Left Toolbar > Material Nodes >
Material Blend
The Material Blend node blends two materials with the same material template.
input
bg_material
fg_material
mask
output
material
On the left toolbar choose Material Nodes > Blend. >
Drag the Material Blend icon into the Node Graph.
Connect the output of a material node into the bgmaterial and fgmaterial inputs in the Material Blend node.
The bgmaterial and fgmaterial must have the same material template.
bg_material
The background material.
fg_material
The foreground material.
mask
The blending mask. The Mask image is multiplied by the alpha of the first foreground Rgba image.
material
The new material.
Opacity
The opacity of the foreground material.