized glasses are a lot more convenient to wear than those bloody shutter glasses. :D Yesterday I showed a group of students anaglyphic pictures after giving them the red-blue glasses. Quite funny to see a classroom full of those things :) And even those are still more fashionable than crystaleyes... Off topic question but : Where did you find theses glasses ? very difficult to find it in France, as free of course... P ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] question about passive 3D stereo using polarized projectors and openscenegraph
I'm trying to find if my geforce 8700M GT in my laptops accepts quad-buffer... how do you find that? I also agree with you, maybe it's better to find a computer with double output. We already have the non-polarized surface... as you say, we have a very good stuff here, so we must use it!! Jaime. Date: Thu, 20 Nov 2008 15:31:34 +0100 From: [EMAIL PROTECTED] To: osg-users@lists.openscenegraph.org Subject: Re: [osg-users] question about passive 3D stereo using polarized projectors and openscenegraph Vincent Bourdier wrote: 2008/11/20 Paul Melis [EMAIL PROTECTED] mailto:[EMAIL PROTECTED] lucas Grijander wrote: you are right, but I have polarized glasses that go together with the polarized lenses of the projectors. I think we can have much better quality like that. You might be surprised. Depending on the polarization type and filter quality there can be a lot of ghosting in the images. You also need a good alignment on your projectors. Of course, the calibration and the settings of the material will be a little complicated at the beginning. But With this material, active stereo is possible, and this will render very well. Without 2 graphic output on your graphic card, I would be very difficult to set an active stereo I think... maybe with special synchronisation to allow the projectors to get the output each one after the other ? I don't know... By the way, this seems to be good material, have fun :-) As the OP already seems to have projectors and polarization filters and such it would be easiest to just find a PC with 2 outputs and drive the projectors directly, as Robert suggested. In case he does: remember to use a projection surface that doesn't destroy the polarization ;-) But polarized glasses are a lot more convenient to wear than those bloody shutter glasses. :D Yesterday I showed a group of students anaglyphic pictures after giving them the red-blue glasses. Quite funny to see a classroom full of those things :) And even those are still more fashionable than crystaleyes... P ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org _ Explore the seven wonders of the world http://search.msn.com/results.aspx?q=7+wonders+worldmkt=en-USform=QBRE___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] CompositeViewer addView threading issue on Windows?
On Thu, Nov 20, 2008 at 2:34 PM, Jean-Sébastien Guay [EMAIL PROTECTED] wrote: sparky Linux 2.4.21-102-smp x86_64 GNU/Linux My crash seems to be of this type, although no problem with threading model switching. I wonder if I can try to use software rendering to see if it makes a difference. -- Csaba ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] question about passive 3D stereo using polarized projectors and openscenegraph
lucas Grijander wrote: I'm trying to find if my geforce 8700M GT in my laptops accepts quad-buffer... how do you find that? Only Quadro's support quad-buffered stereo officially. There used to be softmods around to turn a Geforce into a Quadro but I don't think these work anymore these days Paul I also agree with you, maybe it's better to find a computer with double output. We already have the non-polarized surface... as you say, we have a very good stuff here, so we must use it!! Jaime. Date: Thu, 20 Nov 2008 15:31:34 +0100 From: [EMAIL PROTECTED] To: osg-users@lists.openscenegraph.org Subject: Re: [osg-users] question about passive 3D stereo using polarized projectors and openscenegraph Vincent Bourdier wrote: 2008/11/20 Paul Melis [EMAIL PROTECTED] mailto:[EMAIL PROTECTED] lucas Grijander wrote: you are right, but I have polarized glasses that go together with the polarized lenses of the projectors. I think we can have much better quality like that. You might be surprised. Depending on the polarization type and filter quality there can be a lot of ghosting in the images. You also need a good alignment on your projectors. Of course, the calibration and the settings of the material will be a little complicated at the beginning. But With this material, active stereo is possible, and this will render very well. Without 2 graphic output on your graphic card, I would be very difficult to set an active stereo I think... maybe with special synchronisation to allow the projectors to get the output each one after the other ? I don't know... By the way, this seems to be good material, have fun :-) As the OP already seems to have projectors and polarization filters and such it would be easiest to just find a PC with 2 outputs and drive the projectors directly, as Robert suggested. In case he does: remember to use a projection surface that doesn't destroy the polarization ;-) But polarized glasses are a lot more convenient to wear than those bloody shutter glasses. :D Yesterday I showed a group of students anaglyphic pictures after giving them the red-blue glasses. Quite funny to see a classroom full of those things :) And even those are still more fashionable than crystaleyes... P ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org Explore the seven wonders of the world Learn more! http://search.msn.com/results.aspx?q=7+wonders+worldmkt=en-USform=QBRE ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
[osg-users] How to pass a fixed possition to a vertex shader?
Hi Umit, You have used same texture unit for 2 texture so your last initilazed texture on unit 1 active. I mean, EarthCloudGloss active on unit 1. so you should texture EarthCloudGloss to the unit 2. That's what I thought but it was not working. There was a silly mistake in my osg code, I was reusing texture2 instead of texture3 in the last image assignment (as you can see in my first message). That's fixed now. My problem is tha I have a fixed possition in world coordinates (LightPosition) as a Uniform parameter. At the time of passing it to the vertex shader, apparently it is seen as fixed in screen coordinates. If I move the view, the scene moves but not the effect of the shader. How should I convert the vertex coordinate? I know this is maybe a faq but as I told, it's my first shader experiment, and I can't make it work. I will highly appreciate any help. Best regards, -- A. ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] question about passive 3D stereo using polarized projectors and openscenegraph
My understanding is only the Quadro range of cards from NVidia support quad buffer Gordon __ Gordon Tomlinson Product Manager 3D Email : gtomlinson @ overwatch.textron.com __ (C): (+1) 571-265-2612 (W): (+1) 703-437-7651 Self defence is not a function of learning tricks but is a function of how quickly and intensely one can arouse one's instinct for survival - Master Tambo Tetsura From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of lucas Grijander Sent: Thursday, November 20, 2008 9:49 AM To: OpenSceneGraph Users Subject: Re: [osg-users] question about passive 3D stereo using polarized projectors and openscenegraph I'm trying to find if my geforce 8700M GT in my laptops accepts quad-buffer... how do you find that? I also agree with you, maybe it's better to find a computer with double output. We already have the non-polarized surface... as you say, we have a very good stuff here, so we must use it!! Jaime. Date: Thu, 20 Nov 2008 15:31:34 +0100 From: [EMAIL PROTECTED] To: osg-users@lists.openscenegraph.org Subject: Re: [osg-users] question about passive 3D stereo using polarized projectors and openscenegraph Vincent Bourdier wrote: 2008/11/20 Paul Melis [EMAIL PROTECTED] mailto:[EMAIL PROTECTED] lucas Grijander wrote: you are right, but I have polarized glasses that go together with the polarized lenses of the projectors. I think we can have much better quality like that. You might be surprised. Depending on the polarization type and filter quality there can be a lot of ghosting in the images. You also need a good alignment on your projectors. Of course, the calibration and the settings of the material will be a little complicated at the beginning. But With this material, active stereo is possible, and this will render very well. Without 2 graphic output on your graphic card, I would be very difficult to set an active stereo I think... maybe with special synchronisation to allow the projectors to get the output each one after the other ? I don't know... By the way, this seems to be good material, have fun :-) As the OP already seems to have projectors and polarization filters and such it would be easiest to just find a PC with 2 outputs and drive the projectors directly, as Robert suggested. In case he does: remember to use a projection surface that doesn't destroy the polarization ;-) But polarized glasses are a lot more convenient to wear than those bloody shutter glasses. :D Yesterday I showed a group of students anaglyphic pictures after giving them the red-blue glasses. Quite funny to see a classroom full of those things :) And even those are still more fashionable than crystaleyes... P ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.or g Explore the seven wonders of the world Learn more! http://search.msn.com/results.aspx?q=7+wonders+worldmkt=en-USform=QBR E ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] CompositeViewer addView threading issue on Windows?
Hi, Jean-Sébastien Guay wrote: Hi Robert, OpenGL version string: 2.1.1 NVIDIA 100.14.19 Intel Quad core, Kubuntu 7.10. Hmmm, seems older than what JP and Csaba reported? Or am I reading the numbers wrong? Yes, it's older. Website says 100.14.19 = Sept 2007. Think I'll have to downgrade kernel to a version that would be happy with older NVidia driver. Robert what kernel version are you using? How do you install NVidia driver? jp -- This message is subject to the CSIR's copyright terms and conditions, e-mail legal notice, and implemented Open Document Format (ODF) standard. The full disclaimer details can be found at http://www.csir.co.za/disclaimer.html. This message has been scanned for viruses and dangerous content by MailScanner, and is believed to be clean. MailScanner thanks Transtec Computers for their support. ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] question about passive 3D stereo using polarized projectors and openscenegraph
Bonjour Vincent, Vincent Bourdier wrote: Off topic question but : Where did you find theses glasses ? very difficult to find it in France, as free of course... We've recently bought a lot of anaglyphic glasses from http://www.buy3dglasses.fr/hapack.php and they are just fine. jcl -- Jean-Christophe Lombardo Espace Immersif DREAM / INRIA 2004 route des Lucioles - BP93 - 06902 Sophia Antipolis Cedex - France http://www.inria.fr/sophiaC013 Tel.: +33 4 92 38 50 26 ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] question about passive 3D stereo using polarized projectors and openscenegraph
Thanks a lot :-) I'm just curious and interested. Regards, Vincent. 2008/11/20 Jean-Christophe Lombardo [EMAIL PROTECTED] Bonjour Vincent, Vincent Bourdier wrote: Off topic question but : Where did you find theses glasses ? very difficult to find it in France, as free of course... We've recently bought a lot of anaglyphic glasses from http://www.buy3dglasses.fr/hapack.php and they are just fine. jcl -- Jean-Christophe Lombardo Espace Immersif DREAM / INRIA 2004 route des Lucioles - BP93 - 06902 Sophia Antipolis Cedex - France http://www.inria.fr/sophiaC013 Tel.: +33 4 92 38 50 26 ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] setUnRefImageDataAfterApply - is there an alternative?
