A procedural mold material created using Blender's shader nodes, designed specifically for the Cycles render engine. The material is packaged in a custom node group that exposes parameters for adjusting scale, mold amount, edge details, colors, roughness, bump, and displacement.

The mold's location and surface growth are determined by an external object controller, such as an empty, which can be repositioned or animated to simulate spreading fungus. The node setup allows users to blend the mold over existing materials by routing the original base material into a dedicated input socket. Because the effect utilizes true displacement to offset the geometry and add volume to the mold clusters, the creator recommends applying it to subdivided or high-poly meshes.