Refraction for vegetable

[Seabass]

Hi guys! Do you use refraction for leaves of trees and grass? or translucency only...
refraction give more realistic, but use more RAM.
Thanks.

[Cyanhide]

I'm not sure this is "the " way to do it, but with plants I usually copy the diffuse map to the translucency map set it at about 0.2 -0.35 depending on the map.
Sometimes I'l ad a light green color to reflection.

I don't do a lot of close ups, hardly any clients asks me to make an image of a chair leg or something, and over distance it looks fine.
Again this is just me tho, not claiming its the correct way to go about it.

[Seabass]

Problem is that..when we look at the tree and the sun is in front of us, leaves looks good(pic.1).
But when we look at the tree and the sun is behind us, leaves looks very unrealistic!!!(pic.2)
 And i don't know how can I fix it?

[Ondra]

no, NEVER use refraction for leaves

[maru]

Leaves/grass material hints:
https://coronarenderer.freshdesk.com/support/solutions/articles/5000515643

[Seabass]

Yeah... I was reading this.. and making the same. I attached picture shader settings.

[juang3d]

Ondra, why NEVER?

I face the same problem, I don't achieve a very good shader for plants and trees, they end up feeling like plastic plants, the only way I found to make it good was using refraction and a very low glossiness.

Any more help regarding this will be welcom, I'll try to post some pictures from my own shaders/work when I gather time.

Cheers!

[Ondra]

juang3d: there is a lot of possible configuration options, and it seems you just randomly found one with refraction that worked. But you should be able to also find one with translucency.

And generally, screwing up refraction is much easier, and people always want  definitive rules... so the rule is to never use refraction ;)

[juang3d]

Hahaha ok, good though, understood!

Refraction...NEVER!

Cheers.