July 2015
Intermediate to advanced
586 pages
17h 21m
English
Content preview from GPU Pro 6
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2. Tile-Based Omnidirectional Shadows 335
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Time (ms)
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Number of Lights
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Tiled Cube
643216842
Figure 2.7. Frame times of tiled versus cube technique with an increasing number of
shadow-casting point light sources.
18000
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Number of Draws
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Number of Lights
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Tiled Cube
643216842
Figure 2.8. Number of CPU submitted draw calls to render shadow maps in tiled and
cube technique with an increasing number of shadow-casting point lights.
doing a hardware texture lookup in a cube map is faster than doing the proposed
lookup, this is not true for performing PCF to produce soft shadows. While for
336 IV Shadows ...
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