**Twilight Renderer Options**
{{:user-guide:raytracing_settings.png}}

The raytracing settings for rendering can be customized under <key>Preferences --> Renderer --> Twilight</key>. The ray processor can be selected from the "Ray processor" drop-down menu. When changing parameter values in the preferences, you always have to leave the field you changed with your cursor before closing the preferences window (just click in a different field) for your changes to take effect. You can find an overview of the different raytracing algorithms to choose from besides their relevant settings in the algorithm section.

See more: 
  * [[:groimp-platform:raytracing:raytracer_impl|Ray tracer implementation]]
  * [[:groimp-platform:raytracing:raytracer_algo|Ray tracer algorithm]]

Tutorials:
  * [[:tutorials:starting_raytracer|Getting started with the raytracer]]