Re: [osg-users] [osgPlugins] Adding an alias for .osg

Hi, Anyone? Thank you! Cheers, Joan -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=18371#18371 ___ osg-users mailing list osg-users@lists.openscenegraph.org

Re: [osg-users] how to improve frame rate of my scene with lots of cubes and cylinders?

Hi Maurizio, Maurizio Lodo schrieb: Hi, Thanks Peter for your very helpful reply. I have sorted that issue thank to your pointers. Now I have only one more question then I promise I won't bother you anymore. It seems that when I generate my model using the simple geometries I created and

Re: [osg-users] re-initialize OpenGL objects after window resize

Hi Terry, On Sun, Oct 18, 2009 at 11:12 PM, Terry Welsh mogu...@gmail.com wrote: I'm working on and OSG/SDL application.  Resizing the window in Linux works fine, but resizing it in Windows causes the app to lose all its OpenGL objects.  Is there a recommended way to re-initialize all OpenGL

Re: [osg-users] Write osgAnimation callbacks into osg files - no Information available ?

The reason you get no update callback in the .osg file is that osganimationnode uses a custom callback, AnimtkUpdateCallback, that the .osg writer doesn't know about. From the OpenSceneGraph-Data .osg files that have animation (such as robot.osg), it looks like

Re: [osg-users] Write osgAnimation callbacks into osg files - no Information available ?

Cedric Pinson wrote: Hi pp, What is the function setupAnimtkNode ? and which version of OpenSceneGraph are you using ? Hi Cedric, we always use the current stable release, currently osg 2.8.2. I am also referring the example osganimationnode from this version, so I am using class

Re: [osg-users] Loading mesh without textures

So, as promised here's the code to strip textures and UV coords from geometry. It saves me about 700 mb at runtime, which makes me happy :o Code: class StripTexturesVisitor : public osg::NodeVisitor { public: StripTexturesVisitor() :

[osg-users] nvidia sync to vblanc and multiple viewer

Hi, I actually use 2 osg::viewer embedded in a Qt window, when i enable the sync to vblanc in nvidia-setting my 2 viewers work's to 30 fps while my refresh rate is 60 htz. (and 3 viewers work's to 20fps ...) Did anybody already experiment this issue ? Maybe it's a driver bug, i use osg 2.8.0

Re: [osg-users] memory leak in osg 2.8.2 ?

Hi Chris, thx for your answer and your trick ! :) but it is the same for me... struct TheEnd { ~TheEnd() { _CrtDumpMemoryLeaks(); } }; TheEnd theEnd; int _tmain(int argc, _TCHAR* argv[]) { osg::ref_ptr osg::Group gr; return 0; } Detected memory

Re: [osg-users] memory leak in osg 2.8.2 ?

Hi Sebastien, Hmmm, just looking my code again and realized I didn't actually perform the check directly. I delay the leak check until nearer termination using _CrtSetDbgFlag. e.g.: Code: ~TheEnd() { _CrtSetDbgFlag(_CRTDBG_LEAK_CHECK_DF); } Seems to work ok for me in VS2005. Cheers,

[osg-users] Enabling osgSim::DOFTransform animation

Hi, Recently we've implemented a model of a building with moving doors by adding osgSim::DOFTransform nodes for the doors (the geometry added as child of the DOFTransform). While this works quite well, there's an issue I've had with enabling the animation to open the door. When

Re: [osg-users] [osgCompute] Problems compiling osgCuda

Hi Arun. rehmanrulz wrote: ...I can gladly help testing on a 64bit machine from my end. OsgCuda seems to compile when I linked to the 32bit cudart.lib library. But I get a lot of errors when compiling the examples provided. List of errors for osgTexDemo. ... At the moment we are

[osg-users] Yet annother way to prevent MFC false memory leaks

There have been a number of posts about the reasons why MFC falsely reporting memory leaks. These leaks can be seen when the osgviewerMFC example exits. I wasted a few hours trying to get rid of them, none of the suggested solutions worked for me. What did work, which I have posted here in case it

[osg-users] Plane::intersect(BoundingBox box) buggy ?

Hi, I've used an osg::Polytope to test whether a given convex volume was colliding against a BoundingBox. Unfortunately it wouldn't work. I've tracked the problem down to Plane::intersect(). /** intersection test between plane and bounding sphere. return 1 if the bs is

Re: [osg-users] OT: Re: Is there any examples about OpenThreads?

