If you have a Hose object that is Bound to Object Pivots, and render it with mental ray, it will not motion blur. I noticed this in MAX 2008 when animating the Trams for Edinburgh. I used hoses for the bendy bits in between sections. I didn’t find a fix for it at the time, other than using Camera Multi-Pass Effect (too slow).
It’s not all bad though. I just dicovered that it can be easily fixed by adding a Turn to Mesh modifier onto the Hose.

The film is Here. It’s too low-res to see what I’m talking about (and encoded to 4:3 not 16:9 for some reason), see the still, mines
the Tram showcase, the Project film was done by someone else in Maya.
http://www.tramsforedinburgh.com/
The Production Shaders worked a treat on this job, thanks Zap if you read this.

Bugs Master Thread:-
http://area.autodesk.com/for...ected-bugs-master-thread/

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Samab 04 April 2008 10:27 AM

The Production Shaders worked a treat on this job, thanks Zap if you read this.

I am, actually!  Thanks!

Looks great! Well done.

/Z