Hi JS, On Thu, Nov 20, 2008 at 2:13 PM, Jean-Sébastien Guay [EMAIL PROTECTED] wrote: Hmm, interesting, I can't spot any place in our framework where we call the Optimizer on a loaded model, yet the unref setting is clearly on. I'll dig around more. Could it be that the models have already been optimized then saved to .ive or .osg and then you load these optimized files with unref enabled? Yep, that's what I had in mind. I'll put that on my to-do list... Do those things ever get shorter? :-) In nearly a decade of hacking on the OSG my todo list has only ever got longer, or stabilised for a brief while... Robert. ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] CompositeViewer addView threading issue on Windows?
Hi J.P. et al., On Thu, Nov 20, 2008 at 3:01 PM, J.P. Delport [EMAIL PROTECTED] wrote: Yes, it's older. Website says 100.14.19 = Sept 2007. Think I'll have to downgrade kernel to a version that would be happy with older NVidia driver. Robert what kernel version are you using? 2.6.22-15-generic How do you install NVidia driver? I've let Kubuntu just install what it maintains in the repository for 7.10. Next week I'll be building a new machine, based on Core i7 + X58, I'll probably install Kubuntu 8.10 on it and see how I get on with KDE 4.1.x as a main dev machine. I might revert back to 8.04 though if KDE 4.1.x can't yet cope with multiple graphics cards/multi-headed. Either way I'll another multi-threaded system to test this issue against. Robert. ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] CompositeViewer addView threading issue on Windows?
On Thu, Nov 20, 2008 at 3:51 PM, Csaba Halász [EMAIL PROTECTED] wrote: I wonder if I can try to use software rendering to see if it makes a difference. I have run it with mesa in a nested x server, no hangs. After each added view, however, I got a single Warning: detected OpenGL error 'invalid operation' after RenderBin::draw(,) message (ie. *not* every frame). Don't know if that is relevant. Also, the software rendering might be too slow to produce the problem. Anybody got some further suggestions? -- Csaba ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] setUnRefImageDataAfterApply - is there an alternative?
Hi Robert, Could it be that the models have already been optimized then saved to .ive or .osg and then you load these optimized files with unref enabled? Yep, that was it. Darn. Anyways, I'll probably add settings in our framework to control this on a per-model and global scope, so that we won't be dependent on how the model was constructed - in some apps we need the image data to stay, but in most we can gladly let it be unreffed without problems. In nearly a decade of hacking on the OSG my todo list has only ever got longer, or stabilised for a brief while... It was a rhetorical question, but I know how you feel :-) J-S -- __ Jean-Sebastien Guay[EMAIL PROTECTED] http://www.cm-labs.com/ http://whitestar02.webhop.org/ ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
[osg-users] FW: [osg-submissions] segfault in buffered_value andviewerbaserevisited
Re-posted from osg-submissions as requested On Wed, Nov 19, 2008 at 10:56 PM, Centers, Kyle [EMAIL PROTECTED] wrote: Robert, I did say I might be doing something wrong :) But if the goal is to have the buffers initialize to the correct size before threading, why have the resize() call there at all? Also, what about the case where someone creates a new context after threading has begun? I don't see anything that prevents it, and in fact, it looks like CompositeViewer specifically is designed to support it. While I'm on the subject, why do ViewerBase::setUpThreading(), and ViewerBase::setThreadingModel() both call ViewerBase::startThreading()? Seems to me, if you're not currently threading, just because you set the ThreadingModel, that doesn't necessarily mean you want to start threading right away (although if you were already threading, you certianly want to stop threading before setting the Threading Model, and should probably restart threading after you have done so - that or refuse to set the Threading Model all together until threading stops). Seems like a more orthognonal approach would be more sensible, even if less convenient. Kyle From: [EMAIL PROTECTED] on behalf of Robert Osfield Sent: Wed 11/19/2008 2:27 PM To: OpenSceneGraph Submissions Subject: Re: [osg-submissions] segfault in buffered_value and viewerbaserevisited Hi Kyle, There deliberately isn't a mutex as it would be a performance killer. Reviewing your change the resize code isn't thread safe anyway - as you have to protect all access to the internal vector as accessing it at the same time as resizing will cause problems. The design of osgViewer/OSG's OpenGL object management/osg::buffered_value is that the viewer initializes the buffers to the maximum number of contexts require prior to multi-threading. osgViewer normally manages this automatically for you so you must have some corner case usage model that the buffer isn't initialized to the correct size. As for the catch on the dodgy earlier submission, I should have spotted this, and you are right in that the naming fooled both of us. Frustratingly when I wrote the original and correct code I would have been aware exactly which valid referenced to what object, only on review of your submission did I miss this. I'll have a think about naming of the context valid method. Changing its name would break compatibility though... Robert. On Wed, Nov 19, 2008 at 5:27 PM, Centers, Kyle [EMAIL PROTECTED] wrote: A few weeks ago, I submitted a change proposal to include/osgViewer/ViewerBase, wherein I recommended removing a redundant call to _currentContext.valid(), in releaseContext(). That was wrong. The line in question (line 254) reads: if (_currentContext.valid() _currentContext-valid()) note that the two calls to valid() are prefixed with the . operator first, and then the - operator... turns out, _currentContext is actually an observer_ptrosg::GraphicsContext, and not a osg::GraphicsContext... oops. In my defense, that is phenomenally unclear code. Perhaps renaming one of those valid() calls would make it more clear? I don't know, but that line, at the very least, needs a comment explaining that it is, in fact, correct. Next, I ran across a couple of segfaults while running with three separate GC's and three cameras (one master, two slaves), all rendering from the same scene. I traced the problem to include/osg/buffered_value, in both buffered_valueT::operator[], and in buffered_objectT::operator[]. Both dynamically resize _array any time pos exceeds _array.size(). In a threaded environment, if one thread tries to access _array while another thread is resizing it, the result is a segfault. I don't know if I'm doing something wrong or not, but I added an OpenThreads::Mutex to both classes and that seems to solve the problem for me (updated buffered_value file attached). Kyle ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] question about passive 3D stereo using polarized projectors and openscenegraph
Hi Jaime, On Thu, Nov 20, 2008 at 2:48 PM, lucas Grijander [EMAIL PROTECTED] wrote: I also agree with you, maybe it's better to find a computer with double output. Another possible solution you could explore is to buy a Matrox DualHead2Go box that takes a single input and generates two separate outputs. I've tested a TripleHead2Go under Linux a few years back and it worked just fine albeit with a bit soft image quality vs normal monitor output but it still worked. On the OSG side you'd just create a single window across a wide desktop and use the horizontal split stereo to direct the correct eye output to each projector. Robert. ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] CompositeViewer addView threading issue on Windows?
