May 2014
Intermediate to advanced
522 pages
16h 1m
English
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4. Hi-Z Screen-Space Cone-Traced Reflections 189
Roughness = 0
Roughness = 0.25
Roughness = 0.4
Figure 4.28. Another example of Hi-Z Screen-Space Cone Tracing producing spread
reflections the farther it travels due to micro fracture simulation using material rough-
ness.
levels. While the algorithm works well for local reflections, there are some edge
cases where it may fail because of insufficient information on the screen. This
algorithm can only reflect what the original input image has, as we have seen.
You will not be able to look at yourself in the mirror since that information is
not available to us in screen space. Hi-Z Screen-Space Cone Tracing is
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