1 Commits

Author	SHA1	Message	Date
Dion Moult	f2b655fcf6	ifcviewer-full: print object volume on click via lazy GPU readback ... Adds neutral primitives on ViewportWindow (readbackMeshTriangles, findInstance) so consumers can compute per-object geometry queries without the library retaining a CPU triangle copy. Measurement.cpp in ifcviewer-full uses them to sum signed-tetrahedra in mesh-local space, weighted by |det(placement_3x3)| per instance for mapped-item scaling. Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>	2026-05-07 11:25:30 +10:00