2/28/2023 0 Comments Ssao on vs offIn general this isn't practical for realtime rendering. Computing the occlusion factor can be expensive offline renderers typically do it by casting a large number of rays in a normal-oriented hemisphere to sample the occluding geometry around a point. The basic idea is to compute an occlusion factor for each point on a surface and incorporate this into the lighting model, usually by modulating the ambient term such that more occlusion = less light, less occlusion = more light.
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