Hi Aurelien,
have you tried to uncomment
Code:
...
pCudaTexture->setUsage(osgCompute::GL_TARGET_COMPUTE_TARGET);
because what you really need is:
Code:
...
pCudaTexture->setUsage(osgCompute::GL_SOURCE_COMPUTE_TARGET);
which is set by default.
Another option is to take a look at our osg
Hi,
I think search in the osgCuda code for Memcpy2D. I think the cuda
"shadow buffer" that osgCuda makes is copied to the texture in the
unmap(). There is possibly some other things like updating the texture
dirty count as well so that OSG knows the texture has been changed.
I'm sorry I can'
To be more specific, I just need one function :
"copyCudaBufferToOsgTexture"
I thought osgCuda provide it, and I hope this is the first step for me before a
complete migration from "hand-made" Cuda to osgCuda code.
--
Read this topic online here:
http://forum.openscenegraph.org/
Hi,
On 17/10/2011 15:26, Aurelien Albert wrote:
Hi,
The Shader is executed as a "normal" osg shader program : by setting
it on the node stateset.
The Cuda code is executed before any rendering (before the
pViewer->frame() call)
By diggging in the osgCuda code source, it seems like
"cudaGraphi
Hi,
The Shader is executed as a "normal" osg shader program : by setting it on the
node stateset.
The Cuda code is executed before any rendering (before the pViewer->frame()
call)
By diggging in the osgCuda code source, it seems like
"cudaGraphicsMapResources" and "cudaGraphicsGLRegisterImage
Hi Aurelien,
I'm not sure how to get you manual method working. It might have to do
with multiple contexts? How are you running the shader? In pre-render
pass? If so, you'll have to make sure the cuda code also executes in the
pre-render stage.
All I can add is that I'm mixing GLSL passes an
Hi,
I'm working on the port of a OpenGL / Cuda application to OSG / osgCuda.
(OSG 3.0.1 with osgCuda from trunk)
One of our class use Cuda to compute a buffer and then :
- copy this buffer to a texture buffer (using cudaMemcpy)
- bind this texture to a texture unit (using glBindTexture)
- use th
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