Hello to All,
I'm having a very specific issue using OpenSceneGraph. While using a texture
shader I developped, I need to attach a texture to my object. But my texture
need to be changed at each frame. However, I noticed that my texture is not
updated in the next viewer.update() if my computer is very fast. If I slow down
my computer it is correctly synchronized.
In other word, I'm looking for a way to way for a texture object to be
propagated in the gpu buffer before rendering the frame.
As I'm using OpenSceneGraph for simulation purpose even 1 frame offset is not
acceptable for me.
Basically the code can be summed up this way:
Code:
osg::Image IMAGE;
IMAGE->setImage(..., imageData, osg::Image::AllocationMode::NO_DELETE);
osg::StateSet *mystate = new osg::StateSet();
osg::Texture2D *texture = new osg::Texture2D();
texture->setImage(IMAGE);
(...)
for(int i=0;i<!viewer->done();++i)
{
IMAGE->setImage(..., ImageData[i], osg::Image::AllocationMode::NO_DELETE);
viewer->frame(ctime);
}
In this example when rendering the scene OSG sometimes uses the ImageData of
index i-1 instead of index i
If anyone can help me I would be very happy.
Regards.
------------------
Read this topic online here:
http://forum.openscenegraph.org/viewtopic.php?p=42294#42294
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