Hi Ulrich, Ulrich Hertlein wrote: On 16/10/09 6:37 PM, Cory Riddell wrote: Ulrich Hertlein wrote: ... Yes, CPUs usually have their own caches and data can be different in the different caches. However, this isn't what synchronization is solving. This problem (cache coherency) is handled

[osg-users] Overlaying Shapefiles onto Terrain

I am trying to find a way to overlay some boundary lines defined in a shapefile across an existing terrain. I would like to support the ability to load shapefiles at runtime instead of generating a terrain file with the boundary lines with something like osgGIS. I have looked at the

Re: [osg-users] nvidia sync to vblanc and multiple viewer

On Mon, Oct 19, 2009 at 11:29:32AM +, Linares Antonin wrote: Hi, I actually use 2 osg::viewer embedded in a Qt window, when i enable the sync to vblanc in nvidia-setting my 2 viewers work's to 30 fps while my refresh rate is 60 htz. (and 3 viewers work's to 20fps ...) Did anybody

Re: [osg-users] Plane::intersect(BoundingBox box) buggy ?

Hi Tanguy, What makes you think its wrong ? I think its very smart code which does only whats really neccessary. _lowerBBCorner and _upperBBCorner are not constant and in fact are relative and precalculated based on plane orientation. Depending on the plane orientation its possible to know

Re: [osg-users] Write osgAnimation callbacks into osg files - no Information available ?

p...@graphics.cs.uni-sb.de wrote on Monday, October 19, 2009 3:14 AM: The reason you get no update callback in the .osg file is that osganimationnode uses a custom callback, AnimtkUpdateCallback, that the .osg writer doesn't know about. From the OpenSceneGraph-Data .osg files that have

Re: [osg-users] Export osgAnimation callbacks into osg files

Hi Peter, pp wrote: Hi Cedric and thx for fast answer. I replied in the forum already, but waiting for approval. ... Wonder why your message was still not approved? Peter, please change your profile according to our forum rules. I see your email is from our Saarland University, so on

Re: [osg-users] Plane::intersect(BoundingBox box) buggy ?

Hi Wojtek, You make a very pertinent remark about _lowerBBCorner and _upperBBCorner being pre-calculated. I must admit I missed that fact. I've reviewed carefully OSG code and mine, and just realized we use opposite convention for the plane orientation (osg::Polytope expects the plane to

[osg-users] Repeatable rendering of subgraphs, ideas?

Hi folks, I need to render a subgraph multiple times per frame. So, not the way how osg::Sequence work, where it renders a subgraph for specified amount of frames, but I want to render the same subgraph several times during one frame. The graph will look for example like this one: root |

Re: [osg-users] Databasepager + multiple views + different camera positions = memory leak?

I have created an example for the memory growth problem. If you have a chance can you please run it with the following command arguments : -3, where is your database main txp file. It creates 3 views. In order to trigger the memory growth problem. First get closer to the terrain

Re: [osg-users] Repeatable rendering of subgraphs, ideas?

Hi Art, Of course the amount of repeats should be changeable during run time, hence simple multiple copy of group A will not work. Make a subclass of osg::Group which has an overridden traverse() method, which is like this: void traverse(osg::NodeVisitor nv) { for (unsigned int i = 0;

Re: [osg-users] Repeatable rendering of subgraphs, ideas?

Multi Parents should work ? you can change state etc on each parent if needed Gordon Product Manager 3d __ Gordon Tomlinson Email : gtomlinson @ overwatch.textron.com __

Re: [osg-users] Repeatable rendering of subgraphs, ideas?

Hi Art, The suggestions from JS and Gordon are both pretty reasonable ways to tackle this problem. The only thing I'd add is that a variation of JS's solution would be to use a cull callback attached to a Group node that does the repeated traverse for you without the need to subclass from

Re: [osg-users] Problem with AutoTransform and picking (osgManipulator)

The problem is now resolved. I have many tabs displaying the same scene graph in my application. One of the tab had a broken (NaN) projection matrix because of a nice window resize to a [0,0] dimension on creation (thanks Qt!) I was using a second tab with a second osgViewer, without caring

Re: [osg-users] CompositeViewer with quad buffered stereo?

