loonghao/py-dem-bones/dem-bones-showcase

Dem Bones showcase

Use only in a disposable Unreal test project with Python and Geometry Scripting enabled. Add the showcase directory and a matching py-dem-bones wheel to the host Python path. The test owns its actors, mesh data, and output directory. It uses an explicit DynamicMesh bridge, not a built-in skeletal asset exporter.

1. Inspect the actual runtime capabilities.
2. Run the showcase in a fresh output directory.
3. Render each verified frame separately; verify all files before encoding GIFs.

For the premium arm and steel chain studio, call premium_preview with operation=inspect, then operation=setup and a matching successful showcase cache. Use 1600 x 900 for the frame 12 hero and 1280 x 720 for the fixed camera 48-frame sequence. Each operation=render call writes one immutable native PNG. Fresh SDK weight and position readback must pass before the studio is created. Two native Loop subdivision levels smooth a separate render proxy; the original numerical mesh and solver metrics retain their accepted topology. Skin binds the Designer BaseColor, Roughness and Normal maps; steel uses native metallic shading.