Reflect
What is it about?
This page covers the Reflect node of the Scene Nodes system in Cinema 4D. It computes the reflection direction of a vector at a surface normal — mirror-ray math for custom optics and bounce logic.
This Node can be used to ascertain the direction in which a vector will be reflected. This can be a ray that is reflected by a mirrored surface. Vector 1 defines the direction of the incoming ray. Vector 2 defines the direction of the surface normal from which the sample should reflect. According to the idealized principle of angle of incidence = angle of reflection, the direction of the reflected ray will result.