Houdini 19.5 Nodes VOP nodes

Karma Nested Dielectrics VOP node

Adds nested dielectrics support to MaterialX surface shaders in Karma.

Since 19.5

This node is a way to add Nested Dielectrics support to a MaterialX surface shader. The MaterialX shaders don’t have this ability built-in like the Principled Shader does.

Example setup, inside of a Karma MaterialX Subnet.


  • Adding nested dielectrics is done by inserting this node between a surface shader and the material output.

  • You will likely want the IOR on your Surface Shader and this node to match. One way to do this is using a Parameter VOP to drive both inputs.

  • See Nested Dielectrics for more info.

VOP nodes