Not visible to camera + vraydisplacement

[voltron7]

Hello,

While trying out this nifty tip from Jiri.Matys, I notice what I think is a bug.
Two items had vraydisplacement mod and were set to be "not visible to camera."
Upon rendering those 2 objects appeared as pure black and the displacement seemed to be working.
So I turn displacement mods off and re-render and they behave as expected.
I can get a screenshot if needed.thanks!

edit: Vray Next latest and Max2019 latest SP on win7pro

[matanov]

Is your environment black?

[voltron7]

Yes, and there is one domelight (set as visible)

[matanov]

Can you try raising the max transparency levels? (Render Setup / V-Ray / Global Switches)

[Vizioen]

Why use hide to camera and not camera clipping?

[Neilg]

it is to do with the transparency levels - by displacing the object and looking through it side on youre now ignoring 50+ layers of geometry instead of 2 ish.

[voltron7]

Can you try raising the max transparency levels? (Render Setup / V-Ray / Global Switches)

Thank you slizer, I raised it gradually and around 200, the objects were completely hidden.
Really appreciate the help.

ashley, As for why? I was trying a technique posted by Jiri, and I liked how it worked. Sometimes I will use clipping, too. Thank you.

[Vizioen]

Thank you slizer, I raised it gradually and around 200, the objects were completely hidden.
Really appreciate the help.

ashley, As for why? I was trying a technique posted by Jiri, and I liked how it worked. Sometimes I will use clipping, too. Thank you.

Have you found any advantage above camera clipping?

[voltron7]

just that sometimes it will work fine, other times Jiri's method works better...depending on the camera and geometry every time.