Re: [osg-users] OSG + Qt4.5 + Textures

Thanks Roland, in fact I didn't realize the emoticon has different meaning than look. Sorry about that, I'm not shocked at all, just curiously waiting if someone may have time/knowledge/whatever it takes... to answer my question, which will pop up more and more times from others as well,

[osg-users] Picking, how to identify object?

Hi, Im using the code from osgpick example. How do I identify the object being picked as refering to it by name has little use. Can I assign some user data to the objects such as an id? or extra information Thank you. -- Read this topic online here:

Re: [osg-users] [build] osgdb_freetype build problem on Mac OS/X 10.5.6

Hi Jaeyong, Sounds like you have Inventor installed on your system so the OSG's Cmake build system is picking up on this and enabling the build of the Inventor plugin (to be able to read .iv and .wrl files.) Alas once the build start going on this plugin it compiles by fails on link due to the

Re: [osg-users] Rendering transparent/opaque objects separately in deferred renderer using osg::RenderBin - how?

HI Jirka, Post processing generated the RenderStage/RenderBin's after the cull traversals has complete on a subgraph can be a useful way to manage techniques like your are suggesting, it does require you to understand the details of the rendering backend though so it's not something I would

Re: [osg-users] Fwd: shader implementation - newbie

Hi Sajjad, A lot has been written about shaders and OSG over the years, so rather than me waste time going over old ground please could you search the archives. Robert. On Mon, Apr 27, 2009 at 2:47 AM, ami guru dosto.wa...@gmail.com wrote: Hello Robert, After going through several source

Re: [osg-users] [osgPlugins] Failed to read unsigned int value??

Hi Akilan, It might be that your .ive database was built from a different version of the OSG than your OSG version. The OSG is now at 2.8, is there a reason why you are using 2.2 over 2.8, the later has many bug fixes applied to it over 2.2 as well as more refined API and functionality. Robert.

Re: [osg-users] Projective texture mapping with occluders/ visibility computation

Hi all, I beg your pardon for being that boring, but no one's got a solution for this? Max wrote: 3)It seems I can't do the PTM using osg::TextureRectangle but osg::Texture2D works. I'm running OpenSceneGraph 2.6 maybe this have been fixed since that version. Thus I need to know the new

Re: [osg-users] Picking, how to identify object?

hi Paul You have an UserData property in osg::Object and so in osg::Node by inheritance. You can assign any osg::Referenced based class to it. Another solution could be to use std::mapID, osg::ref_ptrosg::Node or boost::bimapID, osg::ref_ptrosg::Node HTH David 2009/4/27 Paul

Re: [osg-users] Rendering transparent/opaque objects separately in deferred renderer using osg::RenderBin - how?

Thank you, Robert, for your advice, I appreciate it. I'll probably take the cull traversal mask approach, since I don't have much spare time and it seems easier to implement. I'll post my results as soon as I have them if someone else deals with the same problem. Regards, Jirka.

[osg-users] Multiple screens

Hi all, I know this issue has been discussed a lot. I just started to play with multiple screen (two screens) I tried the examples (osgcompositeviewer, osgviewer, osgcamera) with the different command arguments. I use osg2.8 have NVIDIA 8800, windows XP and just installed the latest

[osg-users] OpenSceneGraph always opening in fullscreen on Intel integrated graphics.

Hi all (again), and thanks for your help in the past. We have now shipped an application using OpenSceneGraph for the 3D viewports of a model. We are now receiving a couple of bug-reports (2 so far) from users running the application on laptops with Intel integrated graphics (GMA 950 and

Re: [osg-users] OpenSceneGraph always opening in fullscreen on Intel integrated graphics.

Hi Jesper; As I can see from attached codes you didn't used traits-samples = (any int value); but you may be set multisampling in your code from using osg::DisplaySettings* ds = new osg::DisplaySettings(); ds-setNumMultiSamples( 4 ); or osgUtil namespaces function(I have forgotten the name of

Re: [osg-users] OpenSceneGraph always opening in fullscreen on Intel integrated graphics.

