View Full Version : fading opacity with point particles in mr

07 July 2008, 09:17 PM
Can you fade the opacity on point particles when rendering with mental ray (using 2008 sp1)?

Works fine when I plug the particleSamplerInfo into a particleCloud shader on the cloud particle type, but not so on a lambert applied to points. Hmmm...

07 July 2008, 09:18 PM
Wow. Can anything from particleSamplerInfo work on points with mental ray?

07 July 2008, 01:18 AM
Try the help docs, I dont think much has changed in terms of compatibility with PSi node and MR, MR and Maya still struggle to work together.

07 July 2008, 02:26 AM
After work I checked it out and I think point size and position were the only per particle attributes- some of the other new particle rendering modes had a few more attributes, but everything good is missing.

Before I left I switched to blobbies with a tiny radius- .002 or so. For 250,000 particles it renders about ten times slower (with motion blur on both versions) which is disappointing.

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07 July 2008, 02:26 AM
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