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Note that scattering in the volume is controlled by the Max Path Length parameter in the chosen integrator and not as well as the individual diffuse and specular trace depthsdepth. You can find more information on this under the section below called Multiple Scattering. |
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Advanced Workflows
Crepuscular Beams
Crepuscular beams (sometimes called "God rays") are simply the result of light scattering in a volume. When this light is isolated into beams (for example, the few rays of sunlight that escape through a forest canopy) the contrast between the parts of the volume that scatter light and the rest of the volume leads to a striking effect.
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