Light cache on detailed geometry

[voytov]

It's not an issue, its rather a problem of approach:
Generally the better looking/detailed trees and grass are, the more the Light Cache computation takes.
I wonder if anybody knows any good practice for fighting this effect (any "golden rule" on light cache parameters, choosing some other GI engine or anything else..)
?

[soulofsound]

Re: Light cache on detailed geometry

I always thought it was displacement taking so much time. Thanks for pointing this out to me!

[bdancer]

Re: Light cache on detailed geometry

Proxy?

[voytov]

Re: Light cache on detailed geometry

Well, the situation is:
I have cool, big, detailed tree. Even with single occurance of this model the render time is about 4x more of what I get when rendering without trees. The leaves (although with 0/255 opacity map) are the main element slowing down things.
I think I need to find some "smart" way of setting up light cache for that, because I feel that once I do multiply that (using proxies) I'll get "never ending story"..

BTW. I observed dramatic slowdowns very similar to "displacement problems". That was with dense foliage where leaf-faces were over sized and colliding with few or more neighbor faces (they were banners mapped with the image of a group of leaves).