I am very interested in getting my hands on some more example compute shader implementations, especially the proposed histogram compute shader mentioned in this post. I know this is an old thread, but is the histogram compute shader mentioned available anywhere for me to look at?
Wang Rui wrote: > Thanks Robert, > > The computer shader support compiles and works fine under My computer with > Windows 7 and a NVIDIA GTX 570 card. :-) > > > My plan is to provide a GPU histogram example using the new computer shaders, > which would be helpful for determining the brightness of the scene on screen, > as well as an important part of the SDSM shadow technique for very large > range use. I would submit the new code to the osgcomputershaders example when > it is finished. The memory barrier functionality discussed in this thread > before will also be provided then, > > > Cheers, > > > Wang Rui > > > > > > > > 2013/1/25 Robert Osfield < ()> > > > Hi Rui, > > > > Compute shaders now checked in (along with your Program.cpp update > > provided in subsequent email). Could you check out svn/trunk to make > > sure that everything is in place correctly. > > > > Unfortunately my current NVidia driver in only OpenGL 4.2 and does > > support GL_ARB_compute_shader so unfortunately I wasn't able to test > > the osgcomputeshaders example :-| > > > > Thanks for you work, > > Robert. > > > > On 16 December 2012 07:59, Wang Rui < ()> wrote: > > > > > Hi Robert, > > > > > > In the attached files I've added the Compute Shader support for OSG, as > > > well > > > as serializer updates and a new osgcomputeshaders example. My submission > > > also include a setComputeGroups() function in Program for setting > > > compute-shader work groups, and a bindToImageUnit() function in Texture > > > for > > > binding textures as image variables in shaders. > > > > > > All code are tested on Windows 7 + NVIDIA GFX 570 with the latest GeForce > > > 310.70 Driver (BETA), which could support OpenGL 4.3. > > > > > > Compute shader information can be found at: > > > http://www.opengl.org/registry/specs/ARB/shader_image_load_store.txt > > > (http://www.opengl.org/registry/specs/ARB/shader_image_load_store.txt) > > > > > > Wang Rui > > > > > > > > > > > > > > > _______________________________________________ > > > osg-submissions mailing list > > > () > > > http://lists.openscenegraph.org/listinfo.cgi/osg-submissions-openscenegraph.org > > > > > > (http://lists.openscenegraph.org/listinfo.cgi/osg-submissions-openscenegraph.org) > > > > > > > > _______________________________________________ > > osg-submissions mailing list > > () > > http://lists.openscenegraph.org/listinfo.cgi/osg-submissions-openscenegraph.org > > > > (http://lists.openscenegraph.org/listinfo.cgi/osg-submissions-openscenegraph.org) > > > > > > > > > ------------------ > Post generated by Mail2Forum ------------------ Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=57014#57014 _______________________________________________ osg-submissions mailing list [email protected] http://lists.openscenegraph.org/listinfo.cgi/osg-submissions-openscenegraph.org
