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Graphics Interchange Format  |  1997-06-27  |  54.5 KB  |  620x219  |  4-bit (16 colors)
   ocr: Table: 3. The etticiency of the adaptive grid: algorithm. Regular (nAxn'Pxn'P)grid Adaptive grids Total Runtime Number of Non- Pre- Ray Non- Pre- Ray Gain Gain Primitives n uniformity processing Tracing uniformity processing Tracing Factor Factor Flake 7,382 19:5 0:02 45:14 1.2 1:32* 1:14 16.4 36.7 F15 7,021 22,5 0:01 29:05 1.9 0:02 0:38 43.7 46.0 Teapot 7,742 11.6 0:01 15:47 1.5 0:02 0:55 16.6 17.2 Museum 11,512 66.5 0:02 35:24 1.7 0:04 2:38 13.1 13.4 Mirrors 123,008 14.0 0:16 54:48 1.7 0:43 10:47 4.8 5.1 Car 86,155 32.5 0:11 1:19:08 1.5 0:24 2:13 30.3 35.7 Eagles 85,412 104.1 0:18 15:51:08 4 ...