After being on the back burner for a few months the texture regions are finally working Lets us draw shapes directly on textures to tag areas by material type, each having unique bullet hole decals, impact sfx, particles, and other surface-specific behavior 👽

Tried adding some cracks below this ice, crazy what a difference it makes compared to the flat texture 🧊

Just needs something lurking below the surface 💀

Here is a little breakdown of the surface shader and how the snow blends into the ice, this setup works in blender but when moving to unity there is one more step. I use an addon called "Vertex Color Master" to convert the two mask color attributes to UV channels leaving only the one for lighting, meshes in unity can only have 1 vertex color channel. The shader is essentially the exact same in unity just with those masks pointing to the additional UVs. There could be a more efficient way to do this but that's the best approach I've found so far. Oh and for the node setup below, I usually turn up the emission strength (showing as 1) to around 4ish which gives the light an illuminating effect