TimberGEN is a production-grade procedural tree generator for Unity. Build trunks, branches, leaves and root flares with a non-destructive modifier stack, LODs, billboards and FBX export.TimberGEN includes shaders and materials for both HDRP and URP. After import, run Window → TimberGEN → Render Pipeline Swap to match your project's pipeline. The Built-in Render Pipeline is not supported. HDRP is recommended for the full feature set, although URP features will follow soon.TimberGEN is a fully custom, SpeedTree-style procedural tree generation system built natively for Unity. Design trees visually inside a single powerful editor window — tweak any parameter and see the result update live.Every tree is built from a hierarchy of generators (Trunk → Branches → Leaves, plus an optional imported root-flare mesh). Each generator can be driven by custom curves and transformed through a stack of non-destructive modifiers, so you can get from a rough silhouette to a final hero tree without ever rebuilding from scratch.TimberGEN ships with HDRP and URP shaders out of the box, a built-in billboard baker, automatic LOD generation, collision building, and a clean FBX export pipeline so your trees drop straight into any project — games, archviz, cinematics, or real-time environments.Whether you need a single hero tree or a full forest of variations, TimberGEN gives you complete artistic control with production-ready output.• Procedural generation of trunks, branches, leaves and root-flare base meshes• Hierarchical generator system with string-based attachment (branches attach to trunk rings, sub-branches attach to parents)• Non-destructive modifier stack — Shape modifiers (Bend, Curve, Gravity, Spiral, Twist, Wave, Radial Noise, Displacement Map) and Leaf modifiers (Bend, Color, Curl, Gravity, Jitter, Rotation, Scale)• Fork system for Y-shaped multi-stem trunks with independent spines• Branch distribution modes: Random, Spiral, Whorled, Alternate• Leaf geometry modes: Billboard, QuadCross, TriCross• Custom curve editor with multiple tangent modes and preset library• Leaf card atlas editor — design custom leaf polygon geometry• Automatic LOD generation with configurable reduction• Integrated billboard baker (HDRP and URP)• Texture tools: bark texture baker, alpha channel baker, mask map baker, height map capture, seamless tiling• Capsule collider generation along branch spines• FBX export for use outside the editor• HDRP and URP shaders included, with one-click render pipeline swap• Presets browser with ready-to-use trees: Pine, Fir, Oak, Birch, Beech, Aspen, Maple, Palm and more• Domain-reload-safe runtime component• Full source code included