Hi, I'm not currently using multisampling in the window, as we have an option in the application where we can switch to an older OpenGL renderer for the viewport, and this older implementation doesn't like multisampling. I'm however not having any problems with OpenGL state, as I don't use any

Re: [osg-users] Projective texture mapping with occluders/visibility computation

Hi Max, I'm not sure, but when you run your program, can't you see a line like : Scaling image '../Data_Calibrage/Image/IMG_5316_small.jpg' from 640,480 to 512,512 ? Otherwise, to do projective texture mapping, personaly I'm using shaders since I have back projection problems with OpenGl

Re: [osg-users] Is polygon on screen

drorlawa : OSG is very different from Vega Prime. frankly the only thing I miss in OSG is the LynX editor you have with Vega Prime. I believe someday such editor will be added to OSG. To your question, afte you setup osgUtil::PolytopeIntersector to you r entire screen you will get all the

Re: [osg-users] OpenSceneGraph-2.9.4 dev release tagged

I compiled OpenSceneGraph 2.9.4 on window XP and linux (RHEL4) with QT 4.5.1 . Tried out osgViewerQT. I get a crash on both platform with the following command: osgviewerQT --QOSGWidget cow.osg --MTCompositeViewer (Segmentation fault) (This command works fine with QT 4.5.1 in combination with

[osg-users] The normal of my screen

Hi, If I want to know the normal of my screen (for lighting issues) does using viewer.getCamera-getViewMatrixAsLookAt(eye,center,up) will give it to me as 'eye'?? Thank you. -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=10906#10906

Re: [osg-users] OSG + Qt4.5 + Textures

Hi all, I hope this will help many in the future, I figured out the missing piece for this case. Code: void MyWidget::paintGL() { glMatrixMode(GL_PROJECTION); glPushMatrix(); glLoadIdentity(); glMatrixMode(GL_MODELVIEW); glPushMatrix(); glLoadIdentity();

Re: [osg-users] The normal of my screen

I am not sure about matrix layout convention used in OSG, but if it uses OpenGL convention you can take third row of camera's view matrix (or third column otherwise). PS. Supposing that row (column) index starts with 1. 2009/4/27 Mangu Liok mangul...@yahoo.com Hi, If I want to know the

Re: [osg-users] The normal of my screen

HI Mangu? Liok? Could you please sign your posts with your name so we know how to address you. On Mon, Apr 27, 2009 at 12:00 PM, Mangu Liok mangul...@yahoo.com wrote: Hi, If I want to know the normal of my screen (for lighting issues) does using

[osg-users] Use the mouse scroll button?

Hello, I'm trying to use the mouse scroll button as if it was the right mouse button. All I want to do is move the camera closer and further with the mouse scroll button... The problem is that I don't receive the events by just moving the scroll. In order to get the event I need to press a button

Re: [osg-users] On demand and frame rate capping schemes from Viewer::run()

Robert, Good stuff.Limit frame rate (ie, frame rate capping) is good. But how about Fixed frame rate though? Where the OSG renders at a specified frame rate no matter what. Thanks, Brett Robert Osfield wrote: Hi All, When following up on a bug report about the pager not handling on

Re: [osg-users] determine record type from OpenFlight files?

I haven't looked at how DescriptionList is used in other parts of OSG, but my thought was to use it with a key prefix, so the record type and other metadata would be stored like OpenFlight_Record=Geometry or OpenFlight_Record=Road or OpenFlight_isTerrain=True. To avoid the problem you

Re: [osg-users] Use the mouse scroll button?

Hi Julio, The TrackballManipulator now has support for mouse wheel, but as it was added in March you'll need to grab one of the 2.9.x dev release series or svn/trunk to get access to it. Potentially you could backport it to the version of the OSG you are using if it's not one of the above.

