Houdini 18.5 Nodes Shader nodes

VEX Matte shader node

Occludes geometry behind the surface being rendered.

The matte shader will occlude geometry behind the surface being rendered, however, the output image will have the alpha value specified. This allows for compositing tricks. When the matte shader is hit by shadow rays, the shadow amount determines how much of a shadow will be cast by the surface.

It is also possible to disable fog on the surface. This means that no fog will show up on the surface.

Shader nodes