Hi, I used to do post processing with Cuda.
But I've switched to full GLSL : - no compatibility problem - no performance overhead due to interoperability To compute histogram, you can use the method described in this link : http://http.developer.nvidia.com/GPUGems3/gpugems3_ch41.html I use it, it's pretty efficient (and really efficient if you don't compute the histogram for the full image, but only 1/4 pixel) I've try to compute histogram with compute shader, too, but it doesn't work for now. The most difficult in postprocessing is to insert CPU control code, for example to read back values in the histogram and set these values as input for the equalization pass. For this I use a lot of PostDrawCallbacks. Cheers, Aurelien ------------------ Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=52793#52793 _______________________________________________ osg-users mailing list [email protected] http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
