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Sergey Sharybin 42cb1e3a2c OpenSubdiv: Optimize faces storage in mesh topology ...

Avoid per-face pointer and allocation: store everything as continuous
arrays.

Memory footprint for 1.5M faces:

- Theoretical worst case (all vertices and edges have crease) memory
  goes down from 114 MiB to 96 MiB (15% improvement).

  This case is not currently achievable since Blender does not expose
  vertex crease yet.

- Current real life worst case (all edges have crease) memory goes
  down from 108 MiB to 90 MiB (17% improvement).

- Best case (no creases at all) memory goes down from 96 MiB to 78 MiB
  (19% improvement).

2020-05-27 12:07:16 +02:00

3.0 KiB

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