God rays effect

Cast rays of light from the top of the screen. This won't work well if shown on top of the background color of the scene. Be sure to use an object acting as a background or a floor.

Enable Parallel to cast rays all in the same direction (as if coming from a far away sun), controlled by the Angle. Disable it to make the rays spread out from a single point set with Center X and Center Y, which is useful for a lamp or a window. The Animation Speed makes the rays shimmer over time (set it to 0 to keep them still), while Gain and Lacunarity change how bright and how detailed the light shafts look.

Reference

All effects are listed in the effects reference page.