Constant Node

Access: Nodes > Basic > Constant

Under the hood, Mari passes around a set of four numbers along a connection between two nodes. The Constant node is solely used as a set of four numbers grouped under one slider, see Constant Node Properties. You can use the Constant node in conjunction with nearly any node, it depends on your workflow. For example, you can use it to adjust the position or color information, or you can use it as a number to change the value of another node, for instance, a shading node.

Constant Node Inputs

No input.

Constant Node Properties

Constant floating point control	Changes the value of the RGB or RGBA Component.
Component dropdown	Select whether the Constant value is used for the RGB or RGBA Component.

Note:  For more information on the Node tab in the Node Properties palette, See Node tab.

Constant : Node Graph Workflow Example

In this example, we are going to use the Constant node to make changes to the Glossiness channel of the BRDF shader.

1.

Create a Color node and connect it to the Diffuse Color input of the BRDF node.

Connecting a Color node to the Diffuse Color input of the BRDF node to texture the object

2.

In the Color node's Node Properties, change the color to red.

The object is now red.

The Color node gives a red texture to the object.

3.

Create a Constant node and connect it to the Glossiness input of the BRDF node.

Creating a Constant node and connecting it to the Glossiness input of the BRDF node.

Notice how moving the Constant slider of the Constant node (see Constant Node Properties) changes the Glossiness of the surface.

Adjusting the Constant slider to change the glossiness of the surface.

 

 

Related Nodes

• UV Node

• UV Mask Node

• Tiled node