Instead, extended matte/shadow capabilities for V-Ray are available in the VRayMtlWrapper material or in the V-Ray Object settings. The standard Matte/shadow material also does not pick up GI shadows. Specifically, the Opaque Alpha parameter is not supported. V-Ray only partially supports this material. Some of its functionalities are available in the VRayMtlWrapper material. This material is not fully supported by V-Ray using it with V-Ray is not recommended as it can lead to artifacts in the image. V-Ray does not provide an equivalent functionality.
This map is not supported by V-Ray using it with V-Ray is not recommended. This map is not fully supported by V-Ray using it with V-Ray is not recommended, as it can lead to artifacts in the image.