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Clipmap

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Title: Clipmap  
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Subject: Clipping (computer graphics), Terrain rendering, Pixel
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Clipmap

Clipmapping is a method of clipping a mipmap to a subset of data pertinent to the geometry being displayed. This is useful for loading as little data as possible when memory is limited, such as on a graphics processing unit. The technique is used for LODing in NVIDIA’s implementation of voxel cone tracing. The high-resolution levels of the mipmapped scene representation are clipped to a region near the camera while lower resolution levels are clipped further away.[1]

References

  1. ^ http://on-demand.gputechconf.com/gtc/2014/presentations/S4552-rt-voxel-based-global-illumination-gpus.pdf

External links

  • SGI paper from 1998
  • SGI paper from 1996
  • Description from SGI's developer library
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