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Chapter 5. What's New in Rendering > Assign Vertex Colors Utility

Assign Vertex Colors Utility

The Radiosity renderer realistically imitates the way lights interact with an environment. For example, if a white object is in a room with blue walls and an orange ceiling, then the white object will appear somewhat orange on top and blue on its sides, as a result of light bouncing off the colored walls and ceiling. But radiosity, though very desirable, has always come with its own set of problems and limitations.

Rendering with radiosity is relatively quick per rendered frame—but before any frame is rendered, a radiosity solution has to be calculated for the entire scene, and that can take quite a long time, depending on the complexity of the scene. Also, using radiosity requires you to keep your objects strictly in place—no animation—after a radiosity solution is generated; if you don't, you will get chaotic, unusable textures. You can get around this by enabling Regather Indirect Illumination from the Rendering Parameters rollout, but as this generates a new radiosity solution for each frame, the entire scene will take much longer to render.


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