Re: [osg-users] On demand and frame rate capping schemes from Viewer::run()

Hi Brett, On Mon, Apr 27, 2009 at 3:35 PM, brettwiesner brettwies...@gmail.com wrote: Good stuff.Limit frame rate (ie, frame rate capping) is good. But how about Fixed frame rate though? Where the OSG renders at a specified frame rate no matter what. It all depends on exactly you mean by no

Re: [osg-users] determine record type from OpenFlight files?

Using a keyword in the description string would allow the exporter to filter these strings out before writing Comment records. Great idea. Back when I first started using OSG, I suggested replacing the current UserData and DescriptionList mechanisms with some type of key-value std::map based

[osg-users] setCursor problem

Hi, I've seen some discussions about the mouse cursor, but it doesn't answer my question. How can I set a cursor with the function setCursor. When I make a setCursor : Code: osgViewer::GraphicsWindow::MouseCursor mouseCursor; mouseCursor = osgViewer::GraphicsWindow::DestroyCursor;

Re: [osg-users] OpenSceneGraph-2.8.1 release candidate three tagged

RC3 seems OK to me on Win32, linux 64, and Intel mac 32. thanks, andy -Original Message- From: osg-users-boun...@lists.openscenegraph.org [mailto:osg-users-boun...@lists.openscenegraph.org] On Behalf Of Robert Osfield Sent: Thursday, April 23, 2009 10:41 AM To: OpenSceneGraph Users

Re: [osg-users] setCursor problem

Hi Romain, if you followed the thread I initiated on osg-submissions list, you'd realize that the current code can only show the left arrow. So in other words, don't change your code, and apply the patches I submitted. I am sure Robert will take care of this soon. Regards, -Fred - Romain

Re: [osg-users] determine record type from OpenFlight files?

On Mon, Apr 27, 2009 at 4:08 PM, Paul Martz pma...@skew-matrix.com wrote: Using a keyword in the description string would allow the exporter to filter these strings out before writing Comment records. Great idea. Back when I first started using OSG, I suggested replacing the current UserData

[osg-users] 'setGLExtensionsFuncPtr': identifier not found

Hi Robert, Your checkin to src/osg/GLExtensions.cpp today is missing something I guess, because I'm getting the following errors trying to compile: 1..\..\..\src\osg\GLExtensions.cpp(115) : error C3861: 'setGLExtensionsFuncPtr': identifier not found 1..\..\..\src\osg\GLExtensions.cpp(119) :

Re: [osg-users] 'setGLExtensionsFuncPtr': identifier not found

Hi J-S, Sorry about this. Trying to fix Windows build warnings reported on CDash remotely and without the ability to directly test... looks like I made typo in the function name. I've now fixed this typo, hopefully it'll now work. Could you do an svn update? Robert. On Mon, Apr 27, 2009 at

Re: [osg-users] 'setGLExtensionsFuncPtr': identifier not found

Hi Robert, Sorry about this. Trying to fix Windows build warnings reported on CDash remotely and without the ability to directly test... looks like I made typo in the function name. I've now fixed this typo, hopefully it'll now work. Could you do an svn update? Yep, that did it, thanks.

[osg-users] using AABB instead of bounding sphere for intersection tests?

Is there a way to use an axis-aligned bounding box (AABB) for the coarse bounding volume rather bounding spheres, for line segment intersections? In my application my primary geometry is made up of terrain tiles which are naturally axis aligned and buildings which tend to be rectangular

Re: [osg-users] [build] osgdb_freetype build problem on Mac OS/X 10.5.6

Thanks robertosfield, it works. -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=10925#10925 ___ osg-users mailing list osg-users@lists.openscenegraph.org

Re: [osg-users] using AABB instead of bounding sphere for intersection tests?

Hello Peter, In both cases, my intuition is that even the worst-case AABB is still going to represent a much tighter bound than the best-case bounding sphere, leading to unnecessary and expensive tests against the actual geometry. Actually, the osg::Node hierarchy uses bounding spheres, but

Re: [osg-users] using AABB instead of bounding sphere for intersection tests?

