Smart materials on UVless meshes in Unity3d HDRP

Smart materials in Unity3d HDRP using the layered lit shader. The materials blend between different layers using vertex color.
https://github.com/12-gd/vertexcolorMaskDemo

Since the model has no UVs, the shader uses world-space triplanar mapping

the curvature map is baked into the vertex colors, then retouched by hand

the curvature map is baked into the vertex colors, then retouched by hand