Invisible objects are ... visible !

[AltoR]

I all

I have a simple but annoying problem: proxy trees close to the camera are invisible (right click > Object Properties > Visible to camera ticked Off), but when I do the render, strange black spots show up ... note that they don't appear in the alpha channel (see the screenshots).

Anybody has an idea on how to fix it please ?

Thank you in advance, I really need your help

[super gnu]

is it related to the vraytoon you have in there? does it still happen if you turn off vraytoon? if so you could try manually excluding the trees from the toon system.

[AltoR]

Thank you for your answer super gnu but I don't use VRayToon in my scene. I rendered it using the "OvRide Mtl" option but even when I turn it off, the problem remains the same, see the screenshot:

[Laserschwert]

I think these artifacts are linked to the "transparency levels" in the render settings.

[AltoR]

What do you mean "transparency levels" ? I don't know these settings ...

[AltoR]

I just saw it in the Global switches: "transparency levels" (never noticed it before ...). Here are my settings (default ones I think):
Filter maps: On
Filter maps for GI: Off
Max transp. levels: 50
TRansp. cutoff: 0,001

Scene units are cm
Trees are about 14m height

[AltoR]

Excellent Man !! Thank you: I put TRansparency levels to "100" and no more black spots, Big thanks