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Graphics Interchange Format  |  1997-06-26  |  59KB  |  587x241  |  4-bit (16 colors)
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OCR: Table 1. The influence of heterogeneous grids on ray-tracing time. Heterogeneous Empty Tracing Time Speedup of Grids Voxels (%) Nonuniformity (mm:ss) Previous Row Bezier patcht No 86.2 2.8 1:54 Yes 25.7 0.7 0:49 2:31 F15 No 91.5 6.7 2:42 Yes 90.0 5.5 2:21 1.15 Teapot No 81.4 3.9 1:28 Yes 79.9 3.5 1:19 1,12 Mirrors No 89.8 6.1 29:14 .Yes 79.8 5.2 22:43 1.29 Bezier patch is a flat tensor product patch parallel to the projection plane and tesselated into 1,922 triangles. The other test scenes contain very few axis aligned elements.