Clipmapping is a method of
clipping
Clipping may refer to:
Words
* Clipping (morphology), the formation of a new word by shortening it, e.g. "ad" from "advertisement"
* Clipping (phonetics), shortening the articulation of a speech sound, usually a vowel
* Clipping (publications) ...
a
mipmap
In computer graphics, mipmaps (also MIP maps) or pyramids are pre-calculated, optimized sequences of images, each of which is a progressively lower resolution representation of the previous. The height and width of each image, or level, in the ...
to a subset of data pertinent to the geometry being displayed. This is useful for loading as little data as possible when
memory
Memory is the faculty of the mind by which data or information is encoded, stored, and retrieved when needed. It is the retention of information over time for the purpose of influencing future action. If past events could not be remembered ...
is limited, such as on a
graphics processing unit
A graphics processing unit (GPU) is a specialized electronic circuit designed to manipulate and alter memory to accelerate the creation of images in a frame buffer intended for output to a display device. GPUs are used in embedded systems, m ...
. 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.
[http://on-demand.gputechconf.com/gtc/2014/presentations/S4552-rt-voxel-based-global-illumination-gpus.pdf ]
References
External links
SGI paper from 1998SGI paper from 1996
Clipping (computer graphics)
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