Hi Csaba et. al, On Thu, Nov 20, 2008 at 3:50 PM, Csaba Halász [EMAIL PROTECTED] wrote: I have run it with mesa in a nested x server, no hangs. After each added view, however, I got a single Warning: detected OpenGL error 'invalid operation' after RenderBin::draw(,) message (ie. *not* every frame). Don't know if that is relevant. Also, the software rendering might be too slow to produce the problem. Anybody got some further suggestions? One thought I have about the a possible failure mode is that perhaps one graphics context thread is hanging or crashing, and the rest of the threads succeed rendering their frame and get all the way to the barrier at the end of the frame. This would result is stack traces where all but one would be hanging on a barrier. if this is correct then the issue is about finding out why one of the graphics threads fails. It could be an OpenGL object management issue, and the invalid operations might be an early warning of this. The fact that problems exists across many machines with quite different OS/hardware/drivers strongly suggests an OSG bug, and that the rest of the variables are just co-incidence. I think the best lead would be that perhaps the texture object/display lists buffer_value containers aren't being resized to fit the new number of contexts which the app is running single threaded. In theory addView should be stopping all threads, and then issuing the Node::resizeGLObejcts() on the scene graph so handling this situation, but perhaps this isn't happening. Robert. ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] Question about views, contexts and threading
Thank you, that at least explains some of the drawing times I've been seeing. I ran more tests on our dual-gpu system, summarized below. Not striclty OSG related, but they may be interesting nonetheless... - Scene of 25x 1 million polygon model, all visible. Culling etc neglibile. - Stand-alone refers to one rendering context only; normal, non-parallel rendering - frame rates in FPS CPU Affinity on different cores OSG_THREADING=SingleThreaded (1 core shows heavy use, 2nd core show moderate use, 2 cores idle) Quadro 56008800GTX Single-GPU / Stand-alone1615 Single-GPU / Multi-Threaded7.57.5 Single-GPU / Multi-Processing7.57.5 Multi-GPU / Multi-Threaded6.56.5 Multi-GPU / Multi-Processing1615 Quadro 56008800GTX OSG_THREADING=ThreadPerContext (CPU Affinity is set but appears to be ignored: 1 core shows heavy use, others idle) Single-GPU / Stand-alone1615 Single-GPU / Multi-Threaded7.57.5 Single-GPU / Multi-Processing7.57.5 Multi-GPU / Multi-Threaded3.511 Multi-GPU / Multi-Processing1114 Quadro 56008800GTX Baseline: Multi-GPU / Multi-Threaded6.56.5 Speeding up one card by rendering empty scene*, effect on other card: Multi-GPU / Multi-Threaded6000*15 Multi-GPU / Multi-Threaded714* All results are reasonable, except: Single-GPU / Multi-Processing7.57.5 Multi-GPU / Multi-Threaded6.56.5 Multi-GPU / Multi-Processing1615 Which is very strange; using two distinct GPUs simultaneously in a threaded way in the same address space is slower than sharing a single GPU. I can only conclude that OpenGL drivers can not handle multi-threading with different contexts on different devices. It also seems that the Quadro is the culprit, locking the driver or something. If you let the quadro render fast, the 8800 also renders fast. However, if you allow the 8800 to render fast, both will remain slow. Robert Osfield wrote: Hi Ferdi, The understand what is happening with draw in the two instances you need to understand how OpenGL operates. For each graphics context OpenGL maintains a FIFO that is filled by the applications graphics thread for that context, and is drained by the driver that batches the commands/data in the fifo up into a form that can be pushed to the graphics card. Now if this FIFO has plenty of room then the application can keep filling the FIFO without OpenGL ever blocking the applications graphis thread - in this case the draw dispatch times (the OSG side) are relatively low. If however you fill the FIFO then OpenGL will block the applications graphics thread till enough room has been made by the GPU consuming command/data at the other end. When you get to this point often you'll find draw dispatch times that suddenly jump up, and it's not because it's suddenly doing more work - in fact the app graphics thread is just sitting their idle waiting for the graphics drive/GPU to do it's stuff. Now drivers may have different sized FIFO's, and different GPU's will work at different speeds and possibly have other features that affect the FIFO filling/emptying. One would expect slower GPU's to empty the fifo slower so are more likely to block, but the driver can also have affect. The architecture of overall hardware, what other threads are running, how contended the various parts of the hardware etc all can have an effect. The fact that one GPU's draw dispatch is far longer than another might simply bit that it's pushed just hard enough to fill the FIFO, but it might still hit frame just fine, but the draw times will be drastically higher because of the blocking due to the filled FIFO, a slightly lower load will lead could lead to FIFO not blocking an huge drop in draw dispatch times. It's very no linear, small differences can result in large observed differences, but often the long draw time might not be anything to worry about - it's just an early warning sign, you might still hit your target frame rate just fine. Robert. Robert. On Tue, Nov 18, 2008 at 3:31 PM, Ferdi Smit [EMAIL PROTECTED] wrote: Hi Robert, I ran some more tests with a realistic scene of ~25M polygons (25 times the same 1M model). Stand-alone this is rendered at ~15 FPS on one GPU (8800GTX or Quadro FX5600 + Intel Quad Core). Multi-_processing_ with two contexts at two gpus, both rendering this scene, the 8800 stays at 15 but the Quadro drops to 12. Multi-_threading_ with two contexts at two gpus, the 8800 drops to 9.5 and the quadro to 4.5 FPS. This is weird. Also, the 8800 reports (in the osg performance hud) that GPU=65 and Draw=10. Draw is always much lower than GPU. But the Quadro in multi-threading goes to GPU=210 and Draw=210; GPU and Draw are suddenly equal now. What does
Re: [osg-users] Question about views, contexts and threading
HI Ferdi, Could try the same tests but with the following env var set: set OSG_SERIALIZE_DRAW_DISPATCH=OFF This will disable the mutex that serializes the draw dispatch. Have a search through the archives on this topic as I've written lots about this topic and the fact serialize draw curious improves performance on systems that I've tested on. I still haven't had feedback from the community on this topic as it's likely to be something effected by hardware/drivers and OS. Robert. On Thu, Nov 20, 2008 at 4:05 PM, Ferdi Smit [EMAIL PROTECTED] wrote: Thank you, that at least explains some of the drawing times I've been seeing. I ran more tests on our dual-gpu system, summarized below. Not striclty OSG related, but they may be interesting nonetheless... - Scene of 25x 1 million polygon model, all visible. Culling etc neglibile. - Stand-alone refers to one rendering context only; normal, non-parallel rendering - frame rates in FPS CPU Affinity on different cores OSG_THREADING=SingleThreaded (1 core shows heavy use, 2nd core show moderate use, 2 cores idle) Quadro 56008800GTX Single-GPU / Stand-alone1615 Single-GPU / Multi-Threaded7.57.5 Single-GPU / Multi-Processing7.57.5 Multi-GPU / Multi-Threaded6.56.5 Multi-GPU / Multi-Processing1615 Quadro 56008800GTX OSG_THREADING=ThreadPerContext (CPU Affinity is set but appears to be ignored: 1 core shows heavy use, others idle) Single-GPU / Stand-alone1615 Single-GPU / Multi-Threaded7.57.5 Single-GPU / Multi-Processing7.57.5 Multi-GPU / Multi-Threaded3.511 Multi-GPU / Multi-Processing1114 Quadro 56008800GTX Baseline: Multi-GPU / Multi-Threaded6.56.5 Speeding up one card by rendering empty scene*, effect on other card: Multi-GPU / Multi-Threaded6000*15 Multi-GPU / Multi-Threaded714* All results are reasonable, except: Single-GPU / Multi-Processing7.57.5 Multi-GPU / Multi-Threaded6.56.5 Multi-GPU / Multi-Processing1615 Which is very strange; using two distinct GPUs simultaneously in a threaded way in the same address space is slower than sharing a single GPU. I can only conclude that OpenGL drivers can not handle multi-threading with different contexts on different devices. It also seems that the Quadro is the culprit, locking the driver or something. If you let the quadro render fast, the 8800 also renders fast. However, if you allow the 8800 to render fast, both will remain slow. Robert Osfield wrote: Hi Ferdi, The understand what is happening with draw in the two instances you need to understand how OpenGL operates. For each graphics context OpenGL maintains a FIFO that is filled by the applications graphics thread for that context, and is drained by the driver that batches the commands/data in the fifo up into a form that can be pushed to the graphics card. Now if this FIFO has plenty of room then the application can keep filling the FIFO without OpenGL ever blocking the applications graphis thread - in this case the draw dispatch times (the OSG side) are relatively low. If however you fill the FIFO then OpenGL will block the applications graphics thread till enough room has been made by the GPU consuming command/data at the other end. When you get to this point often you'll find draw dispatch times that suddenly jump up, and it's not because it's suddenly doing more work - in fact the app graphics thread is just sitting their idle waiting for the graphics drive/GPU to do it's stuff. Now drivers may have different sized FIFO's, and different GPU's will work at different speeds and possibly have other features that affect the FIFO filling/emptying. One would expect slower GPU's to empty the fifo slower so are more likely to block, but the driver can also have affect. The architecture of overall hardware, what other threads are running, how contended the various parts of the hardware etc all can have an effect. The fact that one GPU's draw dispatch is far longer than another might simply bit that it's pushed just hard enough to fill the FIFO, but it might still hit frame just fine, but the draw times will be drastically higher because of the blocking due to the filled FIFO, a slightly lower load will lead could lead to FIFO not blocking an huge drop in draw dispatch times. It's very no linear, small differences can result in large observed differences, but often the long draw time might not be anything to worry about - it's just an early warning sign, you might still hit your target frame rate just fine. Robert. Robert. On Tue, Nov 18, 2008 at 3:31 PM, Ferdi Smit [EMAIL PROTECTED] wrote: Hi Robert, I ran some more tests with a
Re: [osg-users] MAC
Wasileski, Bryan J. wrote: Hi, I’ve not monitored the group mail for a while and was wondering if anyone could give me some user/developer experiences of OSG with the Mac. I was the most recent to push things along with OSG on the Mac. I was working a bit with the X11 path and 64-bit compiles, and think it works with cmake generating xcode projects. However, things like QT and quicktime are not available this way (which means that common image file formats are also broken). Eric Wing developed an ImageIO plugin for images that I have partially integrated but not yet finished. To get animations working on 64-bit a new plugin that uses QTKit needs to be developed. For 32-bit compiles all the old stuff should still work. The stuff that doesn't work is automatically excluded when a 64-bit platform is included in the Xcode generation. Currently the Xcode projects (the ones generated by CMake) just make shared libraries. I also intend on getting it to generate Frameworks, but that work is not very far along. The hand-generated Xcode projects make Frameworks, but I'm not sure if they are up-to-date. There are a lot of permutations on how to build on the Mac. I am interested in suggestions on what is broken so it can be improved. The way forward is through CMake. The old Xcode projects may or may not function, and will probably not be maintained into the future. As for getting CMake to run on the mac, I downloaded a binary package of cmake 2.6.x from CMake's web site, and it just worked for me, with a GUI and everything. I didn't try to compile CMake myself, nor use MacPorts or any other package repository. I haven't tried to run cmake on the command line. I believe that the binary CMake bundle has the command-line executables contained within. I usually generate Xcode projects from cmake and then compile. This is the easiest way to produce a universal binary. As I was making changes this summer I tried to maintain compatibility with 10.4, and even cross-compiling for 10.4 on 10.5. I'm not sure how well I succeeded. Suggestions and questions are welcome. -Eric ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] CompositeViewer addView threading issue on Windows?
