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  • RE: NVIDIA Shows Interactive Ray Tracing on GPUs

    Neither CPUs or GPUs are suited for ray tracing - it's not a compute problem - it's a memory bandwidth problem. As the ray scatter and bounce around the scene all the shader programs that need to run don't have the data on cache, so they have to fetch it and there's not enough bandwidth to do that, so the compute is underutilized. All
    Posted to 3D Graphics Cards and Video (Forum) by andyzee on Fri, Aug 15 2008
  • RE: NVIDIA Shows Interactive Ray Tracing on GPUs

    This is "barely" ray traced - three bounces is no where near what you need for good looking ray tracing. The shadows are hard, there's no inter-reflections - I could go on. Unless you are going to really have alot of rays (30+ to 300+s) you're not going to get to cinema quality and you're just really cutting corners to meet those
    Posted to 3D Graphics Cards and Video (Forum) by andyzee on Thu, Aug 14 2008
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