The Gradient node is a very useful starting primitive, especially when displaced or modified to create randomness. It is also a very useful mask generator.
It creates three distinct types of gradients: Linear, Radial, and Helix. Several properties shown below are unique to each gradient type.
|Linear : A ramp going from lowest to highest.|
|Radial : A soft, radial "bump".|
|Helix : A climbing, spiral or helix gradient.|
|Scale||The scale of the gradient.|
|Sawtooth||On allows a lower scaled Linear gradient to create a repeating or sawtooth pattern.|
|Direction||The angle of the Linear gradient.|
|None : Edge pixels are left blank.|
|Mirror : Edge pixels are mirrored.|
|Repeat : Edge pixels are repeated.|
|Edge : ???|
|X / Y||The center point on the Radial gradient.|
|Start / End||Where the Helix will start and end.|