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Cache-efficient processor and method of rendering indirect illumination using interleaving and sub-image blur

  • US 9,129,443 B2
  • Filed: 05/21/2013
  • Issued: 09/08/2015
  • Est. Priority Date: 05/21/2013
  • Status: Active Grant
First Claim
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1. A processor configured to render an indirect illumination image, comprising:

  • a buffer restructurer configured to organize a reflective shadow map (RSM), rendered with respect to a reference view, into a plurality of unique sub-RSMs, each having sub-RSM pixels;

    an indirect illumination computer configured to employ interleaved sampling on said plurality of unique sub-RSMs to generate a plurality of indirect illumination sub-images; and

    a filter operable to smooth accumulated light values of said indirect illumination sub-images for subsequent interleaving into said indirect illumination image, wherein said organizing said RSM into said plurality of unique sub-RSMs comprises assigning each pixel of said RSM to a single sub-RSM so that each sub-RSM has a same resolution and number of said sub-RSM pixels as all other sub-RSMs.

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