July 2012
Intermediate to advanced
712 pages
24h 57m
English
Content preview from OpenGL Insights
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30. WebGL Models: End-to-End 441
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Value
Index
Original
Optimized
Figure 30.5. Effect of optimization on x position.
even an index that goes off the charts. After optimization, the indices form a much
smoother line. Because of pretransform vertex-cache optimization, there are no large
forward jumps, and because of post-transform vertex-cache optimization, backwards
jumps are relatively small.
Vertex-cache optimization also affects attributes. There is a definite pattern to
the original data; they were originally captured by laser, so the periodic scanning is
apparent. The
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