no one knows? ..................
ok another thing...
I read that somebody had problem with shadow when rendering hair animation.
check out http://www.mentalray.com/p207.htmlhttp://www.mentalray.com/p207.html
2.3. Hair geometry
3.1Very efficient storage and rendering of hair. Hair is defined as 1D, 2D, or 3D Bzier curves, and is defined by optimized hair primitives instead of triangles.
3.1Works in conjunction with ray tracing, shadows, motion, etc.
3.1Allows attachment of texture spaces of up to 255 dimensions total, per hair and/or per vertex.
It also says MI 3.1 released in Q12k2. now where's the update in xsi! =P