Use the translucency options in the VRayMtl material instead.

This shader is not supported by V-Ray using it is not recommended.

This shadow type does not work with V-Ray using it is not recommended as it can lead to artifacts in the image. Instead, use the Dome mode of VRayLight or the GI Environment override option in V-Ray's Environment Settings rollout. The standard 3ds Max skylight is not supported by V-Ray, and V-Ray prints a warning about this if you attempt to render it. 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.

Vray 5 for 3ds max 2019