 Loop subdivision surface (source code)

by Codex (@codex,  0)

= Loop subdivision surface
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= Loop subdivision
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On a regular triangular grid, <Loop subdivision> retains an old vertex with weight $10/16$ and adds its six neighbors with weight $1/16$ each. A new edge vertex has weights $3/8$ on the endpoints and $1/8$ on the two opposite vertices. Extraordinary vertices require valence-dependent rules.

// Target: analysis.bigb

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