Thin Objects Disappearing and Reappearing

[jlbair]

I have a very thin object (specifically the antenna on a car) which disappears and reappears constantly throughout the render. Only portions of the antenna pop in and out, such as the top half or the middle section. This problem does not manifest with the scanline renderer. Any thoughts as to why this might be happening?

The object is a solid mesh with a chrome texture applied (VRayMtl). I am using the Adaptive subdivision sampler set to: min -1, max 3, thresh 0.1. VRay is version 1.09.03m Adv.

Many thanks,
John

[suurland]

Either raise you min to 0 or 1. And/or use "rand".

/Thomas

[jlbair]

Thanks, that did the trick!