Rastar Posted September 29, 2014 Share Posted September 29, 2014 Is it currently possible to use transform feedbacks with LE 3.2? If not, is there a chance this might be added? Maybe even in 3.3 ? TFs would make the geometry and tessellation shaders even more valuable, and there are a number of very interesting algorithms especially for (guess what) terrain and ocean rendering that are making heavy use of them. EDIT: Oh, and I would be happy with a pure experimental, fully undocumented and completely unsupported implementation Quote Link to comment Share on other sites More sharing options...
Josh Posted September 29, 2014 Share Posted September 29, 2014 So it renders the transformed vertices into a GL buffer (not a Leadwerks buffer, just a generic data buffer)...for what? Ocean water physics? What are the applications of this? Quote My job is to make tools you love, with the features you want, and performance you can't live without. Link to comment Share on other sites More sharing options...
Rastar Posted September 29, 2014 Author Share Posted September 29, 2014 It's more for doing the dynamic tessellation of grids in terrain and ocean rendering. It would render the vertices + specified attributes into a buffer that is stored on the GPU side. That way the mesh generation performed by the tessellation and/or geometry shaders wouldn't have to be redone from scratch every frame, but rather could be modified in subsequent frames to account for camera movements etc. As an example, in this paper they are using transform feedbacks for exactly this purpose: http://www.hindawi.com/journals/tswj/2014/979418/ Quote Link to comment Share on other sites More sharing options...
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