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dev notes

Philippe Leprince edited this page Nov 11, 2016 · 2 revisions

PxrSurface glsl shader

Problems

  • PxrSurface has 125 parameters, but GPUs have a limited number of samplers.
    • Implement various combinations of lobes that fit various classes of GPUs.
    • 16 TMUs (Texture Mapping Units) seems standard (aka the bare minimum), but the Nvidia Titan GX has 224 TMUs and pro GPUs often have 128 TMUs.
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