Vray 6.1 c4d window preview and vfb window preview cannot apply masking effects

[123456_]

Can you see that the two windows have different effects? Is this a bug

[viktor_angelov]

Hello 123456_

Thank you for raising this topic.

The Viewport Interactive Rendering is allowing us to quickly preview the results and is not supposed to mimic precisely the VFB outcome.

We would be interested to know why would you need the Viewport Interactive to show the masking effects?