Opacity

[leoviale]

Hi guys, I'm doing some test renders, with some trees, and I have a problem using opacity materials. Rendering leafs without opacity takes less render time. How is it possible? If i use a complete 3d tree it renders faster than a low poly tree with opacity leafs. Is there any setting or it's just a vray common problem?

[Dave Oliver]

could there be some other setting in the material other than the opcaity that cases it to take longer?

Edited February 20, 2009 by dave5264
um

[JonRashid]

Doesn't the opacity have to use raytracing?

[Nic H]

turn off blur and bitmap filtering in the opacity map

vray is faster with geometry

[leoviale]

Yeah, i completely replace my trees, to hi poly models, it's weird to see lower render times with hi poly trees w/o opacity, than a low poly model with opacity leafs... somehow there should be a way to fix that.

[mikes8500]

Hi Nicnic

 

I'm trying to optimize some Opacity Maps, where do you turn off Blur, I just see a spinner that reduces it to .01

[leoviale]

Also changing the filter to none instead of pyramid or whatever is selected, helps allot.