decimate_qem — 3D mesh_process op

• Data kinds: mesh → mesh

• Call: import meshrepair; meshrepair.decimate_qem(V, F, target_faces, protect=None) (or ops3d.get("decimate_qem"))

Usage

Quadric-error-metric edge-collapse decimation toward *target_faces*.

References (sample data, literature)

• Sample-data catalog (download URLs / licences) — 2-D uses skimage.data (BSD/public domain) plus synthetic images; 3-D lists download URLs for real data sources (Stanford, PDS, …).

• Operator provenance and references — the sources of the research/methods this op family came from.

Runnable examples (verified samples that actually call this op)

• mesh_decimate — py -3.11 examples_3d/mesh_decimate.py

• mesh_lod_download — py -3.11 examples_3d/mesh_lod_download.py

• mesh_resolution_demo — py -3.11 examples_3d/mesh_resolution_demo.py

Ops the type connects to (they accept mesh as input)

mesh_to_voxel · mesh_to_points · to_points · fuse_to_voxel · ambient_occlusion · cast_shadow · supersample_mesh · render_beauty

Same category (mesh_process)

laplacian_smooth · taubin_smooth · face_normals · vertex_normals · mesh_area · vertex_curvature

*Provenance: meshrepair.py — 3D operator registry. This per-op note is generated by tools/opdocs.py md (do not hand-edit).*

© 2026 Kazufumi Furuse — Fullseye operator documentation. Licensed under Apache-2.0.