This shader node setup allows users to blend up to three different materials on a single mesh using vertex painting. The system utilizes the red, green, and blue vertex color channels to control the distribution of each material layer. It incorporates heightmap data to ensure natural transitions between different surface types. The master shader exposes customizable parameters directly in the material properties tab for quick adjustments. The setup provides a workflow similar to game engines and is compatible with Cycles for true displacement mapping and EEVEE for real-time visualization with normal maps. The provided file contains the node setup without any included textures.