Re: [osg-users] [osgCompute] Computation on a rendered texture quad

2012-02-28 Thread Jaco Cronje
Hi,

I got it working, thanks.

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Re: [osg-users] [osgCompute] Computation on a rendered texture quad

2012-02-27 Thread Jens Orthmann
Hi jcronje,

The method applyAsRenderTarget() or mapAsRenderTarget() is automatically called 
when
a GLMemoryTargetCallback is attached to a camera. 
Please see the osgRTTDemo-example.
It is required in order to synchronize the memory spaces correctly.
You need to be shure that a GL-Context is ready in order to call 
applyAsRenderTarget().

Does it already work by now?

Best regards,
Jens

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[osg-users] [osgCompute] Computation on a rendered texture quad

2012-02-22 Thread Jaco Cronje
Hi,

What does the applyAsRenderTarget function do, and when should I call it ?

I have a TextureQuad with a osgCuda::TextureRect on it. The textureRect is 
updated every frame with a frame from a video.
I want to render the quad on the screen and use the same osgCuda::TextureRect 
in my Computation that is attached to the same scenegraph.
The computation only reads from the texture.

The problem is that when I call the map function, I get the 
[osgCuda::TextureMemory::alloc()]: unable to register image object 
(cudaGraphicsGLRegisterImage()) error.

If I don't display the TextureQuad, then the errors goes away. But I need to 
display the TextureQuad. Do I need to call applyAsRenderTarget somewhere ??

Thank you!

Cheers,
Jaco

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