Trunk Decoration

Trunk Decoration puts a prepared trunk mesh on a Grow, such as a scanned trunk made ready with Create Graft Mesh, and the tree grows on from it. Unlike other decorations, it feeds back into growth: the Grow extends the trunk from the mesh's profile, and further Grows carry on with a Surface Decoration. Trunk Extension walks through the workflow.

Setting one up

Select the Grow and choose Trunk Decoration from the toolbar's Decorate menu. Geometry File points at an example trunk by default, and while it loads a mesh the first input is ignored. To use your own trunk, clear Geometry File and wire the mesh into the first input, Mesh (Optional), as the Bake output is in the scan workflow; or point Geometry File at a saved mesh. The cross-sections to grow from travel with a mesh from that workflow. The second input, Profiles (Optional), is read only when the mesh doesn't carry them. Uniform Scale and Rotate place the mesh.

Material

The mesh keeps its own material. Turn on Override Material to texture it here instead, with Colour, Roughness, Normal and Height maps.