set missing Maya attribute from node

[pandaGaume]

Maya exporter : Set the babylonBackfaceCulling & babylonUnlit material bool attribute according the node value
this fix #913

[AlexIbanez16]

I have an update concerning the babylonBackfaceCulling problem (resetting the value during the export). It's still there using the latest release of the exporter 20210107.7.

[pandaGaume]

Did this happend with a particular material ? I might missed something during my repro and test.

[AlexIbanez16]

I only tried with the Stingray PBS. I'll try tomorrow with other materials (lambert, aiStandardSurface, blinn and phong) and keep you updated.

[AlexIbanez16]

Okay, so it seems that the problem persists with the Stingray PBS and the aiStandardSurface materials. Maybe it's because they have babylonStingrayPBSMaterialNode and babylonAiStandardSurfaceMaterialNode instead of a babylonStandardMaterialNode.
The lambert, phong, and blinn materials work fine.

[pandaGaume]

Ok this is more clear, I migh had corrected only for the standard material and forgot a check somewhere. I will investigate this tomorrow morning my time (which is CET).

[AlexIbanez16]

Hi! I'm writing to know if you found what was causing this problem and, if not, can I be of any help?

[pandaGaume]

@AlexIbanez16 Sorry for the delay, i was comitted on other works. I have to review what i published because i certainly forgot to correct some other type of material. I will try to do my best to publish a correction asap.

[pandaGaume]

@AlexIbanez16 publish a fix. Might be better now. Wait for the PR to be merge.