Establish and make everything consistent in alembic for face winding order

[GoogleCodeExporter]

We've documented a winding order of clockwise, however the current set of 
plugins are counter clockwise for PolyMesh and SubD. We need to get everything 
in sync.

Original issue reported on code.google.com by cookingw...@gmail.com on 3 Jun 2011 at 7:55

[GoogleCodeExporter]

Everything is in sync.  The polygon winding order is clockwise.
Do not confuse the handedness of the coordinate system with the polygon winding 
order, they are two different things.

Original comment by miller.lucas on 3 Jun 2011 at 8:09

[GoogleCodeExporter]

Ooops, my bad. I should have looked at the code.
Are we also consistently a left handed coordinate system, and if so I can close 
this issue.

Original comment by ble...@gmail.com on 3 Jun 2011 at 8:18

[GoogleCodeExporter]

A comment from Steve:  "I've confirmed that we're sending right-handed data to 
both prman and arnold out of our in-house tools."

Right-handed coordinate system, clockwise polygon winding order.

Original comment by miller.lucas on 3 Jun 2011 at 8:47

[GoogleCodeExporter]

Thanks Steve. I should have checked the code and I just had the wrong ideas in 
my head. Thanks for checking and the explanation.

Original comment by ble...@gmail.com on 4 Jun 2011 at 1:26

• Changed state: Resolved