Quantize
A continuous range of values becomes a few discrete output values.
This modifier layer is used to convert the 0%-100% value range into constant value ranges. If an underlying layer only specifies 40%, for example, 2 steps will not be enough and you will have to increase the number of steps.
You can find an example quantization scene here with the shader effector.
Example
A spherical field with a linear falloff in value is quantized:
