实验 42:A36 Conflict Face Removal

用 A35 face mask 执行最小真实 mesh edit,并证明直接删除冲突面会破坏拓扑

实验定位 负结果但决定性

A36 是 A35 之后的第一个真实 mesh edit 原型:直接删除所有标记为 surface_conflict 的 faces,并输出 conflict-removed OBJ/PLY。它的目标不是立刻提升质量,而是检验 face mask 是否能驱动实际编辑,以及最简单的删除策略是否可用。

结果很明确:mean removed face ratio=0.4460,mean boundary edges Δ=8201.5,mean component Δ=94.5,watertight_after_rate=0.000。mask 可以驱动编辑,但直接删除冲突面会破坏拓扑。

实验设计(Image-2 风格)

实验设计图:A36 conflict face removal
实验设计图:A36 conflict face removal
模块设计图:deletion is not replacement
模块设计图:deletion is not replacement

模块设计(Image-2 风格)

Edit Operator

  • 输入:A35 face label mask。
  • 操作:删除所有 surface_conflict faces。
  • 输出:mesh_conflict_removed.obj 和带标签的 PLY。
  • 评估:faces、watertight、boundary_edges、nonmanifold_edges、components。

Why This Negative Matters

如果最简单的删除策略可行,后续就可以直接做 conflict removal;但 A36 证明这会制造开放边界和碎片组件。因此 A37 必须做 patch replacement / smoothing / fill,而不是删除。

实验结果(表格)

caseremoved ratiokept ratiobefore facesafter facesbefore watertightafter watertightbefore boundaryafter boundaryboundary Δcomponent ΔOBJPLY
gso_002_input40.19720.8028234960188631TrueFalse05895589559/home/jiachen/TRELLIS/experiments/nonorthogonal_gpt_orthoview/outputs/data_survey/vggt_spatial_adapter/support_guidance_a36_conflict_face_removal/gso_002_input4/mesh_conflict_removed.obj/home/jiachen/TRELLIS/experiments/nonorthogonal_gpt_orthoview/outputs/data_survey/vggt_spatial_adapter/support_guidance_a36_conflict_face_removal/gso_002_input4/mesh_conflict_removed_face_labels.ply
gso_008_input40.69480.3052827994252708TrueFalse01050810508130/home/jiachen/TRELLIS/experiments/nonorthogonal_gpt_orthoview/outputs/data_survey/vggt_spatial_adapter/support_guidance_a36_conflict_face_removal/gso_008_input4/mesh_conflict_removed.obj/home/jiachen/TRELLIS/experiments/nonorthogonal_gpt_orthoview/outputs/data_survey/vggt_spatial_adapter/support_guidance_a36_conflict_face_removal/gso_008_input4/mesh_conflict_removed_face_labels.ply

可视化结果

A36 删除/保留面比例
A36 删除/保留面比例
A36 拓扑代价
A36 拓扑代价
gso_002_input4 conflict-removed mesh projection
gso_002_input4 conflict-removed mesh projection
gso_008_input4 conflict-removed mesh projection
gso_008_input4 conflict-removed mesh projection

实验结论

下一步想法