feat: Add triangular patches to @typegpu/geometry

[reczkok]

Adds triangular patch surfaces to meshes, with subdivision separate from surface sampling

• icosphere, capsule and rounded box primitives
• tessellate into indexed geometry or sample patches directly in vertex shaders
• shared index buffer across subdivision levels, so detail can change without rebuilding buffers
• spherical interpolation helpers + an interactive patch tessellation example

Tessellation and spherical interpolation ideas yoinked from @deluksic’s de/geometry-spheres branch, shared in the original PR comment

Stacks on #2997

[github-actions]

pkg.pr.new

packages
Ready to be installed by your favorite package manager ⬇️

https://pkg.pr.new/software-mansion/TypeGPU/typegpu@02709ec5acd71c833282fad3095de0ea153c4009

https://pkg.pr.new/software-mansion/TypeGPU/@typegpu/cli@02709ec5acd71c833282fad3095de0ea153c4009

https://pkg.pr.new/software-mansion/TypeGPU/@typegpu/gl@02709ec5acd71c833282fad3095de0ea153c4009

benchmark
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commit
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[github-actions]

Bundle size comparison (import * as ... in PR vs import * as ... in target):

🟢 Decreased	➖ Unchanged	🔴 Increased	❔ Unknown
0	325	0	0

No notable changes.

If you wish to run a comparison for other, slower bundlers, run the 'Tree-shake test' from the GitHub Actions menu.

[github-actions]

Resolution Time Benchmark

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  line [1.04, 2.08, 4.31, 6.78, 7.87, 13.09, 25.68, 27.65]

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  line [0.30, 0.50, 0.69, 0.84, 1.28, 1.21, 1.41, 1.57]
  line [0.30, 0.54, 0.71, 0.87, 1.23, 1.25, 1.51, 1.77]

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  line [0.89, 2.07, 3.51, 7.83, 13.14, 26.38, 59.27, 119.08]

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