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Depth bounds testing

  • US 20040169651A1
  • Filed: 05/23/2003
  • Published: 09/02/2004
  • Est. Priority Date: 02/27/2003
  • Status: Active Grant
First Claim
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1. A method for rendering a volume within a scene, comprising:

  • rendering a set of pixels of the scene to fill a depth buffer with depth values associated with the set of pixels;

    setting a depth bounds associated with the volume;

    defining a fragment associated with the volume, having a volume depth, and covering at least one subset of pixels of the scene, wherein each subset of pixels has a subset depth value;

    for each subset of pixels, discarding at least a portion of the fragment covering the subset of pixels in response to the corresponding subset depth value being outside of the depth bounds associated with the volume; and

    for each subset of pixels, processing at least a portion of the fragment covering the subset of pixels in response to the corresponding subset depth value being inside of the depth bounds associated with the volume.

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