Masking

In Mixer, you can add a mask to a layer. A Mask is a greyscale image, which defines which areas of a layer are visible and which areas are hidden. These masks can enable a procedural workflow for even more control over your Mix. This section contains information on each type of mask available.

You’ll find buttons to add the different masks available in Mixer at the bottom of the layer’s panel.

You can also add a Mask to a layer by right-clicking on a layer and selecting from the masking options available.

*You can add a mask to the Solid, Surface, Atlas layer, or Groups folder.

Here are the three types of masks supported by Mixer.

Icon	Icon Name	Description
	Mask Stack	Click to add a mask stack to the selected layer.
	Material ID Mask	Click to add an ID mask through which you can assign a material ID to the selected layer
	Paint Mask	Click to paint a mask on this layer. Add ‘Alt’ for a black paint mask.

*You can now export masks out of Mixer for use in other DCCs.