Hi All,
On Thu, Nov 20, 2008 at 4:01 PM, Robert Osfield
[EMAIL PROTECTED] wrote:
I think the best lead would be that perhaps the texture object/display
lists buffer_value containers aren't being resized to fit the new
number of contexts which the app is running single threaded. In
theory addView should be stopping all threads, and then issuing the
Node::resizeGLObejcts() on the scene graph so handling this situation,
but perhaps this isn't happening.
I've looked into the
CompositeViewer:::addView()/View::setSceneData()/Viewer::setSceneData()
methods and only the Viewer::setSceneData() has a call to resize the
GL objects. The actual code looks like:
void Viewer::setSceneData(osg::Node* node)
{
setReferenceTime(0.0);
View::setSceneData(node);
if (_threadingModel!=SingleThreaded getSceneData())
{
// make sure that existing scene graph objects are allocated
with thread safe ref/unref
getSceneData()-setThreadSafeRefUnref(true);
// update the scene graph so that it has enough GL object
buffer memory for the graphics contexts that will be using it.
getSceneData()-resizeGLObjectBuffers(osg::DisplaySettings::instance()-getMaxNumberOfGraphicsContexts());
}
}
My guess is that we need to move the resize/setThreadSafeRefUnref() up
into the View::setSceneData() method. The Viewer::setSceneData()
method is a viewer so has access to members of ViewerBase that View
doesn't have. Another issue is that if we are setting the View up
prior to any call to stopThreading as the resize isn't thread safe.
As we don't know whether this is the cause of the problem yet, I've
modified J-S's osgviewer.cpp to do the resize. Could users who've
seen problems try this version out, if this works then we have
workaround that end users can apply to existing apps, and we can
figure out a solution to fix it permanently in svn/trunk.
Robert.
Robert.
/* -*-c++-*- OpenSceneGraph - Copyright (C) 1998-2006 Robert Osfield
*
* This application is open source and may be redistributed and/or modified
* freely and without restriction, both in commericial and non commericial applications,
* as long as this copyright notice is maintained.
*
* This application is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
*/
#include osgDB/ReadFile
#include osgUtil/Optimizer
#include osg/CoordinateSystemNode
#include osg/Switch
#include osgText/Text
#include osgViewer/CompositeViewer
#include osgViewer/ViewerEventHandlers
#include osgGA/TrackballManipulator
#include osgGA/FlightManipulator
#include osgGA/DriveManipulator
#include osgGA/KeySwitchMatrixManipulator
#include osgGA/StateSetManipulator
#include osgGA/AnimationPathManipulator
#include osgGA/TerrainManipulator
#include iostream
void addEventHandlers(osgViewer::View* view)
{
// set up the camera manipulators.
view-setCameraManipulator( new osgGA::TrackballManipulator() );
// add the state manipulator
view-addEventHandler( new osgGA::StateSetManipulator(view-getCamera()-getOrCreateStateSet()) );
// add the thread model handler
view-addEventHandler(new osgViewer::ThreadingHandler);
// add the window size toggle handler
view-addEventHandler(new osgViewer::WindowSizeHandler);
// add the stats handler
view-addEventHandler(new osgViewer::StatsHandler);
// add the record camera path handler
view-addEventHandler(new osgViewer::RecordCameraPathHandler);
// add the LOD Scale handler
view-addEventHandler(new osgViewer::LODScaleHandler);
// add the screen capture handler
view-addEventHandler(new osgViewer::ScreenCaptureHandler);
}
class AddViewHandler : public osgGA::GUIEventHandler
{
public:
AddViewHandler(osgViewer::CompositeViewer* viewer, osg::Node* sceneRoot)
: _viewer(viewer), _sceneRoot(sceneRoot) {}
bool handle(const osgGA::GUIEventAdapter ea, osgGA::GUIActionAdapter aa)
{
if (ea.getEventType() == osgGA::GUIEventAdapter::KEYDOWN ea.getKey()== 'a')
{
osgViewer::View* view = new osgViewer::View;
view-setUpViewInWindow(50, 50, 800, 600);
view-getCamera()-getGraphicsContext()-realize();
view-setSceneData(_sceneRoot.get());
addEventHandlers(view);
_viewer-stopThreading();
_viewer-addView(view);
osg::notify(osg::NOTICE)osg::DisplaySettings::instance()-getMaxNumberOfGraphicsContexts()= osg::DisplaySettings::instance()-getMaxNumberOfGraphicsContexts()std::endl;
view-getSceneData()-setThreadSafeRefUnref(true);
view-getSceneData()-resizeGLObjectBuffers(osg::DisplaySettings::instance()-getMaxNumberOfGraphicsContexts());
_viewer-startThreading();
return true;
}
return false;
}
protected:
[osg-users] If I have a Vec3f, and I want to rotate it, do I use osg::Matrixf::rotate?
probably a dumb question...but... If I have a Vec3f, and I want to rotate it, do I use osg::Matrixf::rotate? Ed ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] CompositeViewer addView threading issue on Windows?
Hi J-S, J.P., and non-initialed persons of interest (or P.O.I.s), J-S beat me and posted the traces I mailed to him off-line yesterday. I was doing another round of tests to see if I could really duplicate his exact problem. I can't. I don't get the hang unless I change the threading model. On all tested systems I could create 40 or more addView windows when staying with SingleThreaded. A few notes on an anomoly or two in my results. System cartman shows many more threads than expected. Perhaps there's a bug in gdb that shows the same thread multiple time. Where I mentioned missing cows, I would get a background colored window and no other graphics. System curly has a package for a driver fire-glfglrx_4_3_0-8.10.19-1.i386.rpm, but since it's very obviously draw limited it probably really is rendering with Mesa. Another system that is known to be Mesa didn't have any problems with the addView test. System sparky may have an entirely different problem. We're cross platform CAE developers here and upgrade our drivers very infrequently. I suspect that is why we may be finding so many problems with OSG and threading. -Don Hi all, Thanks for testing again. I've had a few other reports for Linux and Windows, some can repro others can't, so I'm trying to get hardware details and driver versions to see if it could be dependent of these factors. Thanks for providing them. Robert suggested off-list that I post these stack traces, so here they are. The first one in particular (jeckle) seems to show the same problem I have been investigating. Thanks to Don Leich for testing on a few different machines (hardware, driver versions). I hope this info will be useful. J-S ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] If I have a Vec3f, and I want to rotate it, do I use osg::Matrixf::rotate?
probably a dumb question...but... If I have a Vec3f, and I want to rotate it, do I use osg::Matrixf::rotate? That will just create a rotation matrix. You'll still need to do the multiplication to transform the vector. Here's what you want, except I use a Quat instead of a Matrix: osg::Vec3 v( x, y, z ); osg::Quat q( angle, osg::Vec3( axisX, axisY, axisZ ) ); v = q * v; -Paul ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] CompositeViewer addView threading issue on Windows?
Interesting. My system sparky has OpenGL version string: 2.1.1 NVIDIA 100.14.19 AMD-64, SuSe 9.2 (I think) rather old kernel 2.4.21-102-smp -Don Robert, what driver version are you using? Any chance OpenGL version string: 2.1.1 NVIDIA 100.14.19 Intel Quad core, Kubuntu 7.10. ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] CompositeViewer addView threading issue on Windows?
Hi Robert,
As we don't know whether this is the cause of the problem yet, I've
modified J-S's osgviewer.cpp to do the resize. Could users who've
seen problems try this version out, if this works then we have
workaround that end users can apply to existing apps, and we can
figure out a solution to fix it permanently in svn/trunk.
I'm in the process of building OSG and the modified osgviewer.cpp
following an svn update which I shouldn't have done (would have been
quicker). I'll let you know my results.
I've seen another threading-related problem. When creating a new
context, I'm getting crashes caused by the fact that
GraphicsWindowWin32::realize() calls makeCurrent(), which looks like this:
bool GraphicsContext::makeCurrent()
{
bool result = makeCurrentImplementation();
if (result)
{
_threadOfLastMakeCurrent = OpenThreads::Thread::CurrentThread();
// initialize extension process, not only initializes on first
// call, will be a non-op on subsequent calls.
getState()-initializeExtensionProcs();
}
return result;
}
The call to getState()-initializeExtensionProcs() calls glGetString(
GL_VERSION ) to check some things. Now, it can happen that between the
makeCurrentImplementation() and the glGetString() in
initializeExtensionProcs(), some other graphics thread that wanted to
draw called makeCurrent() as well, and thus when glGetVersion() is
called it no longer has the context current.
Obviously we have to be pretty unlucky to run into this, but as the
number of contexts becomes larger, it has more chances of happening (or
even the opposite, a graphics thread doing some drawing and then we
construct a new GraphicsWindowWin32 which calls makeCurrent() and the
graphics thread's context is no longer current).
