mesh_isotropic_remesh — 3D `resolution` op

• 数据种类:mesh → mesh

• 调用: import fullseye as fs; fs.ledger.mesh_isotropic_remesh(V, F, target_edge, iterations=5, project=True, relax=0.5)(要直接调用实现,import meshres; meshres.mesh_isotropic_remesh(V, F, target_edge, iterations=5, project=True, relax=0.5);从台账取用则 ops3d.get("mesh_isotropic_remesh"))

用法

面向统一 *target_edge* 的渐进各向同性重网格化(`mesh`)。

> 以下的详细说明为原文 —— 摘要与标题已翻译。

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`).

背景知识指南(该算子背后的物理与约定)

• 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(示例数据・文献)

• 示例数据目录(下载 URL / 许可证) —— 2-D 用 skimage.data(BSD/公有领域)加合成图,3-D 给出真实数据源(Stanford/PDS 等)的下载 URL。

• 算子来历与参考文献 —— 该算子族所依据的研究/方法出处。

可运行的示例(实际调用该算子并已验证的样例)

• mesh_resolution_demo — py -3.11 examples_3d/mesh_resolution_demo.py

类型可衔接的下一个算子(可接受 `mesh` 作为输入)

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

同类别(`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 算子登记表。本条目由 tools/opdocs.py md 自动生成(请勿手工编辑)。*

mesh_isotropic_remesh — 3D resolution op

用法