Lukas Tönne
ba8b8ec998
on itself. This uses the same voxel structure as the hair smoothing algorithm. A slightly different method was suggested in the original paper (Volumetric Methods for Simulation and Rendering of Hair), but this is based on directing hair based on a target density, which is another way of implementing global goals. Our own approach is to define a pressure threshold above which the hair is repelled in the density gradient direction to simulate internal pressure from collisions.