Whichever thread we create contexts on, I think there's no way to be
sure that no graphics thread is currently drawing (since the draw for
thread n-1 might overlap the event,update,cull of frame n in certain
threading modes) am I right? Should there be some mutex to prevent
makeCurrent() while another thread is drawing, or makeCurrent() while a
context is being created?
I'm trying to get my head around these threading problems. Keeping track
of on which thread a given method will be called is a bit hard sometimes.
Thanks,
J-S
--
__
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[osg-users] 2Dimensional array
I need to create a 2Dimensional array of Vec3f. I could do this the ol' osg::Vec3f **myArray way, but wasn't sure if that is the way it should be done, as opposed to osg::ref_ptr, etc. The I thought, maybe there is already a class for 2Dimensional arrays...but I didn't find one. Is there such a class? Ed ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] 2Dimensional array
Hi Ed, Maybe you could use std::vectorosg::Vec3Array myArray . Regards. On Thu, Nov 20, 2008 at 7:46 PM, Ed [EMAIL PROTECTED] wrote: I need to create a 2Dimensional array of Vec3f. I could do this the ol' osg::Vec3f **myArray way, but wasn't sure if that is the way it should be done, as opposed to osg::ref_ptr, etc. The I thought, maybe there is already a class for 2Dimensional arrays...but I didn't find one. Is there such a class? Ed ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org -- Christophe Loustaunau. ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] 2Dimensional array
So I could do something like this (in pseudocode)?
std::vector osg::ref_ptrosg::Vec3Array myData;
osg::Vec3f currentDataPoint;
Outerloop...{
osg::ref_ptrosg::Vec3Array currentDataArray;
Innerloop {
currentDataPoint.set(...);
currentDataArray-push_back(currentDataPoint);
}
myData.push_back(currentDataArray);
}
Ed
christophe loustaunau wrote:
Hi Ed,
Maybe you could use std::vectorosg::Vec3Array myArray .
Regards.
On Thu, Nov 20, 2008 at 7:46 PM, Ed [EMAIL PROTECTED]
mailto:[EMAIL PROTECTED] wrote:
I need to create a 2Dimensional array of Vec3f. I could do this
the ol'
osg::Vec3f **myArray
way, but wasn't sure if that is the way it should be done, as
opposed to osg::ref_ptr, etc. The I thought, maybe there is
already a class for 2Dimensional arrays...but I didn't find one.
Is there such a class?
Ed
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Re: [osg-users] CompositeViewer addView threading issue on Windows?
Hi Robert,
As we don't know whether this is the cause of the problem yet, I've
modified J-S's osgviewer.cpp to do the resize. Could users who've
seen problems try this version out, if this works then we have
workaround that end users can apply to existing apps, and we can
figure out a solution to fix it permanently in svn/trunk.
Well, seems like that didn't change anything. But following your hint I
checked where the renderingTraversals was stuck:
// wait till the dynamic draw is complete.
if (_endDynamicDrawBlock.valid())
{
// osg::Timer_t startTick = osg::Timer::instance()-tick();
_endDynamicDrawBlock-block();
// osg::notify(osg::NOTICE)Time waiting
osg::Timer::instance()-delta_m(startTick,
osg::Timer::instance()-tick())std::endl;;
}
It's hung on the _endDynamicDrawBlock-block(); line.
When it hung, I had just created a 4th view (=4th context).
Uncoincidentally, there are 4 threads on GraphicsThread::run(), which
calls GraphicsContext::makeCurrent(), which calls
GraphicsWindowWin32::makeCurrentImplementation, which is stuck on the
wglMakeCurrent() call. One of those 4 is stuck in the middle of the
graphics driver DLL, but I'm not sure that's relevant.
I'm not sure how I can see if one of the graphics threads is crashed, as
you indicated... They all seem to be running, just blocked.
Other than those 5 threads (main thread with renderingTraversals() + 4
draw threads, one per context) there are 7 other threads in the process.
I can't see specifically what they're doing since they're all in
graphics driver code (more or less deeply).
(this all coincides with the stack traces I sent before, but I just
thought explaining it in words would help me understand eventually, and
perhaps others too)
J-S
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Re: [osg-users] DataVariance
When I change to SingleThreaded, I do not see the problem. The standard OSG examples work fine. Other cases of my problem also work fine. Clearly, it's something in this app that is causing problems. In the problem case, I'm rendering to two different image buffers and then reading the images out on the CPU. My scene is a normal scene except I have two cameras with each rendering to these different textures (i.e. a top and bottom view of the scene). I also have another camera rendering an orthogonal projection on top of the scene. Paul P. - Original Message From: Robert Osfield [EMAIL PROTECTED] To: OpenSceneGraph Users osg-users@lists.openscenegraph.org Sent: Wednesday, September 17, 2008 11:03:33 AM Subject: Re: [osg-users] DataVariance Hi Paul, I can't say why your app might be hanging. Do the standard OSG example hang on your machine? Try running the view single threaded as something that might at least flesh out whether threading is an issue at all. Robert. On Wed, Sep 17, 2008 at 3:52 PM, [EMAIL PROTECTED] wrote: Thanks for the quick response... Then, any idea why my application is hanging when I attempt to render my first frame?? Below is the call stack of the two OSG threads. The problem seems to exist when I include two different parts of my scene graph. My scene graph consists of two Camera's at the root. Each renders to a different image array (using camera-attach(..., image);). Each camera then has shared subgraphs attached which also contain a Camera node (for Ortho view for part of the scene) but with no attachments. The osgViewer's camera is unchanged (and I really don't need to render anything). Am I doing something wrong with these camera's? While I'm at it, one more questions: Is there a way to turn on the OSG statistics overlay without using the keyboard. I've added the StatsHandler event handler. With osgProducer, I used to be able to do viewerEventHandler-setFrameStatsMode(mode). Paul P. THREAD #1 #0 0x4146627d in pthread_cond_wait@@GLIBC_2.3.2 () from /lib/tls/libpthread.so.0 #1 0x41235a66 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib/tls/libc.so.6 #2 0x40b1e364 in OpenThreads::Condition::wait (this=0x8281f88, mutex=0x8281f80) at /src/OpenSceneGraph_2.6/OpenSceneGraph-2.6.0/src/OpenThreads/pthreads/PThreadCondition.c++:137 #3 0x40ad9241 in OpenThreads::BlockCount::block (this=0x8281f80) at Block:133 #4 0x40ad7506 in osgViewer::ViewerBase::renderingTraversals (this=0x827ab58) at /src/OpenSceneGraph_2.6/OpenSceneGraph-2.6.0/src/osgViewer/ViewerBase.cpp:733 #5 0x40ad6a88 in osgViewer::ViewerBase::frame (this=0x827ab58, simulationTime=0) at /src/OpenSceneGraph_2.6/OpenSceneGraph-2.6.0/src/osgViewer/ViewerBase.cpp:592 #6 0x080858a7 in MyViewer::frame (this=0x827aad8, simTime=0) at MyViewer.hpp:131 THREAD #2 #0 0x4146627d in pthread_cond_wait@@GLIBC_2.3.2 () from /lib/tls/libpthread.so.0 #1 0x41235a66 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib/tls/libc.so.6 #2 0x40b1e364 in OpenThreads::Condition::wait (this=0x82786dc, mutex=0x82786d4) at /src/OpenSceneGraph_2.6/OpenSceneGraph-2.6.0/src/OpenThreads/pthreads/PThreadCondition.c++:137 #3 0x400aedf5 in OpenThreads::Block::block (this=0x82786d4) at Block:42 #4 0x40a8cdc7 in osgViewer::Renderer::TheadSafeQueue::takeFront ( this=0x82786cc) at /src/OpenSceneGraph_2.6/OpenSceneGraph-2.6.0/src/osgViewer/Renderer.cpp:136 #5 0x40a8ee38 in osgViewer::Renderer::draw (this=0x8278640) at /src/OpenSceneGraph_2.6/OpenSceneGraph-2.6.0/src/osgViewer/Renderer.cpp:340 #6 0x40a9085e in osgViewer::Renderer::operator() (this=0x8278640, context=0x8272258) at /src/OpenSceneGraph_2.6/OpenSceneGraph-2.6.0/src/osgViewer/Renderer.cpp:640 #7 0x4086352d in osg::GraphicsContext::runOperations (this=0x8272258) at /src/OpenSceneGraph_2.6/OpenSceneGraph-2.6.0/src/osg/GraphicsContext.cpp:688 #8 0x4086c3ee in osg::RunOperations::operator() (this=0x829ea70, - context=0x8272258) at /src/OpenSceneGraph_2.6/OpenSceneGraph-2.6.0/src/osg/GraphicsThread.cpp:134 #9 0x4086bc7d in osg::GraphicsOperation::operator() (this=0x829ea70, object=Internal: global symbol `Object' found in RissAnimationPath.cpp psymtab but not in symtab. Object may be an inlined function, or may be a template function (if a template, try specifying an instantiation: Objecttype). ) at /src/OpenSceneGraph_2.6/OpenSceneGraph-2.6.0/src/osg/GraphicsThread.cpp:50 #10 0x408af928 in osg::OperationThread::run (this=0x829e810) at /src/OpenSceneGraph_2.6/OpenSceneGraph-2.6.0/src/osg/OperationThread.cpp:413 #11 0x4086bbf9 in osg::GraphicsThread::run (this=0x829e810) at /src/OpenSceneGraph_2.6/OpenSceneGraph-2.6.0/src/osg/GraphicsThread.cpp:38 #12 0x40b1d672 in OpenThreads::ThreadPrivateActions::StartThread ( data=0x829e820) at /src/OpenSceneGraph_2.6/OpenSceneGraph-2.6.0/src/OpenThreads/pthreads/PThread.c++:170
[osg-users] VR juggler OSG interaction
hello all, I am looking into interfacing OSG into VR juggler for immersive environment applications. I have read posts of mapping the vr juggler events to OSG and would like to duplicate that with additional functionality all which would be based in OSG. I am struggling to fill in the missing pieces. Does anyone have experience in doing this? I would like to work towards using OSG primarly with as little effort in VR juggler as possible. To be specific, how can I map the vrjuggler wand data and key events to the osg eventhandler overides correctly? Thanks in advance, Steve ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
[osg-users] Texture coordinates question
Gentlemen, Is there a way to force vertex B to have a different texture coordinate in each of triangle ABC and triangle BCD? Texture coordinate indices? I don't understand how those are applied. If the binding is per_primitive, will each of my triangles be textured by a single pixel? John Argentieri Software Engineer GENERAL DYNAMICS C4 Systems [EMAIL PROTECTED] This email message is for the sole use of the intended recipient(s) and may contain GDC4S confidential or privileged information. Any unauthorized review, use, disclosure or distribution is prohibited. If you are not an intended recipient, please contact the sender by reply email and destroy all copies of the original message. ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] 2Dimensional array
there is little mistake with this :
osg::ref_ptrosg::Vec3Array currentDataArray;
it should be :
osg::ref_ptrosg::Vec3Array currentDataArray = new osg::Vec3Array;
With this it should work.
