Bump Mtl

The V-Ray Bump Material gives the ability to add bump map and normal map effects when using any material.

Connect a material into the V-Ray Bump to add additional bump or normal map functionality. Stacking multiple Bump materials together can create a more complex surface material by allowing the use of several bump and/or normal maps together easily.

This section lists input sockets that are not found in the Parameters tab but only as inputs for the node.

Base Material – Allows the user to select the base material to which the bump/normal effect is added.

Bump Tex Color – Specifies the bump/normal texture node that is used.

Map Type – Allows the user to specify whether a bump map or a normal map effect is added to the base material.

Bump Map – Uses a bump map to determine the bump effect of the material.
Normal map in tangent space – Uses a tangent normal map to determine the bump effect on the material.
Normal map in object space – Uses an object space normal map to determine the bump effect on the material.
Normal map in screen space – Uses a screen space normal map to determine the bump effect on the material.
Normal map in world space – Uses a world space normal map to determine the bump effect on the material.
From texture bump output – Uses the texture bump output to determine the bump effect on the material.
Explicit normal – Sets the normals to adhere to a specific value rather than being dependent on a face. As a result, any changes made to the position of a face do not affect the normals, which remain unchanged. 

Bump Multiplier – A multiplier for the bump/normal effect.

Bump Delta Scale – Scale for sampling the bitmap when using bump mapping. The exact value is calculated automatically by V-Ray, but can be scaled here.

Bump Shadows – When enabled, V-Ray considers the bump maps when rendering shadows produced by objects with the bump material applied to them.