Every-Nth-triangle decimation applied to fit the LOD budget (1 = none, layer/geometry detail full).
Field-parallel to the toolpath RenderStillResult.decimationApplied so a card badges "simplified for
size" the same way. Always 1 until model LOD lands (DD-022 Phase 2); reserved so the field is stable.
Total instance placements drawn (DD-022): > objectCount when the source reused geometry (a
full-sheet plate of repeated copies), for an "N copies" badge. 1 per object when nothing is reused.
Whether source colors/materials were real — 'unavailable' means the neutral default was used.
OptionalplatesDeclared plate structure (DD-025), present only when the source explicitly declares plates
(capabilities.plates === 'known'); absent for a single/plate-less source. active is the source's
declared active plate id when present.
Stable identity for caching:
hash(source) + options + envId.