Regards.
On Thu, Nov 20, 2008 at 8:05 PM, Ed [EMAIL PROTECTED] wrote:
So I could do something like this (in pseudocode)?
std::vector osg::ref_ptrosg::Vec3Array myData;
osg::Vec3f currentDataPoint;
Outerloop...{
osg::ref_ptrosg::Vec3Array currentDataArray;
Innerloop {
currentDataPoint.set(...);
currentDataArray-push_back(currentDataPoint);
}
myData.push_back(currentDataArray);
}
Ed
christophe loustaunau wrote:
Hi Ed,
Maybe you could use std::vectorosg::Vec3Array myArray .
Regards.
On Thu, Nov 20, 2008 at 7:46 PM, Ed [EMAIL PROTECTED] mailto:
[EMAIL PROTECTED] wrote:
I need to create a 2Dimensional array of Vec3f. I could do this
the ol'
osg::Vec3f **myArray
way, but wasn't sure if that is the way it should be done, as
opposed to osg::ref_ptr, etc. The I thought, maybe there is
already a class for 2Dimensional arrays...but I didn't find one.
Is there such a class?
Ed
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Re: [osg-users] Texture coordinates question
Argentieri, John-P63223 wrote: Gentlemen, Is there a way to force vertex B to have a different texture coordinate in each of triangle ABC and triangle BCD? Texture coordinate indices? I don't understand how those are applied. If the binding is per_primitive, will each of my triangles be textured by a single pixel? PER_PRIMITIVE texture coordinates aren't allowed (only PER_VERTEX, or none at all). Also, you don't want to use texture coordinate indices because they'll knock you into immediate mode (slow) rendering. The easy way to get what you're looking for is to have arrays like this: vertex array: vA, vB, vC, vB, vC, vD texcoord array: tA, tB1, tC, tB2, tC, tD where tB1 != tB2 and use a DrawArrays primitive set (ie: don't use DrawElements). In other words, just duplicate the vertex positions explicitly in your vertex array, and make the corresponding texture coordinates whatever you need them to be. --J ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] question about passive 3D stereo using polarized projectors and openscenegraph
Hi Jaime, The way I would do passive stereo with two projectors is to attach the projectors directly to the two outputs from the graphics card, and then use horizontal split stereo to drive them. The OSG supports this set up out of the box. Using this setup will avoid any need to use quad buffer stereo and the limits on hardware/drivers that it imposses, and it also the best way to drive such a system quality/performance wise. Actually, we have the same Cywiz/Xpo setup. The system works as a normal field-sequential system, the xpo boxes act as signal converters/demultiplexers converting the sequential video to two signals for the left and right projectors. So yes, you run this with a QUAD_BUFFER mode. The two outputs of a graphic card do not help, these walls have usually 4+ projectors with hardware blending. Jan signature.asc Description: This is a digitally signed message part. ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] question about passive 3D stereo using polarized projectors and openscenegraph
Hi Jaime, Hi everybody!! in my lab they want to re-use an old system composed by a Cyviz Stereo 3D Converter (xpo.2). It basically consists on a splitter which needs a frame-sequencial stereo source, and the output is two videos for two projectors (so passive stereo using polarized projectors glasses). I am quite new with this 3D stuff... I think I should use OSG_STEREO_MODE with the QUAD_BUFFER option. Yes, that is the correct setup for the this system (we have the Vizwall ourselves). My question is more about the graphics card required for that, do we need any special card for that? I have a laptop with a NVIDIA geforce 8700GT, do you think it is possible to use it like that? Nope. You need an Nvidia Quadro or ATI FireGL card that has the QUAD_BUFFER support and has also the special mini DIN 3-pin synchronization connector. The cable from that goes into the xpo boxes, without the sync you will not get stable stereo. The consumer cards (GeForce/Radeon) do not support neither the QUAD_BUFFER mode nor have the required hardware for the synchronization. Regards, Jan signature.asc Description: This is a digitally signed message part. ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
[osg-users] How to set the size of a point in osg?
Hi, I couldn't find any function to set the point size, can anyone help? Here is the code: osg::ref_ptrosg::Geometry averageGeom = new osg::Geometry(); averageGeom-addPrimitiveSet(new osg::DrawArrays(osg::PrimitiveSet:POINTS, 0, averageArray-size())); In this way, it will draw the points based on default size. While, is there any function that I can change the size to what I want? Thanks a lot! Ruqin ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] How to set the size of a point in osg?
Try something like this: averageGeom-getOrCreateStateSet()-setAttribute( new osg::Point( 3.0f ), osg::StateAttribute::ON ); Glenn Waldron : Pelican Mapping : http://pelicanmapping.com : +1.703.652.4791 On Thu, Nov 20, 2008 at 5:02 PM, Ruqin Zhang [EMAIL PROTECTED] wrote: Hi, I couldn't find any function to set the point size, can anyone help? Here is the code: osg::ref_ptrosg::Geometry averageGeom = new osg::Geometry(); averageGeom-addPrimitiveSet(new osg::DrawArrays(osg::PrimitiveSet:POINTS, 0, averageArray-size())); In this way, it will draw the points based on default size. While, is there any function that I can change the size to what I want? Thanks a lot! Ruqin ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
[osg-users] AutoTransform scaling precision.
Hello,
I am seeing some odd behavior with AutoTransform. The following .osg
file creates an AutoTransform with a grid of lines attached. The
lines are each separated by one unit of space. When I look at the
file in osgviewer, I see that this spacing is not kept. It looks like
the auto-scale is not exact. The imprecision seems to vary with
projection, viewport size, and on my windows dual-screen setup it
varies with monitor! If I make the window very wide and short, the
shape is scaled so much as to actually shrink significantly in screen
space.
Am I using the AutoTransform incorrectly? Am I expecting this to do
more than was intended?
