Black splotches in the RGB color and alpha channel with invisible Forest Pack objects

I’m getting black splotches over my renders with scattered Forest Pack objects which are invisible to camera. Please check the screenshots below. there’s a hedge in front of the camera. The hedge is hidden to the camera only in “Object Properties”, but it’s still renderable and visible to reflections/refractions. The splotches go away if I delete, hide, or if I disable the “renderable” option, which of course is not good since I need the reflections from the hedge and the GI it creates/blocks. I tried increasing Secondary Ray Bias in V-Ray’s settings from 0.00 to 0.001 and then to even 0.02, but it didn’t make any difference. I’m using the latest V-Ray and Forest Pack versions.

@Alex_M Try increasing Max transp. levels​ in V-Ray Tab/Global Switches

Nice roof man!

If you have these errors it’s mostly due to having Forest Pack (or other scatterer) hidden to the camera or a VrayClipper clipping them. Raising Max Transp Levels to about 500 should fix it.

That did the trick! Thank you both. :slight_smile: