Whether SkinnedUnlitProgram.dispose has run.
Deletes the GL program (§83). Idempotent; live context only.
Uploads the material colour, scaled by its opacity.
Optionalopacity: numberSelects the map and vertex-colour multipliers, mirrored on change.
Uploads the draw's joint palette (§54). Unconditional — a palette changes per skeleton per frame, so there is nothing to mirror.
Makes this the current program.
StaticcreateCompiles and links the program — UnlitProgram.create's contract (§89).
The skinned flat-colour pipeline (§54, §57; RFC 0003) —
UnlitProgram's contract plus SkinnedUnlitProgram.setJointMatrices. See that class for every inherited rule (mirror-at-GL-initial features, lazy sampler, dispose-on-live-context-only); only what skinning adds is documented here.