Thanks,
Jonathon Marjamaa
AutoTransform {
UniqueID AutoTransform_0
nodeMask 0x
cullingActive TRUE
referenceFrame RELATIVE
position 0 0 0
rotation 0 0 0 1
scale 1 1 1
pivotPoint 0 0 0
autoUpdateEyeMovementTolerance 0
autoRotateMode ROTATE_TO_SCREEN
autoScaleToScreen TRUE
num_children 2
Geode {
UniqueID Geode_1
nodeMask 0x
cullingActive TRUE
num_drawables 2
Geometry {
useDisplayList TRUE
useVertexBufferObjects FALSE
VertexArray UniqueID Vec3Array_3 Vec3Array 200
{
0 0 0
0 150 0
0 0 0
150 0 0
2 0 0
2 150 0
0 2 0
150 2 0
4 0 0
4 150 0
0 4 0
150 4 0
6 0 0
6 150 0
0 6 0
150 6 0
8 0 0
8 150 0
0 8 0
150 8 0
10 0 0
10 150 0
0 10 0
150 10 0
12 0 0
12 150 0
0 12 0
150 12 0
14 0 0
14 150 0
0 14 0
150 14 0
16 0 0
16 150 0
0 16 0
150 16 0
18 0 0
18 150 0
0 18 0
150 18 0
20 0 0
20 150 0
0 20 0
150 20 0
22 0 0
22 150 0
0 22 0
150 22 0
24 0 0
24 150 0
0 24 0
150 24 0
26 0 0
26 150 0
0 26 0
150 26 0
28 0 0
28 150 0
0 28 0
150 28 0
30 0 0
30 150 0
0 30 0
150 30 0
32 0 0
32 150 0
0 32 0
150 32 0
34 0 0
34 150 0
0 34 0
150 34 0
36 0 0
36 150 0
0 36 0
150 36 0
38 0 0
38 150 0
0 38 0
150 38 0
40 0 0
40 150 0
0 40 0
150 40 0
42 0 0
42 150 0
0 42 0
150 42 0
44 0 0
44 150 0
0 44 0
150 44 0
46 0 0
46 150 0
0 46 0
150 46 0
48 0 0
48 150 0
0 48 0
150 48 0
50 0 0
50 150 0
0 50 0
150 50 0
52 0 0
52 150 0
0 52 0
150 52 0
54 0 0
54 150 0
0 54 0
150 54 0
56 0 0
56 150 0
0 56 0
150 56 0
58 0 0
58 150 0
0 58 0
150 58 0
60 0 0
60 150 0
0 60 0
150 60 0
62 0 0
62 150 0
0 62 0
150 62 0
64 0 0
64 150 0
0 64 0
150 64 0
66 0 0
66 150 0
0 66 0
150 66 0
68 0 0
68 150 0
0 68 0
150 68 0
70 0 0
70 150 0
0 70 0
150 70 0
72 0 0
72 150 0
0 72 0
150 72 0
74 0 0
74 150 0
0 74 0
150 74 0
76 0 0
76 150 0
0 76 0
150 76 0
78 0 0
78 150 0
0 78 0
150 78 0
80 0 0
80 150 0
0 80 0
150 80 0
82 0 0
82 150 0
0 82 0
150 82 0
84 0 0
84 150 0
0 84 0
150 84 0
86 0 0
86 150 0
0 86 0
150 86 0
88 0 0
88 150 0
0 88 0
150 88 0
90 0 0
90 150 0
0 90 0
150 90 0
92 0 0
92 150 0
0 92 0
150 92 0
94 0 0
94 150 0
0 94 0
150 94 0
96 0 0
96 150 0
0 96 0
150 96 0
98 0 0
98 150 0
0 98 0
150 98 0
100 0 0
100 150 0
0 100 0
150 100 0
}
VertexIndices UniqueID UShortArray_4 UShortArray 200
{
0 1 2 3 4 5 6 7 8 9
10 11 12 13 14 15 16 17 18 19
20 21 22 23 24 25 26 27 28 29
30 31 32 33 34 35 36 37 38 39
40 41 42 43 44 45 46 47 48 49
50 51 52 53 54 55 56 57 58
Re: [osg-users] How to set the size of a point in osg?
Just to be complete, you can also set it in the vertex shader by writing to gl_Pointsize; however, in that case, you have to enable GL_VERTEX_PROGRAM_POINT_SIZE by setMode(GL_VERTEX_PROGRAM_POINT_SIZE, osg:: StateAttribute::ON); on a stateset. Ruqin Zhang wrote: Hi, I couldn't find any function to set the point size, can anyone help? Here is the code: osg::ref_ptrosg::Geometry averageGeom = new osg::Geometry(); averageGeom-addPrimitiveSet(new osg::DrawArrays(osg::PrimitiveSet:POINTS, 0, averageArray-size())); In this way, it will draw the points based on default size. While, is there any function that I can change the size to what I want? Thanks a lot! Ruqin ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org -- Regards, Ferdi Smit INS3 Visualization and 3D Interfaces CWI Amsterdam, The Netherlands ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] CompositeViewer addView threading issue on Windows?
On Thu, Nov 20, 2008 at 8:12 PM, Jean-Sébastien Guay [EMAIL PROTECTED] wrote: When it hung, I had just created a 4th view (=4th context). Uncoincidentally, there are 4 threads on GraphicsThread::run(), which calls GraphicsContext::makeCurrent(), which calls GraphicsWindowWin32::makeCurrentImplementation, which is stuck on the wglMakeCurrent() call. One of those 4 is stuck in the middle of the graphics driver DLL, but I'm not sure that's relevant. Yes, exactly the same for me. And I am on linux. I wondered if simply calling cancel() on the threads is a good idea. I'd feel a lot better if the threads would check for an exit flag at a well-defined place. Could it be possible that one of the threads is inside the gl lib doing something and then it gets abruptly cancelled without releasing some critical resource? Of course the gl lib should make sure cancellation is disabled while inside such code, but who knows. Assuming a resource is left locked could explain why the makeCurrent is blocked - it might be (busy-)waiting on that very resource. Also, I have added a join() call after the cancel in GraphicsContext.cpp and Camera.cpp, that have the strange effect of completely locking up X and not just the test app. Robert's changed version doesn't seem to make a difference here. -- Csaba ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
[osg-users] Cameras a NON-Moving Terrain
Hi. Could someone tell me or point me in the direction of finding an example that illustrates how to move the camera in a scene but NOT make it appear that the terrain is moving? I want a perspective terrain w/in my scene and I want to move the camera through the scene but I DO NOT WANT it to appear that the Earth is moving when the user moves the mouse. I just can not figure this feat out. Can anyone help me? --Allen ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] How to set the size of a point in osg?
Thanks guys. Then how about Line? Seems there is no osg::Line. Thanks! On Thu, Nov 20, 2008 at 4:33 PM, Ferdi Smit [EMAIL PROTECTED] wrote: Just to be complete, you can also set it in the vertex shader by writing to gl_Pointsize; however, in that case, you have to enable GL_VERTEX_PROGRAM_POINT_SIZE by setMode(GL_VERTEX_PROGRAM_POINT_SIZE, osg:: StateAttribute::ON); on a stateset. Ruqin Zhang wrote: Hi, I couldn't find any function to set the point size, can anyone help? Here is the code: osg::ref_ptrosg::Geometry averageGeom = new osg::Geometry(); averageGeom-addPrimitiveSet(new osg::DrawArrays(osg::PrimitiveSet:POINTS, 0, averageArray-size())); In this way, it will draw the points based on default size. While, is there any function that I can change the size to what I want? Thanks a lot! Ruqin ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org -- Regards, Ferdi Smit INS3 Visualization and 3D Interfaces CWI Amsterdam, The Netherlands ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] Cameras a NON-Moving Terrain
Hi Allen, Do you mean you want a subgraph to appear as if it was at an infinite distance, such as for skyboxes? If so, you can try to create your own transform that removes the translation. That costs 4 lines of code (See http://pvle.sourceforge.net/Doc/Html/MoveWithEyePointTransform_8h-source.html for an example). You may also create a transform that removes rotation if needed. Sincerely, Sukender PVLE - Lightweight cross-platform game engine - http://pvle.sourceforge.net/ Le Thu, 20 Nov 2008 23:45:27 +0100, Allen [EMAIL PROTECTED] a écrit: Hi. Could someone tell me or point me in the direction of finding an example that illustrates how to move the camera in a scene but NOT make it appear that the terrain is moving? I want a perspective terrain w/in my scene and I want to move the camera through the scene but I DO NOT WANT it to appear that the Earth is moving when the user moves the mouse. I just can not figure this feat out. Can anyone help me? --Allen ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] How to set the size of a point in osg?
Look at osg::LineWidth Glenn Waldron : Pelican Mapping : http://pelicanmapping.com : +1.703.652.4791 On Thu, Nov 20, 2008 at 5:40 PM, Ruqin Zhang [EMAIL PROTECTED] wrote: Thanks guys. Then how about Line? Seems there is no osg::Line. Thanks! On Thu, Nov 20, 2008 at 4:33 PM, Ferdi Smit [EMAIL PROTECTED] wrote: Just to be complete, you can also set it in the vertex shader by writing to gl_Pointsize; however, in that case, you have to enable GL_VERTEX_PROGRAM_POINT_SIZE by setMode(GL_VERTEX_PROGRAM_POINT_SIZE, osg:: StateAttribute::ON); on a stateset. Ruqin Zhang wrote: Hi, I couldn't find any function to set the point size, can anyone help? Here is the code: osg::ref_ptrosg::Geometry averageGeom = new osg::Geometry(); averageGeom-addPrimitiveSet(new osg::DrawArrays(osg::PrimitiveSet:POINTS, 0, averageArray-size())); In this way, it will draw the points based on default size. While, is there any function that I can change the size to what I want? Thanks a lot! Ruqin ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org -- Regards, Ferdi Smit INS3 Visualization and 3D Interfaces CWI Amsterdam, The Netherlands ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] CompositeViewer addView threading issue on Windows?
