Raytracing is a type of rendering where the path of individual light rays are calculated between the camera and the light source. To find out more about how to raytrace to produce shadows, see Raytraced shadows in the Lighting guide.
To find out more about how to raytrace to produce reflections, see True reflections in the Shading guide.
You may not need to adjust quality settings for an entire scene. Adjusting settings on a per-object basis is often faster and has less of an impact on rendering speed.
To set raytracing quality, adjust the settings in the Raytracing Quality section of the Render Settings window.
