The topics in this section describe shaders for managing motion blur as a post process.
This shader is intended for those who wish to do compositing work before applying motion blur, or to use a specific third-party motion-blur shader. Its purpose is to export motion in pixel space (mental ray’s standard motion vector format is in world space) encoded as a color.
This shader applies fast, grain-free motion blur as a post process. It works by using pixel motion vectors stored in the rendering phase and “smearing" these into a visual simulation of motion blur.