On Thu, Nov 20, 2008 at 4:50 PM, Csaba Halász [EMAIL PROTECTED] wrote: On Thu, Nov 20, 2008 at 3:51 PM, Csaba Halász [EMAIL PROTECTED] wrote: I wonder if I can try to use software rendering to see if it makes a difference. I have run it with mesa in a nested x server, no hangs. After each added view, however, I got a single Warning: detected OpenGL error 'invalid operation' after RenderBin::draw(,) message (ie. *not* every frame). Don't know if that is relevant. Also, the software rendering might be too slow to produce the problem. Anybody got some further suggestions? I think the intel driver is entirely open-source, can somebody try with that? That should at least point to where the rogue thread is spinning. Assuming it exhibits the same behaviour. -- Csaba ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
[osg-users] Cameras Non-Moving Terrain
Hi Sukender, :-) Well, what I want is the ability to have the terrain to appear to remain still while I move the camera around on it. The glider example and the animate example are what I'm basing my research/work on and in both cases, when the camera moves it appears that the object I'm looking at is actually moving and not the camera. So, I must be able to move through the terrain like the TrackballManipulator allows but move the camera and leave the terrain still. Is this any clearer? I've looked W the link you provided but I've NO clue as to how to use what you are suggesting. I'm too much a newbie to 3d Visualization - about 1.5 yrs worth - to understand what you're referring to. If you know of any example(s) that I could look @ and copy, that would be awesome!!! Do you know of or have any? Message: 5 Date: Thu, 20 Nov 2008 23:51:03 +0100 From: Sukender [EMAIL PROTECTED] Subject: Re: [osg-users] Cameras a NON-Moving Terrain To: OpenSceneGraph Users osg-users@lists.openscenegraph.org Message-ID: [EMAIL PROTECTED] Content-Type: text/plain; charset=iso-8859-15 Hi Allen, Do you mean you want a subgraph to appear as if it was at an infinite distance, such as for skyboxes? If so, you can try to create your own transform that removes the translation. That costs 4 lines of code (See http://pvle.sourceforge.net/Doc/Html/MoveWithEyePointTransform_8h-source.html for an example). You may also create a transform that removes rotation if needed. Sincerely, Sukender PVLE - Lightweight cross-platform game engine - http://pvle.sourceforge.net/ Le Thu, 20 Nov 2008 23:45:27 +0100, Allen [EMAIL PROTECTED] a ?crit: Hi. Could someone tell me or point me in the direction of finding an example that illustrates how to move the camera in a scene but NOT make it appear that the terrain is moving? I want a perspective terrain w/in my scene and I want to move the camera through the scene but I DO NOT WANT it to appear that the Earth is moving when the user moves the mouse. I just can not figure this feat out. Can anyone help me? --Allen ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] Dual screen support on Linux using TwinView
Hey Robert We have 2 separate logical views (I guess). Essentially we have 2 projectors that can each be placed at any location and orientation in the room and they project onto objects in the room. This is not a tiled display, and we are not worried about overlap. We are also doing some render to texture operations which is why we have different views. Each monitor output is driving a single projector. So, we have 2 projectors and a couple of RTT cameras. The projectors have their own projection and view matrices, but share the same scene graph data for drawing. One of the projectors does shadow removal for the other one, so we need to control the render order. So, we need each monitor output to drive one of our views for the projector, using the 1 graphics context. I appreciate the help (and patience!) Cheers Michael On Thu, Nov 20, 2008 at 7:38 PM, Robert Osfield [EMAIL PROTECTED]wrote: Hi Michael, On Thu, Nov 20, 2008 at 12:09 AM, Michael [EMAIL PROTECTED] wrote: This fails on the second display because OSG can't connect to screen 0:1, because there is only 1 xscreen. Clearly I am doing this wrong, but I'm not sure of the correct way. If you have only only X screen then you'll only be able to open up a window on that one... so you'll need to use the screenNum set to 0 fro both contexts, or Something like this? 1. Create a single GraphicsContext on screen 0, with width=2048 (both displays) 2. Create my views, and somehow tell each one to only render on half of the context? If you a grabbing the whole of both displays I would create a single graphics context that goes across both physical displays. Otherwise you'll need to create two graphics contexts on the same X11 screenNum but with the second window starting at a xpos of 1024. Now what to do about the views depends upon you actual needs. Do you have two separate logical views of doing you have single view that is just made up of two cameras (like looking out of two adjacent real-world windows that share the same view). If you have only single view, then do the two halves of it but up against each other or do they overlap? Could you have a bash at explain what you are specifically trying to achieve as the advice to give is different for all the different cases. Robert. ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
[osg-users] Two VirtualPlanetBuilder problems
I have a very large imagery set (~1 million files). When running VirtualPlanetBuilder 0.9.9, I am limited to about 482 -t imagery files for a given vpbmaster command before I get ERROR 4: Failed to open file /mp2/osg/file482.tif for each -t file listed after the 482nd file listed in the script and the *.ive files are not created. The command I am using is: vpbmaster --PagedLOD --geocentric --terrain -e 30.00 20.00 1.00 1.00 -o 30_20.ive Running with the -t option pointing to the directory results in the same error. What do I need to open up to allow more files to be processed per vpbmaster run? Secondly, a test of a small VPB database of 1.34GB of CADRG imagery produced 14.941GB of *.ive files using VPB 0.9.7 in 23 minutes time. The same test with VPB Version 0.9.9 produced 14.826GB of *.ive files in 32 minutes. I was not expecting the newer VPB to only produce a tiny (1%) amount of compression, while taking about 40% more time. Furthermore, I'm perplexed that my resulting output files are 11 times the input imagery (1m black and white Controlled Imagery Base). Using the --compressed option made no difference to the resulting *.ive sizes. I require all levels of detail, so expect some increase in database size, but can anybody help me reduce this to a smaller multiple as I'm running out of disk space! What do I need to do to turn on Heightfield compression, for example. Robert Kramer ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] Cameras Non-Moving Terrain
the norm is to move the camera/view point and not the terrain ( the track ball is designed to look at a model rather then move around ) See motion models such as drive and fly ( in DriveManipulator.cpp and FlightManipulator ) Also see the tutorials' section http://www.openscenegraph.org/projects/osg/wiki/Support/Tutorials See Paul's quick start guide http://www.osgbooks.com/books/osg_qs.html __ Gordon Tomlinson [EMAIL PROTECTED] IM: [EMAIL PROTECTED] www.vis-sim.com www.gordontomlinson.com __ -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Allen Sent: Thursday, November 20, 2008 6:45 PM To: osg-users@lists.openscenegraph.org Subject: [osg-users] Cameras Non-Moving Terrain Hi Sukender, :-) Well, what I want is the ability to have the terrain to appear to remain still while I move the camera around on it. The glider example and the animate example are what I'm basing my research/work on and in both cases, when the camera moves it appears that the object I'm looking at is actually moving and not the camera. So, I must be able to move through the terrain like the TrackballManipulator allows but move the camera and leave the terrain still. Is this any clearer? I've looked W the link you provided but I've NO clue as to how to use what you are suggesting. I'm too much a newbie to 3d Visualization - about 1.5 yrs worth - to understand what you're referring to. If you know of any example(s) that I could look @ and copy, that would be awesome!!! Do you know of or have any? Message: 5 Date: Thu, 20 Nov 2008 23:51:03 +0100 From: Sukender [EMAIL PROTECTED] Subject: Re: [osg-users] Cameras a NON-Moving Terrain To: OpenSceneGraph Users osg-users@lists.openscenegraph.org Message-ID: [EMAIL PROTECTED] Content-Type: text/plain; charset=iso-8859-15 Hi Allen, Do you mean you want a subgraph to appear as if it was at an infinite distance, such as for skyboxes? If so, you can try to create your own transform that removes the translation. That costs 4 lines of code (See http://pvle.sourceforge.net/Doc/Html/MoveWithEyePointTransform_8h-source.htm l for an example). You may also create a transform that removes rotation if needed. Sincerely, Sukender PVLE - Lightweight cross-platform game engine - http://pvle.sourceforge.net/ Le Thu, 20 Nov 2008 23:45:27 +0100, Allen [EMAIL PROTECTED] a ?crit: Hi. Could someone tell me or point me in the direction of finding an example that illustrates how to move the camera in a scene but NOT make it appear that the terrain is moving? I want a perspective terrain w/in my scene and I want to move the camera through the scene but I DO NOT WANT it to appear that the Earth is moving when the user moves the mouse. I just can not figure this feat out. Can anyone help me? --Allen ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] Two VirtualPlanetBuilder problems
Hi, what operating system are you running on? Kramer, Robert W wrote: I have a very large imagery set (~1 million files). When running VirtualPlanetBuilder 0.9.9, I am limited to about 482 -t imagery files for a given vpbmaster command before I get ERROR 4: Failed to open file /mp2/osg/file482.tif for each -t file listed after the 482nd file listed in the script and the *.ive files are not created. The command I am using is: vpbmaster --PagedLOD --geocentric --terrain -e 30.00 20.00 1.00 1.00 -o 30_20.ive Running with the -t option pointing to the directory results in the same error. The -t directory is what I also use normally. I've just checked the dirs for a previous build and I have -t pointing to a dir with 1900 files and it worked under Linux. What do I need to open up to allow more files to be processed per vpbmaster run? Not sure there is a special option that will make it work. Maybe you can try splitting the files into multiple dirs you pass to -t? Secondly, a test of a small VPB database of 1.34GB of CADRG imagery produced 14.941GB of *.ive files using VPB 0.9.7 in 23 minutes time. The same test with VPB Version 0.9.9 produced 14.826GB of *.ive files in 32 minutes. I was not expecting the newer VPB to only produce a tiny (1%) amount of compression, while taking about 40% more time. Furthermore, I'm perplexed that my resulting output files are 11 times the input imagery (1m black and white Controlled Imagery Base). Using the --compressed option made no difference to the resulting *.ive sizes. I require all levels of detail, so expect some increase in database size, but can anybody help me reduce this to a smaller multiple as I'm running out of disk space! What do I need to do to turn on Heightfield compression, for example. Robert O talked about some new gz compression in a recent thread, so if he could post the command line he used, that might help reduce the size. jp Robert Kramer ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org -- This message is subject to the CSIR's copyright terms and conditions, e-mail legal notice, and implemented Open Document Format (ODF) standard. The full disclaimer details can be found at http://www.csir.co.za/disclaimer.html. This message has been scanned for viruses and dangerous content by MailScanner, and is believed to be clean. MailScanner thanks Transtec Computers for their support. ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
