LEGO tile (2x2 variant of the brick)
obj_studs_tile · Procedural (exact GT, offline) ·
generated locally with exact ground truth
Ground-truth mesh
Drag to orbit, scroll to zoom. Rendered from gt/mesh.obj
(524 faces).
Ground-truth views
lighting:
channel:
Why this sample is in the benchmark
Deliberately the same builder as obj_lego_brick with different params. Demonstrates that new samples can be cheap variations (resolution of primitive counts) rather than new code -- useful for ablations on feature density.
Ground truth
- GT type
- exact
- licence
- Generated locally -- no third-party licence
- source
- Procedural (exact GT, offline)
- builder
- lego_brick {'nx': 2, 'ny': 2}
- faces
- 524
- vertices
- 272
- watertight
- True
- surface area
- 2.3161 m²
- extents (m)
- [0.8, 0.33, 0.8]
- GT points
- 20000 surface samples
- views
- 12 × 128px (orbit, fov 45°)
- lighting
- studio, tri_env
Acquisition plan
kind local, automatic True,
estimated size 2.16 MiB
- Build geometry 'lego_brick' with {'nx': 2, 'ny': 2}
- Render 12 views (orbit @ 128px, fov 45 deg)
- Shade under lighting: studio, tri_env
- Write GT mesh, surface points, depth, normals, poses
Fully offline. Ground truth is exact (no SfM, no scan noise).
Comparisons
| method | F-score | Chamfer-L1 | scale | |
|---|---|---|---|---|
mock-3dgs |
0.5233 | 0.00515 | 0.9255 | open |