You can render Global Illumination only with the mental ray for Maya renderer.
Global illumination is the technique used to capture indirect illumination, the natural phenomenon where light bounces off
anything in its path until it is completely absorbed.
Global illumination lets you achieve realistic, real-world lighting conditions, which is particularly good for:
- Architectural visualizations and industrial design projects that require physically accurate lighting.
- Entertainment projects that require credible, but not necessarily physically accurate, lighting.
mental ray for Maya creates Global illumination by tracing the paths of photons and recording their bounce points in a photon
Caustics, focused light effects, are a form of global illumination.
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