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Ray Tracing Across Refractive Boundaries

  • US 20170358123A1
  • Filed: 07/26/2016
  • Published: 12/14/2017
  • Est. Priority Date: 06/09/2016
  • Status: Active Grant
First Claim
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1. A method for use by a global illumination system including a hardware processor, the method comprising:

  • identifying, using the hardware processor, a first interior vertex of a plurality of first interior vertices of a light path, the plurality of first interior vertices being situated within a volume having a refractive boundary;

    determining, using the hardware processor, a surface vertex of the light path at the refractive boundary;

    determining, using the hardware processor, a linear direction from the surface vertex to a light source of the light path; and

    determining, using the hardware processor, one or more second interior vertices for completing the light path by constructing a path from the surface vertex to the first interior vertex, based on the linear direction, the surface vertex and the first interior vertex.

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