# Sign Node


![](../img/sign.png)

### Description

Outputs one, zero, or negative one according to the sign of the input scalar value or individual components of input vectors.


- 1 is returned if input is positive
- 0 is returned if input equals to zero
- -1 is returned if input is negative


## Usage Examples

**Example 1**

[![](../img/sign_ex_1.png)](../img/sign_ex_1.png)


The **Sign** node takes Vertex Normal coordinates in *World* space and provides *Emission* color values for the Material changing the color from black (0,0,0) to white (1, 1, 1) across the surface, depending on the sign of Vertex Normal components.