Gidday

Due to a marvellous little feature of Viz there is apparently nothing we can do about the collapse  of Viz when we try to render in Light Studio. This feature is something that AutoDesk tried to implement to help people, but according to one expert I consulted it is a feature that many users of Viz worldwide are complaining about! So if you are members of the architectsrule.org collaborative because you have downloaded Viz/Revit etc - please complain! Now! LOUDLY! Everyone! I could have done with more time to prep my travel and your classes than trying to solve their problems.

So:

WHAT TO DO?

fortunately the answer is simple: use 3DS MAX 

The interface inside the program is much the same.

The material editor, the renderers, the sun system for Light STudio etc are all the same.

As we have 30 licenses of Max and 90 of Viz, please only use this program if you have had Revit render problems with Light Studio in Viz...

Good Luck! Hope no more issues come out of the woodwork to bite us in the soft unprotected regions ...

M