Clamp 0 1 scalar

The Clamp 0 1 family of nodes allow you to clamp, or restrict, the values of the colour or scalar coming into the Input between 0 and 1. If the value is less than 0 it will become 0. If the value is greater than 1 it will become 1. The clamping is done component-wise for colours. Here is an example using a colour with the following values:

 

Input.red is -1

Input.green is 0.5

Input.blue is 2

 

After clamping the colour will have these values:

 

Input.red becomes 0   (-1 was less than 0, so it becomes 0)

Input.green remains 0.5   (0.5 is between 0 and 1, so it's unchanged)

Input.blue becomes 1   (2 was greater than 1, so it becomes 1)