# Normal Curvature node

**Left Toolbar** > **Normal Nodes** > **Normal Curvature**

The Normal Curvature node finds the average curvature between the normals around each pixel.

**input**

Img

**output**

Curvature

Convex

Concave

## Procedure

### To generate the Curvature image from a Normal image:

On the left toolbar choose Normal Nodes > Normal Curvature. >

Drag the Normal Curvature icon into the Node Graph.

Connect a **Normal** image to the input socket in the Normal Curvature node.

Connect the Output: **Curvature**, **Convex** or **Concave**.

## Inputs

A Normal Image.

## Outputs

**Curvature**

A monochromatic image where 50% gray represents flat areas, white represents convex areas, and black represents concave areas.

**Convex**
A monochromatic image where black represents flat areas and white represents convex areas.

**Concave**
A monochromatic image where black represents flat areas and white represents concave areas.

## Attributes Panel

**Radius**
Defines a circular area around each pixel that is measured for curvature.

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