motion blur behind glass

[Rudinie]

I'm trying to model a cockpit from a plane and i ran into this issue: The motion blur of the propellor works fine, until i put the windows in the cockpit and assign a glass shader to it. This causes the propellor to lose all blurriness. Why does mb not work behind a glass object?

I could offcourse render out the propellor on a seperate Take but that complicates things more than i would like.

I hope i'm just overlooking a simple setting in the glass shader or something like that.

[symek]

I'm trying to model a cockpit from a plane and i ran into this issue: The motion blur of the propellor works fine, until i put the windows in the cockpit and assign a glass shader to it. This causes the propellor to lose all blurriness. Why does mb not work behind a glass object?

I could offcourse render out the propellor on a seperate Take but that complicates things more than i would like.

I hope i'm just overlooking a simple setting in the glass shader or something like that.

You need to turn on ray trace motion blur by adding vm_traceblur property to your ROP driver. LMB on Gear Icon of Parameters Pane -> Edit Rendering Parameters.

cheers,

skk.

Edited May 18, 2009 by SYmek

[Rudinie]

You need to turn on ray trace motion blur by adding vm_traceblur property to your ROP driver. LMB on Gear Icon of Parameters Pane -> Edit Rendering Parameters.

Great, that works! I will need to adjust the sampling rates a bit to achieve the same results but that's a small detail. Thanks for helping me out so fast.

Rudi