Scatter VL Pro 2012 for 3DS Max

ScatterVL Pro will let you alter any aspect of volumetric light, even to use own projector map! Included SVL Caustic Map plugin enables caustics inside the volume. Since this map is actually faking caustics effect, rendering times are pretty close as rendering with Shadow Maps.
For the most demanding tasks, built in finalRender suport will provide interface to the special effects such as raytraced caustics.