Speedtree Alembic files to maya 2015 broken geo

Jem Grimshaw

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Mar 10, 2015, 6:36:17 AM3/10/15

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Morning !

Wondering if there is anyone out there that has experience importing alembic files from speedtree to maya successfully ?

We are having trouble with our arnold renders and maya geo after exporting trees growing as alembic files !

we get this maya warning

// Warning: UVs aren't per-vertex or per-polygon per-vertex, skipping //

// Warning: normal vector scope does not match size of data, skipping normals //

and then we get stuck geometry and flickering textures after rendering !!

I have tried now exporting from speedtree as quads and triangles with relative and absolute uv's, I have tried importing into nuke and exporting, I have tried exporting from maya and re-importing.

I have tried using the Exocortex plugin instead of the maya alembic importer.

Still I am not getting results !!

Speedtree say that there alembic exports are fine and this is a maya problem, Excortex say that their plugin is stable and never crashes (it has not not crashed yet)

If anyone has any experience with alembic file and speedtree I would really appreciate your help...

Thanks in advance

Jem

Scott Bell

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Mar 10, 2015, 2:04:18 PM3/10/15

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I've just exported the Broadlead_High tree with wind from speedtree modeler cinema 7.0.7 into maya 2105 ext 1 sp5 with wind animation fine. no problems here.

Jem Grimshaw

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Mar 10, 2015, 3:48:57 PM3/10/15

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All sorted now... looks like it was all about staying fresh....

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Ryan O'Phelan

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Mar 12, 2015, 9:03:36 AM3/12/15

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What do mean "fresh"? What was the solution?

Jem Grimshaw

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Mar 12, 2015, 11:16:03 AM3/12/15

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I was adviced by speedtree to create a fresh scene and import the alembic fresh before setting off growth renders... this seems to have dealt with the hanging geo issues we were having... :)

"Glad it's working! That stuck geo issues is a thorn in our side for sure. It's been in every Maya version that supports Alembic!"
--
- Michael Sechrest (speedtree lead developer)

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