Hi Mick/Jens,
our small research group is experimenting with osgCompute to expand the
capabilities of our existing GLSL framework for doing real-time image
processing.
I've looked through the examples and we made a few simple tests using
osg::Image as input like in osgTexDemo. What we'd like to do though is
use an existing texture (already uploaded to GPU and possibly already
passed through some RTT passes) as input to osgCompute. That is, we'd
like to copy data as little as possible and avoid any CPU<->GPU copies.
I've seen calls to cudaGraphicsGLRegisterImage in osgCuda/Texture, but
I'm not sure if it is possible to set a mapping in osgCompute so that an
existing texture is only used as an input and not synced or copied to
host memory at all. Is it possible?
regards
jp
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