ShadeTree - Mental Ray Shaders: Volume Shaders

Volume Shaders

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Atmospheric Shaders

Atmospheric Shaders are used to generate an atmosphere throughout the scene, such as fog or snow or rain. They are are assigned to the entire scene in the view. In ShadeTree you must have the Shader Type set to atmosph in the

Render Options Editor

The "soft_fog" box can be used to define different densities and colors of fog. Both the densities and colors can be modified prodecually. This is the SoftImage implimentation of a Mental Ray 'volume shader':

Volumetric Shaders

Volumetric Shaders are used to generate an "atmosphere" inside a prescribed volume, such as fire or steam or jet exhaust. They are are assigned on a per-object basis. In ShadeTree you must have the Shader Type set to volume in the

Render Options Editor

Volume Shaders

Atmospheric Shaders

Volumetric Shaders

Volumetric shaders are still in development at this time.