Volume Color Attribute

The Volume Color Attribute is a shading node that allows for programmable volume shading when used with a Standard Volume shader. For example, a color VDB grid can be loaded and it can be displaced with a noise shader. This can be used for many creative effects and adding color detail to low resolution volumes.

This node has no effect when not used with a Standard Volume shader.

Example Graph

In the example node graph below, a Volume Color Attribute is used to load a color channel and drive the Scatter Color directly. The Volume Color Attribute can be displaced by driving the Position Offset parameter with something like a Maxon noise.