INST_PARTS
Instance flag: drawn in a pose (per-part transforms).
const INST_PARTS: 2 = 2;Defined in: instance.ts:61
INST_MIRROR
Instance flag: the model is mirrored along x (applied after flooring, like a stamped orientation).
INST_SCALE_SHIFT
The instance flags word keeps the model's scale - 1 from this bit up (ModelOptions.scale; 0, so scale 1, for every record packed before scales), where the shader already reads the flags.