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changes.mady.by.user Gergana Lilkova

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  • .vrmesh files are generally faster to work with.

  • ply2vrmesh can preprocess and subdivide geometry, hair and particles from Alembic files into smaller chunks which are more convenient for dynamic loading during rendering. This allows the efficient rendering of many millions of triangles, hair strands and particles.


UV Channel Priority

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Since alembic UV Channel names are customizable (depending on the exporting host platform), VRayProxy offers a way to prioritize the channels by indices. The Reorder channels by indices option uses the following rules to order the alembic UV channels:

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  • Top priority: uv – The native alembic UV channel is always on top
  • High priority: Max Map Channel-prefixed channels are prioritized over all other numbered channels, because the prefix is known to represent UV/UVW channels, when exported from 3ds Max
  • Medium priority: uv-prefixed channels are prioritized over other numbered channels, but have lesser priority than Max Map Channel-prefixed
  • Low priority:  any numbered channel with two components, like (u,v) is prioritized over all three-component numbered or non-numbered channels (except those matching the higher priority rules)
  • Lowest priority: any numbered channel with three components, like (u,v,w) gets prioritized over all non-numbered channels
  • All lower priority conflicting numbered channels are placed at the empty channel slots or after all the highly prioritized channels. Their order corresponds to their numbering

  • Non-numbered channels fall out of prioritization and are always placed at the remaining empty channel slots or after all the prioritized channels. They are sorted the same way they are stored in the alembic file



Notes

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  • Alembic instances work with the Random by InstanceID option of the VRayMultiSubTex texture.

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