forked from bartvdbraak/blender
9231ff4160
* Viscoelastic springs between the fluid particles can simulate all kinds of viscous and elastic substances, such as jelly and honey. This is achieved by creating springs dynamically between neighboring particles and adjusting their rest length based on stretching/compression. * This nearly completes the currently intended functionality for particle fluids. The last missing thing is a surfacing extraction algorithm, which is needed for a proper representation of a sph fluid. * I also cleaned up and renamed some of the fluid parameters to make the ui a bit easier to understand. * One addition to the patch is an option to use "initial rest length" for the springs, which uses the lengths between the particles at the time of spring creation as the spring rest lengths instead of interaction radius/2. This makes the fluid keep it's original shape better (good for very viscoelastic materials), but can create large density differences inside the fluid (not really physically correct for a fluid). * Viscoelastic springs are stored in point cache as extra data. |
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