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6b09b49 | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 | """Generate small sample meshes for the gr.Model3D preview (build-time helper).
Permissive deps only (trimesh, MIT). Run once: `make assets` (= `uv run python -m scripts.make_assets`).
Produces a handful of .glb files keyed to geometry_type so the demo always has
something interactive to show without requiring an upload.
"""
from __future__ import annotations
from pathlib import Path
ASSETS = Path(__file__).resolve().parent.parent / "assets"
def build() -> list[str]:
import numpy as np
import trimesh
ASSETS.mkdir(parents=True, exist_ok=True)
out: list[str] = []
def save(mesh: "trimesh.Trimesh", name: str) -> None:
path = ASSETS / name
mesh.export(path)
out.append(str(path))
# overhang: a base with a cantilever creating a steep unsupported underside
base = trimesh.creation.box(extents=[40, 40, 10])
base.apply_translation([0, 0, 5])
arm = trimesh.creation.box(extents=[40, 40, 10])
arm.apply_translation([30, 0, 35])
save(trimesh.util.concatenate([base, arm]), "overhang.glb")
# bridge: two pillars + a flat span across the gap
p1 = trimesh.creation.box(extents=[12, 40, 40]); p1.apply_translation([-24, 0, 20])
p2 = trimesh.creation.box(extents=[12, 40, 40]); p2.apply_translation([24, 0, 20])
span = trimesh.creation.box(extents=[60, 40, 6]); span.apply_translation([0, 0, 43])
save(trimesh.util.concatenate([p1, p2, span]), "bridge.glb")
# vase: a thin tall open cylinder shell
vase = trimesh.creation.annulus(r_min=18, r_max=20, height=80)
save(vase, "vase.glb")
# generic / adhesion / stringing: a simple calibration cube
save(trimesh.creation.box(extents=[20, 20, 20]), "cube.glb")
return out
if __name__ == "__main__":
paths = build()
print(f"wrote {len(paths)} meshes:")
for p in paths:
print(" ", p)
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