Hello, I have been running into an issue with certain vray proxy objects having issues rendering. They have black/dark areas within the render. These areas flicker a bit through the animation. On some building objects, they disappear after the building starts its breaking animation.
The error seems persistent through AOVs as well
normals
multimatte
Changing the scale of objects or repositioning the camera simply changes the shape/positioning of the errors.
The errors are independent of the shader as they still appear with the default material applied and they remain solid in the alpha channel.
The proxy file itself is fairly large (10GB) as it is a 200frame sequence that contains a couple 100k faces and it was created with the same version of vray that I am rendering with. I have tried pulling the file through both the network and accessing it from a local path. It does not appear affected by GI as it persists when GI is disabled and same goes for DR. Turning on “Show whole mesh” doesn’t show any visible mesh issues in viewport, and if I render the full surface with Maya Software, I do not see the errors.
The geometry itself is a fractured object that has a destruction simulation baked on which was then all exported as a vray proxy for smaller scene sizes and quicker render times (less scene translation time). The errors in the render are reminiscent of view clipping issues that you get when faces are closer together which the fragments may be causing. So perhaps this is the problem? Vray renders the original scene (where every fragment is a maya mesh that is animated) without these errors. Is there something that can be tweaked in the exporting, or within the scene the proxy is imported into?
VRay 3.10.01 Maya 2015 Ext 1 SP6
OSX Yosemite 10.10.3
Thanks!
Alex
