Material Maker

Material Maker is a free and open-source, procedural texture authoring tool based on Godot Engine. Its user interface is based on Godot's GraphEditor: textures are described as interconnected texture generators and operators.

Materials are defined as graphs where nodes create or transform textures, and can be exported for the Godot, Unity and Unreal game engines. It can be used to create different kinds of materials, including static or dynamic PBR, or raymarching based.

There are more than 200 available nodes, and new nodes can be created either by connecting and grouping existing nodes, or by describing them in GLSL.

Material Maker can also be used to paint PBR materials on 3D models. Brushes are also described as graphs using the same nodes as PBR materials plus a few painting specific filters and transforms that depend on the mesh geometry.