3D Render Artifacts

Hi!
I encountered a problem with 3D render (Davinci resolve 16,17, fusion studio 16,17)
The problem is described in the photo, graphic artifacts!
I think this happen when two planes on the model effectively share the same position in 3D space, how can I fix this?

Offset one of the planes by a tiny bit

What Mario said. This is called z fighting if you want to look it up, and depending on your camera settings it can show up even if there is a small difference in position.

Offset one of the planes by a tiny bit

I understand this, but i can't edit model in fusion, when i use software render, this problem disappear, but it is very slow(

Offset one of the planes by a tiny bit

I understand this, but i can't edit model in fusion, when i use software render, this problem disappear, but it is very slow(

So it's not a Fusion generated plane but an import from another 3D software? Remodel the object in another 3D modeling software as I described. Or try changing transparency or shading mode in Renderer3D.

Or actually add a Fusion's planar shape and put it slightly in front of the offending plane in the imported object.