vfs6; Wrapped materials will fail when the atmospheric environment or ambient fog is turned on.

[cq_x]

vfs6;当大气环境或环境雾打开时，包裹的材料将失效。

[konstantin_chaos]

Hi cq_x ,

This is a known limitation and not something we can easily change.
The thing is that after the camera ray hits a Wrapper / Matte object it samples the Background color directly missing the fog behind the object completely.

Konstantin