Re: [osg-users] [vpb] resuming vpb build, revisited :)

Hi, On 08/06/10 17:52, Felix Morsdorf wrote: Dear all, I am a happy (and thus mostly quite user) of OSG since a number of years but now have run into a problem with VPB: when generating a Pagedlod database with 10 subtiles regions, it will use the eight cores of my mac pro and build these

Re: [osg-users] DatabasePager performance problem

Hi Dieter, On Tue, Jun 8, 2010 at 4:52 PM, PFEFFER Dieter In my terrain database I use satellite images and a generic water texture. In the highest LOD I can see many tiles which have all the same water texture (512x512); I suppose this texture, although it is identically for all water tiles,

Re: [osg-users] physics and terrain

Hi, think it's Paul Martz that did it: http://code.google.com/p/osgbullet/ jp On 09/06/10 01:11, Martin Naylor wrote: Hello, I must have unconsciously read that somewhere. I didn't even know Bullet existed, not alone osgBullet ;) Cheers Martin. -Original Message- From:

Re: [osg-users] [vpb] resuming vpb build, revisited :)

Hi Felix, Using the all the cores on a the master is a fallback for when you do provide any information about the machines you want to use. To specify the machine setup you use the --machine mylocal.machines, then set mylocal.machines to: Machine { hostname localhost processes 4 } Then

Re: [osg-users] DataPager issue

Hi Thomas, You aren't specific about which version of the OSG you are talking about so it's difficult to give any specific advice. The best I can suggest is that svn/trunk has a number of bug fixes/improvements to DatabasePager that would make it worthy of updating to. Robert. On Wed, Jun 9,

Re: [osg-users] DataPager issue

hi, I was using the last trunk version of today ( i dont have the version number right now ...) something really weird was happening because even by using a osgviewer and setting a large file the datapager was not working and was increasing the memory ... after removing the environment

Re: [osg-users] [osgPlugins] FBX plugin: transparency and reflection maps...

This was just a bug brought in with the 3D Studio Max texturing features. Now fixed :) On 8 June 2010 09:08, Alessandro Terenzi a.tere...@gmail.com wrote: I'm trying the FBX plugin with some models with more than one material applied to a single mesh. I created a box and assigned it a

[osg-users] Camera highlighting

Hi all, I need to set up two cameras in my scene and highlight the region seen by a particular camera when seen thru the other camera. Is there a simple way to do it? Thanks, Nikhil -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=28719#28719

Re: [osg-users] FBX Plugin: vertex animation support

Hi, as you know I wanted to try to add the possibility to read vertex animation data from point cache files, so I started looking at existing code in order to figure out where the integrations should be done. I have really basic experience with animations in OSG, so I'd like to share my ideas with

Re: [osg-users] [osgPlugins] FBX plugin: transparency and reflection maps...

Great! Cheers. Alessandro On Wed, Jun 9, 2010 at 11:14 AM, Michael Platings mplati...@gmail.comwrote: This was just a bug brought in with the 3D Studio Max texturing features. Now fixed :) On 8 June 2010 09:08, Alessandro Terenzi a.tere...@gmail.com wrote: I'm trying the FBX plugin with

Re: [osg-users] [osgPlugins] FBX plugin: transparency and reflection maps...

Hi guys, With great interest I am reading all the FBX related threads. I picked it myself and the first tests are working well. Thanks for your efforts! Michael, you mention 3D Studio Max... Which version are you using? I have 3dsmax8 and 9 so I wonder if I can use these too. Thanks

Re: [osg-users] Strange error only in debug mode

Thank you, I understand but how can I disable this VC errors? Are an OSG bug? Another error that breaks also in NodeCallback function is Access violation reading location 0xcdcdcdcd. -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=28726#28726

Re: [osg-users] [osgPlugins] FBX plugin: transparency and reflection maps...

