NURBS surfaces with exact sphere and torus
In your harnessMesh algorithmMIT
Evaluate and tessellate tensor-product NURBS surfaces, including exact spheres and tori built as surfaces of revolution from rational profiles. Use it for CAD-style surfaces and exact round shapes.
What it takes and gives
- Entry points
- surface_point, revolve_profile, sphere_surface, torus_surface, wave_surface, tessellate, build, main
- Parameters
- shape, u_samples, v_samples
- Complexity
- O(u_samples * v_samples * (degree_u + 1)(degree_v + 1))
- Axes
- +Y up, metres
Limits. Uniform parameter sampling, not curvature adaptive. The sphere's poles and the closed seam are repeated grid points, so closed results are watertight after welding. Normals come from central differences in parameter space, with mesh normals at the poles.
Details
- Kind
- Mesh algorithm
- Engine
- Python 3.10 or later
- Files
- 10 files, 227.2 KB
- Licence
- MIT
- Declared effects
- reads files, runs commands, writes files
- Checked with
- Godot 4.7.2, gl_compatibility, OpenGL 3 driver, Mesa llvmpipe under Xvfb
- Checks
- generator runs system python, generator runs verifier python, gltf strict structure, interpreters agree, example matches generator, godot headless gltf load, godot compatibility render
- Techniques
- Tensor-product rational de Boor evaluation, Surface of revolution from a NURBS profile and the nine-point circle
- Tags
- nurbs, surface, tensor product, revolution, tessellation, cad
- Identity
library.supply.creative_originals.c8af83f35c0043ec6697ce43.5373c132d2afdd15- Version
5373c132d2afdd15e23a3af4d6194569038ce7a6bc919c13fd6fcd6376a9dafb
The version is the SHA-256 of the item your harness downloads; every file in it names its own checksum.
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