Open topic with navigation

# Curvature Procedural

The **Curvature Texture** node can be used to alter the look of the edges of a surface (figure 1).

**Figure 1: The Curvature node applied to a scene object**

**Figure 2: The Curvature node used as the Amount input on a Mix Texture node**

## Curvature Parameters

**Mode**

Determines the type of curvature to sample.

**Strength**

Determines the overall strength of the curvature effect.

**Radius**

Specifies the maximum area affects by the curvature effect.

**Radius Map**

Determines the proportion of the maximum area affected by the curvature effect.

**Offset**

Specifies the offset from the surface used to sample the neighboring geometry.

**Tolerance**

Determines the tolerance for small curvature and small angles between polygons

**Spread**

Controls the ray direction with respect to the normal of the surface where 0 means the curvature is sampled straight in the direction of the surface normal, and 1 means the sampling rays are shot perpendicular to the surface normal.

**Include Object Mode**

Determines which objects should be included in calculating the curvature value.

**Invert Normal**

Inverts the normal direction when calculating the curvature value.

Open topic with navigation