Variable-precision rendering

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Abstract
We propose the idea of using variable-precision geometry transfor- mations and lighting to accelerate 3D graphics rendering. Multires- olution approaches reduce the number of primitives to be rendered; our approach complements the multiresolution techniques as it re- duces the precision of each graphics primitive. Our method relates the minimum number of bits of accuracy required in the input data to achieve a desired accuracy in the display output. We achieve speedup by taking advantage of (a) SIMD parallelism for arith- metic operations, now increasingly common on modern processors, and (b) spatial-temporal coherence in frame-to-frame transforma- tions and lighting. We show the results of our method on datasets from several application domains including laser-scanned, proce- dural, and mechanical CAD datasets.

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