Peter Amstutz wrote: Is there a way to use an axis-aligned bounding box (AABB) for the coarse bounding volume rather bounding spheres, for line segment intersections? In my application my primary geometry is made up of terrain tiles which are naturally axis aligned and buildings which tend

Re: [osg-users] Public ffmpeg plugin testing streams

Hello Tanguy, FFmpegDecoder.cpp : - bool FFmpegDecoder::readNextPacketNormal() [Line 246 to 308] - bool FFmpegDecoder::readNextPacketEndOfStream() [Line 312 to 320] More precisely, I wonder about the API validity of the following code in the case of a streaming video. FFmpeg documentation

Re: [osg-users] The normal of my screen

Thank you, I miss-calculated the normal so I wasn't sure about it. now it works. I tried some croos product but a simple 'center - eye' did the work. thank you Robert. If the the center is what I look at, so basically it's the normal of the plane ( described by the screen) isn't it?? Mangu

Re: [osg-users] The normal of my screen

Hi Mangu, If the the center is what I look at, so basically it's the normal of the plane ( described by the screen) isn't it?? Both eye and center are points, not vectors. So center can't be the normal of the screen's plane... (center - eye).normalize() is. J-S --

[osg-users] Point matching / Affine transforms

I need to align two data sets in OSG by fitting a small number of key points and calculating the translation/rotation matrices. Normally this is done with a Helmert transform, that defines 7 parameters (xyz translate, xyz rotate, linear scale) to convert between map coordinates. GDAL seems to

[osg-users] Using osgWidget Only On one display In Multiple Display Setup

Hi All, I am running my application on multiple displays (0.0 0.1). I am using two slave cameras for rendering on to both the displays. The GUI of the application is written using osgWidget. When I run my application the same menu is replicated on both the displays. Is it possible to render

[osg-users] PagedLOD

Hello, I'm using PagedLOD to load terrain tiles off disk. The problem I have is that before I want the tile to actually render, I want to do a setup of the tile (to look up certain control nodes and set switches according to the current state of the system (eg: day/night mode, etc)). So on

Re: [osg-users] PagedLOD

Alan Ott wrote on Monday, April 27, 2009 4:40 PM: I'm using PagedLOD to load terrain tiles off disk. The problem I have is that before I want the tile to actually render, I want to do a setup of the tile (to look up certain control nodes and set switches according to the current state of the

[osg-users] Shaders on Slave Cameras

Folks, I want to render slave cameras with different shaders. It doesn't seem to work (osg 2.2). They are all rendered the same way as the main camera. Can I do this? Brian ___ osg-users mailing list osg-users@lists.openscenegraph.org

[osg-users] Multiple Shaders Performance Question

I have multiple shaders. I attach one shader to the root of the scene graph. I then load in objects and attach one of another set of shaders to the root of the object and attach it to the main scene graph. When I say attach a shader, I'm loading a fragment and vertex shader from a file and

[osg-users] osgEphemeris skyDome issue

Sorry for posting this here on osg-users, the osgEphemeris List is rather quiet. My understanding was that the skyDome centre would always be the camera eye point - however having tried setSkyDomeCenter at init and calling it every frame the user can still traverse outside the skydome.

[osg-users] [build] error: add_dependencies Adding dependency to non-existent target

Hi, i am trying o add dependency but when i do that it gives add_dependencies Adding dependency to non-existent target:pluginTest I am using: add_dependencies(pluginTest N3DApp) plz help!! :? ... Thank you. -- Read this topic online here:

Re: [osg-users] Using osgWidget Only On one display In Multiple Display Setup

See the FAQ http://www.openscenegraph.org/projects/osg/wiki/Support/FAQ See the answer to question: I have two or more views sharing a scene graph, but I want to limit what part of the scene graph is shown in one or more of the views. How do I do that? -- Roland -- Read