The RT Glass Refraction node is a fast cheap raytraced glass solution.

This node can be used in scenes that need additional performance such as lightmapped scenes that aren’t using the pathtracer node.

Once the Glass Refraction node is added to the scene, (making sure that Raytracing is enabled on the root) this will enable you to simulate glass materials such as bottles, windows and glass on any raytraced enabled RT glass or transparent material/surface.

A scene using RT Glass Refraction


Name Description
Path Tracer Shader Import a shader source code file as a resource.
Denoising / Refinement Toggles on and off denoising / refinement.
Ray Bias Sets the bias of the rays.
Sample clamp Clamps the reflectiveness of the rays.

Environment Map

Name Description
Max. Depth Sets the refraction bounce depth


All nodes connected to this node are treated as if flowing to the parent node, and inherits any transformation changes along the chain.