Reflections and Refractions

Reflections #

Raytraced reflections are more accurate reflections than Screen Spaced Reflections.

The images below show the difference between each raytracing nodes reflections.

Sky Light #

The Sky light reflects the skydome HDR environment map, it will not reflect the surrounding geometry although it will be occluded by objects.

Area Light #

The Area light will reflect lighting which will be occluded by objects in the scene.

RT Mirror Reflection #

RT Mirror Reflection is the fastest simplest raytraced reflections node with only a single bounce. This node can be used independently of any other raytraced nodes.

This node is great for real-time projects

Reflection Multi Bounce Raytracer #

The Reflection Multi Bounce Raytracer node supports multiple bounce reflections, it also supports material roughness.

Refractions #

RT Glass Refraction #

RT Glass Refraction works alongside the new RT glass or translucent material and is great for real-time projects.

This node can be used independently of any other raytraced nodes.

This node is great for real-time projects

Pathtracer #

The Pathtracer node is different as it is essentially all RT nodes together, raytraced refractions, reflections and diffuse bounce.

RT Glass Refraction and Reflection Multi Bounce Raytracer won’t show refractive glass in metallic reflections. The pathtracer will show refracted glass objects in the reflections of metal objects.

RT Glass Refraction and Multibounce Reflections	Pathtracer