I tried with 2.8.0 and 2.8.2, and it's the same story. Run, osgCompositeViewerd cow.osg --stereo QUAD_BUFFER It fails to run in stereo and produces the messages in my original post: viewerd.exe cow.osg --stereo QUAD_BUFFER Warning: Could not find plugin to read objects from file QUAD_BUFFER.

Re: [osg-users] Repeatable rendering of subgraphs, ideas?

Hi guys, thanks for the tipps. I also was thinking about overriding the traverse method as JS said. So in deed this is what I need. A simpler thing would be also, what Robert proposed, just to write own traverser. However, in my case I will also have a circular dependency in the graph. So

Re: [osg-users] Question about implement a Timer thread

Robert Osfield wrote: Hi Shinna, I'm a bit perplexed why you actually need a timer in the way you want. The OSG provides a FrameStamp on each new frame that provides the frame number and simulation time - this is sufficient for most animation work. It sounds like Shiina is looking for an

Re: [osg-users] Can't assign more than 7 texture matrices

Hi, i thought i could use the buildin variabled to save some uniforms. But i did'nt realize that they were limited. Well.. i tried to use uniform arrays but with very little sucess: I create my Uniform: ref_ptrUniform matrixArrayUniform = new Uniform(Uniform::FLOAT_MAT4,matrices,10);

Re: [osg-users] CompositeViewer with quad buffered stereo?

Hi Jonathan, I tried with 2.8.0 and 2.8.2, and it's the same story. Run, osgCompositeViewerd cow.osg --stereo QUAD_BUFFER It fails to run in stereo and produces the messages in my original post: viewerd.exe cow.osg --stereo QUAD_BUFFER Warning: Could not find plugin to read objects from file

[osg-users] how to generate shadow map out of renderingTraversals ?

Hi all, I would like to generate a shadow map before the real scene draw, in order to alter it (add 3rd parties objects shadows in it) before applying the shadow map to the 'real' world. The context is that osg is called inside a custom 3D engine, so a post prerender callback won't be enough.

Re: [osg-users] CompositeViewer with quad buffered stereo?

Thanks Jean-Sebastian, You were right about the application not recognizing the QUAD_BUFFER argument. The problem is that the quad buffered stereo still doesn't work. I still get the warning about an OpenGL error: Warning: detected OpenGL error 'invalid operation' after RenderBin::draw(,)

Re: [osg-users] CompositeViewer with quad buffered stereo?

Hi Jonathan, I still get the warning about an OpenGL error: Warning: detected OpenGL error 'invalid operation' after RenderBin::draw(,) That warning could be caused by something else, I wouldn't put too much stake into it being related to your problem. It's such a general warning that it's

Re: [osg-users] how to generate shadow map out of renderingTraversals ?

Hi Frederic, Are you familiar with the osgViewer/osg::Camera RTT capabilities? They are very flexible now, you can render subgraphs under an scene graph RTT osg::Camera as a pre rendering stage then switch it off for subsequent frames. Have a look at the osgprerender, osgprerendercubemap

Re: [osg-users] how to generate shadow map out of renderingTraversals ?

Thanks Robert, Rendering to texture is ok, it works fine. What I need is to completely split the rendering (pre and others) in 2 very own calls (or find a way to do the same) To explain the context / my need, here is a little documented 'code' : myOwn3DEngine* aCustom3DEngine; osgViewer*

Re: [osg-users] Repeatable rendering of subgraphs, ideas?

Art Tevs wrote: P.S. The solution is practicaly for implementing iterative image processing algorithms with osgPPU for example. I've been thinking about the same issue, rendering a subgraph repeatedly with different texture input and FBO setup output, for purposes of depth peeling.

Re: [osg-users] Can't assign more than 7 texture matrices

Hi, Wojciech Lewandowski wrote: Hi again Johannes, I hate to say that, ( don't think I enjoy doing it), but it seems to work on NVidia (at least those above GF 8x00) and I am really surprised it does not work for you especially when you have advance gpu supporting GL_EXT_gpu_shader4

[osg-users] VRML plug-in

Hi all, I need to open a wrl model with OpenSceneGraph, but it doesn't have the right plug-in to do the job. I try to search on internet and find this discussion: http://forum.openscenegraph.org/viewtopic.php?t=3576 (about a month ago). I try to follow the instruction mentioned there but am not