Hi Raymond, I'm not using 3D Studio but the plugin should read FBX files exported from any version of any application. The test I apply is this - if the official Autodesk FBX Quicktime Viewer can view an FBX file, OpenSceneGraph should be able to view it just as well or better. For the majority of

Re: [osg-users] FBX Plugin: vertex animation support

Thanks for your research Alessandro :) Vertex caches sound like just another way to store morph geometry. osgAnimation::MorphGeometry is just a series of 1 or more geometries (each one stored in a MorphTarget) so in theory it should be as simple as loading each bit of vertex cache geometry into a

Re: [osg-users] Strange error only in debug mode

daniele argiolas writes: Thank you, I understand but how can I disable this VC errors? Are an OSG bug? You'd better not do that, because they point errors in *your* code. OSG is accesing a node that you might have deleted from the heap. It could work in Release mode because freed memory might

Re: [osg-users] [osgPlugins] FBX plugin: transparency and reflection maps...

Hi Michael, Ok, I understand, thnx. I will try it out. Cheers Raymond On 6/9/2010 12:13 PM, Michael Platings wrote: Hi Raymond, I'm not using 3D Studio but the plugin should read FBX files exported from any version of any application. The test I apply is this - if the official Autodesk FBX

[osg-users] Reduce size of Texture with respect to Viewport

Hi All, How Can I display image or texture very small with respect to viewport Size . regards, Nitin ___ osg-users mailing list osg-users@lists.openscenegraph.org

Re: [osg-users] Camera highlighting

it is a 3d region thanks for the info -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=28734#28734 ___ osg-users mailing list osg-users@lists.openscenegraph.org

Re: [osg-users] [osgPlugins] Porting FFMpeg to OSG 2.8.2

Hello Vincent, I was wondering if anyone has tried back porting ffmpeg to 2.8.2? Please advise. We have used the ffmpeg plugin in OSG versions as old as 2.6 without problems (at least none I can recall now, so if we had any problems they must have been easy to fix). In theory all you

[osg-users] Using osgAnimation for material animation?

Hi everyone, I would like to find a way to animate my material (amb, diff, spec, emiss), and more specifically for now: the alpha component. Now that osgAnimation is very useful I would like to implement this via osgAnimation. In the examples (svn) I don't see an example, or else I am

Re: [osg-users] Using osgAnimation for material animation?

Hi, Have a look to the nathan.osg example file, one of the animations animates the material. Cheers, On Wed, Jun 9, 2010 at 2:48 PM, Raymond de Vries ree...@xs4all.nl wrote: Hi everyone, I would like to find a way to animate my material (amb, diff, spec, emiss), and more specifically for

Re: [osg-users] Using osgAnimation for material animation?

Hi, Ah, I did take a look at nathan but not close enough, obviously... Any idea how to get it from 3dsmax? thnx Raymond On 6/9/2010 2:51 PM, Serge Lages wrote: Hi, Have a look to the nathan.osg example file, one of the animations animates the material. Cheers, On Wed, Jun 9, 2010 at

[osg-users] Read texels from texture in GPU memory

Hi all! I am currently rendering to a texture by attaching it to a camera as Camera::COLOR_BUFFER. Now I want to read data back to the CPU from this texture. I have looked at the examples and examined the forum, but I still don't understand how to do this. Can anyone please point me to the

Re: [osg-users] DatabasePager performance problem

Thanks Robert, you are right - the duplicate texture cannot be the problem. I will check the database structure. I guess that the water tiles are not paged. Dieter -Original Message- From: osg-users-boun...@lists.openscenegraph.org

Re: [osg-users] Read texels from texture in GPU memory

glReadPixels is one way you have to call something like glDrawBuffer (GL_COLOR_ATTACHMENT0_EXT); when with FBO's I think ( along time since I have done this ) Gordon Tomlinson Product Manager 3d Technology Project Wyvern Overwatch(r) An Operating Unit of Textron Systems -Original

Re: [osg-users] Read texels from texture in GPU memory

Hi Martin, you can look at the osgprerender example when use_image is set. You attach an image to the camera and read the image data in a postdraw callback -Fred - Martin Aasen a écrit : Hi all! I am currently rendering to a texture by attaching it to a camera as

[osg-users] old QOSGWidget and new trunk Manipulators : mouse event problem

Hi all, I'm using an old version of a CompositeViewerQOSG and QOSGWidget, modified for my needs, and as I switched to OSG trunk version to have good fbx animation behavior, my NodeTrackerManipulators seems to not receive mouse events at all... I see that a lot of changes have been made on

