Per-frame callback returning the active skinned draw items, mirroring
SkinnedGeometryFeature's drawItems option. Omit for a scene with
no skinned meshes. Skinned items without a previousJointMatrices field
contribute model-matrix velocity only (per-bone deformation goes
unrecorded).
Per-frame callback returning the active skinned draw items, mirroring SkinnedGeometryFeature's
drawItemsoption. Omit for a scene with no skinned meshes. Skinned items without apreviousJointMatricesfield contribute model-matrix velocity only (per-bone deformation goes unrecorded).