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Tag: melt

Houdini Volume Gradients are Like Surface Normals

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.

Published 15 October, 2021
Categorized as Technical Tagged erode, gradient, Houdini, melt, normal, volume, volumegradient, VOP

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.

Published 28 May, 2020
Categorized as Technical Tagged diffusion, FLIP, Houdini, melt, VEX, viscosity
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