I’d seen volume gradients used in a few places and not really understood them. Houdini help says: “the gradient is a vector pointing in the direction of increasing volume values.” Hmm. Nothing if not laconic.
Tag: melt
Melting Objects by Varying Viscosity in Houdini FLIP
Converting a mesh into a highly viscous FLIP fluid in Houdini, then selectively lowering the viscosity of certain areas by raising their temperature, is a fairly simple way to simulate a melting object, with reasonable art-directability by means of noising and animating an invisible heat source.