Unreal Engine 4 : real-time GI using voxel cone-tracing !
EPIC games just released two impressive videos presenting their new UE4 game engine featuring real-time global illumination that supports diffuse and specular bounces on dynamic scenes. According to this interview of Tim Sweeney, their technique is called SVOGI (Sparse Voxel Octree Global Illumination) and... it is based on the voxel cone-tracing technique we published last year at Pacific Graphic
Fast and Accurate Single-Pass A-Buffer using OpenGL 4.0+
One of the first thing I wanted do try on the GF100 was the new NVIDIA extensions that allows random access read/write and atomic operations into global memory and textures, to implement a fast A-Buffer ! It worked pretty well since it provides something like a 1.5x speedup over the fastest previous approach (at least I know about !), with zero artifact and supporting arbitrary number of layers wi
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