Mesh.UpdateSkin

void UpdateSkin(Matrix[] bonePalette)

Drives the per-frame CPU deformation for a skinned Mesh. SetSkin must have been called first. This walks every vertex, blends the bone transforms by weight, and re-uploads the deformed vertices to the GPU.

bonePalette holds the current world-space transform for each bone, in the same coordinate system the resting transforms passed to SetSkin were authored in. Its length must match the bone count supplied to SetSkin.

Because deformation mutates this Mesh’s vertex buffer in place, two entities driven by different bone palettes need their own Mesh instance — use Copy on a shared source mesh to get per-instance deformation.