This defines the state of the deformation. If set to 0%, there is no melting. If set to 100%, the object is fully molten. To change this value interactively, drag the orange handle in the viewport.
Surfaces within the Radius setting will melt more slowly than the other surfaces. If you set the Radius to 0, the object will be completely flat.
Defines the variation in downwards motion.
Defines the variation in outwards motion.
Defines the final width of the recipient object relative to its original width. The default value is 400%. Imagine a melting ice cube — the width of the puddle left behind is naturally much larger than the original width of the ice cube.
The higher you set this value, the more irregular the surface becomes during the melt deformation.