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MIP-Map Level Selection for Texture Mapping
October-December 1998 (vol. 4 no. 4)
pp. 317-329

Abstract—Texture mapping is a fundamental feature of computer graphics image generation. In current PC-based acceleration hardware, MIP-mapping with bilinear and trilinear filtering is a commonly used filtering technique for reducing spatial aliasing artifacts. The effectiveness of this technique in reducing image aliasing at the expense of blurring is dependent upon the MIP-map level selection and the associated calculation of screen-space to texture-space pixel scaling. This paper describes an investigation of practical methods for per-pixel and per-primitive level of detail calculation. This investigation was carried out as part of the design work for a screen-space rasterization ASIC. The implementations of several algorithms of comparable visual quality are discussed and a comparison is provided in terms of per-primitive and per-pixel computational costs.

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Index Terms:
Texture mapping, filtering, MIP-map, minification, level of detail, rasterization, interpolation.
Citation:
Jon P. Ewins, Marcus D. Waller, Martin White, Paul F. Lister, "MIP-Map Level Selection for Texture Mapping," IEEE Transactions on Visualization and Computer Graphics, vol. 4, no. 4, pp. 317-329, Oct.-Dec. 1998, doi:10.1109/2945.765326
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