[osg-users] ffmpeg synchronisation

I've been playing around with the ffmpeg plugin and I've been very impressed with how capable it is. The only problem I have with it is that its playback speed is decoupled from the timing of the main scene. Does anyone know of an easy way to ensure that the time of the ffmpeg video is consistent

Re: [osg-users] Read texels from texture in GPU memory

Hi, Thanks for the replies, guys! I think we are on to something, but I have to make myself a bit more clear. What I want is a function like float getSample(Texture2D* tex, Vec2 pos), which will return the float value stored in tex at pos (tex is a float 32 texture with one component) on

Re: [osg-users] Read texels from texture in GPU memory

As far as I can tell, glGetTexImage retrieve the whole texture data. If you want to read a subset of that, you'll have to read the framebuffer object with glReadBuffer/glReadPixels as suggested by Gordon. -Fred - Martin Aasen martin-ferstad.aa...@ffi.no a écrit : Hi, Thanks for the

[osg-users] Small test program gets segmentation fault when doing own viewer loop in Qt environment

Hi, I'm writing a small test program (source below) that is doing its own viewer loop. This program runs fine if I run it using viewerWindow-show. If I run it with my own viewer loop it crashes the fist time it calls frame with a Segmentation fault in osg::LightModel::apply (see stack trace

Re: [osg-users] FBX Plugin: vertex animation support

Hi Michael, I've tried to use the same logic of morph geometry but the model couldn't be loaded. I noticed that fbxMesh-GetShapeCount() returns 0 if the model contains only point cached data while, I guess, if it were a kind of morph geometry it should return at least 1, am I wrong? In this case

Re: [osg-users] Small test program gets segmentation fault when doing own viewer loop in Qt environment

LightModel::apply dereferences a pointer when it calls glLightModelfv to set the ambient scene color. Check under a debugger to see if that's a NULL pointer. If so, the way to resolve this would be to look at how it gets initialized in the rest of OSG, then duplicate that in your viewer. My

[osg-users] Picking node with scaled positionattitudetransform as parent

Hi, I'm pretty new to OSG so I could be doing this totally wrong but... I have a scene that contains the earth and a few (3ds) models. Each model has a PositionAttitudeTransform as its parent. I need to be able to pick each model using the mouse and I have successfully done that when my

Re: [osg-users] DataPager issue

Hi robert, I have done a simple case using the osgscreencapture where there is a memory problem , here is the contents : main , osgscreencapture (I had only one function to send back the image ) , and screenshot (which is a custom viewer (move the camera around the scene) ) the data for this

Re: [osg-users] Small test program gets segmentation fault when doing own viewer loop in Qt environment

Hi, Paul Martz: I'm not surprised that this might be something uninitialized as that is what I was thinking. What surprises me is that my code comes from existing examples so if my code is not working then the examples should not work either. The only difference I can think of is that

[osg-users] Rotating a vector

Hi, How do I rotate a vector by certain Roll, Pitch, Yaw angles? Let us say I have a vector osg::Vec3d vector = new osg::Vec3d(10,10,5); How do I rotate this? Thank you! Cheers, John -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=28759#28759

Re: [osg-users] OSG on Android ?

David Glenn wrote: Hi, I got my HTC EVO toy this week and I'm already playing with the idea of making Android apps (with OpenGL ES ). I know that apps for android are mostly based on java, but I have to be the one to ask! Yea! I know! I Know! |-) I know that there was an IPhone version

Re: [osg-users] Rotating a vector

You can make a quaternion from euler angles like this: osg::Quat q = osg::Quat( pitch, osg::Vec3d(1,0,0), roll, osg::Vec3d(0,1,0), yaw, osg::Vec3d(0,0,1)); Then multiply your vector by the quat: osg::Vec3d rotated = vector * q;

[osg-users] Draw polyline from vertex array

Hi, I need to draw a polyline from an array of vertex, that is, I have an array of points, for example: vertex[1] = (1,3,4) vertex[2] = (7,4,0) vertex[3] = (5,5,1) vertex[4] = (1,2,9) and I need to join them making a line strip: For this I tried the following code, but it doest'n work, do