bifrost_scalar_channel

Returns the value of a scalar channel from a Bifröst object. You can connect the Out Value port to drive an input port of another shader.

Default
The value to use when the specified channel is not found.
Channel
The name of the Bifröst channel to return.

To echo a list of voxel channels that are defined on a Bifröst object to the Script Editor, run the following MEL command:

getAttr objectname.availableVoxelChannels;

To echo a list of particle channels, run this:

getAttr objectname.availableParticleChannels;