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#1 · t02 cgal 99
CGAL edge collapse — 99% target
321 tris155 verts99.01% reducedSSIM 0.940729
best 99% result: lowest target-count triangle budget with the strongest above-view silhouette score
Best target-count resultCGAL: 321 tris, SSIM 0.940729.
Runner-upMeshLib: 323 tris, SSIM 0.932797.
Best Blender-nativeExact micro-weld + collapse: 323 tris, SSIM 0.931060.
WarningPlain direct collapse stalls near 96.5%; welding is required to actually hit 99%.
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#2 · t03 meshlib 99
MeshLib decimation — 99% target
323 tris813 verts99.00% reducedSSIM 0.932797
runner-up target-count reducer: exact 323 triangles and similar silhouette behavior to CGAL
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#3 · b05 micro weld 99
Exact-position micro-weld + collapse — 99% target
323 tris156 verts99.00% reducedSSIM 0.931060
best Blender-native target-count result after exact-position weld; simple and repeatable
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#4 · b06 micro weld planar8 99
Micro-weld + planar 8° + collapse — 99% target
321 tris157 verts99.01% reducedSSIM 0.921855
target-count Blender variant showing whether planar cleanup helps after welding; it slightly hurts silhouette
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#5 · b09 voxel 99
Voxel topology reset tuned near 99% target
324 tris166 verts99.00% reducedSSIM 0.916177
informative target-count failure: hits 324 triangles but rounds and changes mechanical character
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#6 · b12 micro weld overshoot 995
Micro-weld + 99.5% reduction stress test
161 tris75 verts99.50% reducedSSIM 0.914267
stress test beyond the ask: 99.5% reduction, useful for knowing the practical lower bound
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#7 · b04 planar15 99
Planar 15° prepass + collapse — 99% target
1,113 tris57,333 verts96.55% reducedSSIM 0.911492
best no-weld direct Blender silhouette, but it stalls around 96.55% reduction because disconnected shells limit collapse
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#8 · b10 top face bias 99
Top-facing surface bias + collapse — 99% target
625 tris36,075 verts98.06% reducedSSIM 0.889497
above-view-biased attempt that sacrifices underside faces first; does not quite reach 99% but shows the tradeoff
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#9 · b01 uniform 99
Uniform collapse — 99% target
1,118 tris57,337 verts96.54% reducedSSIM 0.886348
baseline direct collapse failure mode: coherent-ish from above, but only reaches 96.54% without source welding
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#10 · b11 underside aggressive 99
Aggressive underside simplification + collapse — 99% target
1,627 tris87,091 verts94.96% reducedSSIM 0.885718
informative failure: explicit underside split preserved too much mesh and missed the 99% target badly
| Rank | Result | Triangles | Vertices | Top SSIM | FBX |
|---|---|---|---|---|---|
| 1 | t02_cgal_99 CGAL edge collapse — 99% target | 321 | 155 | 0.940729 | Download |
| 2 | t03_meshlib_99 MeshLib decimation — 99% target | 323 | 813 | 0.932797 | Download |
| 3 | b05_micro_weld_99 Exact-position micro-weld + collapse — 99% target | 323 | 156 | 0.931060 | Download |
| 4 | b06_micro_weld_planar8_99 Micro-weld + planar 8° + collapse — 99% target | 321 | 157 | 0.921855 | Download |
| 5 | b09_voxel_99 Voxel topology reset tuned near 99% target | 324 | 166 | 0.916177 | Download |
| 6 | b12_micro_weld_overshoot_995 Micro-weld + 99.5% reduction stress test | 161 | 75 | 0.914267 | Download |
| 7 | b04_planar15_99 Planar 15° prepass + collapse — 99% target | 1,113 | 57,333 | 0.911492 | Download |
| 8 | b10_top_face_bias_99 Top-facing surface bias + collapse — 99% target | 625 | 36,075 | 0.889497 | Download |
| 9 | b01_uniform_99 Uniform collapse — 99% target | 1,118 | 57,337 | 0.886348 | Download |
| 10 | b11_underside_aggressive_99 Aggressive underside simplification + collapse — 99% target | 1,627 | 87,091 | 0.885718 | Download |