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Brecht Van Lommel 27043b8e40 Cycles code internals: add support for mesh voxel grid attributes. ...

These are internally stored as a 3D image textures, but accessible like e.g.
UV coordinates though the attribute node and getattribute().

This is convenient for rendering e.g. smoke objects where data like density is
really a property of the mesh, and it avoids having to specify the smoke object
in a texture node, instead the material will work with any smoke domain.

2014-03-29 13:03:48 +01:00

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