mesh_isotropic_remesh — 3D resolution op

データ種: meshmesh

呼び出し: import fullseye as fs; fs.ledger.mesh_isotropic_remesh(V, F, target_edge, iterations=5, project=True, relax=0.5) (実装を直接呼ぶなら import meshres; meshres.mesh_isotropic_remesh(V, F, target_edge, iterations=5, project=True, relax=0.5)、台帳から引くなら ops3d.get("mesh_isotropic_remesh"))

使い方

Incremental isotropic remeshing to a uniform *target_edge* (`mesh`).

Botsch & Kobbelt, *A Remeshing Approach to Multiresolution Modeling*

(SGP 2004): per iteration (1) split edges longer than 4/3·L, (2) collapse

edges shorter than 4/5·L into their midpoint when the link condition

holds, no incident edge would exceed 4/3·L and no face flips, (3) flip

edges that bring the four valences closer to 6, (4) relax each vertex

toward its neighbours' centroid in the tangent plane (*relax* ∈ [0,1]),

(5) project the result back onto the input surface (closest point on

the original triangles, *project*=True) so the shape is not smoothed

away. Boundary vertices are pinned. The result is a triangle mesh whose

edge lengths cluster around L regardless of how the input was sampled —

the fix for "coarse and dense regions treated alike". Measured on a

pole-clustered UV sphere: edge p95/p5 from 5.6 to < 1.5, area within 2 %,

closed manifold preserved (`tests/test_meshres.py`).

背景知識ガイド(この op の手前にある物理・規約)

depth_sensors — 深度センサの知識 — 測距原理・実機の値・欠測の出方

参考(サンプルデータ・文献)

• サンプルデータ カタログ(DL URL / ライセンス) — 2-D は skimage.data(BSD/public)+ 合成、3-D は実データ源(Stanford/PDS 等)の DL URL。

• 演算子の来歴・参考文献 — この op 族の元になった研究/手法の出典。

実行できる例(この op を実際に呼ぶ検証済みサンプル)

mesh_resolution_demopy -3.11 examples_3d/mesh_resolution_demo.py

型が繋がる次の op(mesh を入力に取れる)

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

同カテゴリ(resolution)

mesh_edge_stats · mesh_detail_map · mesh_split_long_edges · mesh_sample_points · mesh_lod_chain · mesh_select_lod · mesh_reduction_report · mesh_decimate_preserving


*Provenance: meshres.py — 3D operator registry. この per-op ノートは tools/opdocs.py md が自動生成(手編集しない)。*

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