Normal Map Node

The Normal Map node generates a perturbed normal from an RGB normal map image. This is usually chained with an Image Texture node in the color input, to specify the normal map image. For tangent space normal maps, the UV coordinates for the image must match, and the image texture should be set to Non-Color mode to give correct results.

Inputs

Strength

Strength of the normal mapping effect.

Strength is set to 0, 0.5, 1, 2 (from left to right).

Color

RGB color that encodes the normal map in the specified space.

Properties

Space

The input RGB color can be in one of three spaces: Tangent, Object and World space. Tangent space normal maps are the most common, as they support object transformation and mesh deformations. Object space normal maps keep sticking to the surface under object transformations, while World normal maps do not.

UV Map

Name of the UV map to derive normal mapping tangents from. When chained with an Image Texture node, this UV map should be the same as the UV map used to map the texture.

Outputs

Normal

Normal that can be used as an input to BSDF nodes.

Example

The Normal Map Strength is set to 1.