this is a tut on making cg hair but thats not why i’m posting it.
it mentions “clip maps”
There are enormous advantages to using a clip map in this application. Clip maps are seen by shadow map lights (transparency mapped objects are seen as pure solids), plus clip maps render much more quickly than transparency mapped objects.
this would be a great addition to blender. if i understand it correctly its a texture map that is set to effect transparency except that when rendered your get correct shadows,
since its works with shadow maps thats not ray tracing right?
anyone know if this feature could work with blenders render engine?