Documentation / Node reference / geo nodes
Binds a skin mesh to a tetrahedral cage, so a simulation of the cage can drive it.
Physics
Stores, on every skin point, the tetrahedron of the rest cage it sits in and its barycentric weights inside that tet. geo/cageDeform then rebuilds the skin from those weights against the SIMULATED cage, every frame — which is how a render-resolution mesh follows a much coarser soft body. The output carries the bound skin AND the rest cage, so it wires straight into geo/cageDeform's first input. Points outside the cage bind to the nearest tetrahedron rather than being dropped.
| Name | Type | What it does |
|---|---|---|
| group | String | Restrict the binding to a point/primitive group of the skin. Empty = bind every point; unbound points are passed through by geo/cageDeform. |
| cageGroup | String | Which tetrahedron object in input 1 is the cage, when several are merged in. Empty = the first one found. |
| mode | UInt8 REPLACE_CAGE · KEEP_CAGE | What geo/cageDeform does with the cage once it has rebuilt the skin: drop it (the default — raw tetrahedra do not render) or hand it on, to see what the simulation is doing underneath. |
Scenes you can open in the editor that teach this node.
A sphere dropped as a soft body, so it squashes when it lands. What the solver simulates is a coarse tetrahedral cage, and the sphere you see is rebuilt from wherever that cage ends up.
geo/PhysicsSolver geo/PhysicsSoftBodyAttributes geo/Tetrahedralize geo/CageCapture geo/CageDeform
This page is generated from the engine, so it describes the release you can download. The same text is in the editor's Help panel next to the node itself.