Render artifacts when foreground tree is set to invisible

[DPS]

This happen frequently - and tends to be most noticeable when invisible trees are places in front of renderable objects. You can see the black splotches in the attached render.

[Neilg]

I think it's to do with max transparency levels, try raising it.

[jacksc02]

Its also intersecting geometry.
Try raising the secondary ray bias to 0.01

[DPS]

Nice one guys, problem solved. Thanks

[alexyork]

Nice one guys, problem solved. Thanks

How? For future reference.

[Pixelcon]

Raising the max transparency levels in global switches is what fixes this for me...

[DPS]

That did the trick for me too.

[alexyork]

Good to know - thanks.

[vlado]

Are those trees invisible for the camera only?

Best regards,
Vlado

[DPS]

They're invisible to the camera but not to reflections.

[vlado]

Ok. We have a solution for V-Ray proxies for this specific case in the latest 3.0 builds; I hope to be able to do it for normal geometry instances too.

Best regards,
Vlado

[DPS]

Awesome, thanks. I failed mention that in this case, and most other cases, invisible objects tend to be trees and the like which are vray proxies.