VRayMtl Bump and Normal Mapping

The Bump and Normal Mapping rollout is part of the VRayMtl parameters.

Parameters

Map Type – Uses a bump or normal map to determine the bump effect on the material. See the Bump and Normal Mapping in V-Ray article to see a detailed explanation of each map type and its typical usage.

Bump Map – Uses a bump map to determine the bump effect applied.
Normal map in tangent space – Uses a tangent normal map to determine the bump effect applied.
Normal map in object space – Uses an object space normal map to determine the bump effect applied.
Normal map in screen space – Uses a screen space normal map to determine the bump effect applied.
Normal map in world space – Uses a world space normal map to determine the bump effect applied.
Explicit Normal – Uses a world space normal map as the bump normal without conversion, regardless of whether the input is a color or vector texture.

Map – Allows the user to connect a texture for the bump or normal map. Leaving this unconnected turns off bump/normal mapping.

Bump Mult – A multiplier for the bump map effect.

Bump Delta Scale – This parameter can be decreased to sharpen the bump and increased to blur it. Available only when Map Type is set to Bump Map.

Resolution-Independent Bump – Ensures consistency of the bump effect regardless of the camera’s distance or rendering resolution. The texture’s details don’t vary when zooming in or out on the object. Note that when using a File texture, you must set the Filter type to Off.