Houdini - Procedural Cave Generator
I've been really focused on Houdini procedural generation lately. As a little project, I made a very simple rock generator, which then grew into a stalactite generator, which then grew into a cave generator. There's still more stuff I would like to add to this, but I have other things I want to build first.
Sorry for the viewport previs with the animation, but it would have taken way too long to render it out. 
simple cave setup with mask generators for the scatter elements and shading
mask modifier for extra deformation at stalactite bases.
simple stalactite digital asset scatter setup with randomization for each
scatter stalactite digital asset at point locations. Each one has random values for variation (bottom and top are the same digital asset).
mask for cave wall deformation, excluding the stalactite points and ground.
mask for wet ground where water would pool at low points. Used for tinting of cave floor, rubble scatter and stalactites on the ground
cave volume and floating dust (not actually rendered)
emissive lighting is generated from volume filling the glass shaded crystals with points, which have an emissive shader on them. Density and scale of points illuminate more or less, which allows the bigger crystals to emit more light than small ones.
