Maya Tangent Support for Designer and Painter

beefaroni

Hi all,

I was wondering if it would be possible to have support for Maya tangents inside of Designer + Painter. I notice that there is a mikkt and unity.dll right now, but not Maya.

Thank you!

Froyok

We could support it, but it's hard to find any documentation about the maya tangent space.

oblomov

Autodesk published code for computing tangent spaces the Maya way (thanks Polycount wikis) :
http://download.autodesk.com/us/maya/2011help/index.html?url=./files/Appendix_A_Tangent_and_binormal_vectors.htm,topicNumber=d0e227193

Also, FWIW, here's the (different) 3DS Max way:
 http://area.autodesk.com/blogs/the-3ds-max-blog/how_the_3ds_max_scanline_renderer_computes_tangent_and_binormal_vectors_for_normal_mapping

The API for the tangent space plugins in Substance Designer is public (and quite simple, there are just a couple functions to implement). A developer or maybe a C/C++ capable tech artist could fairly quickly translate the code above and make a plugin for those tangent spaces.

walter

In Maya, the default vertex normal method is "Angle And Area Weighted", and not supported in Substance.
In the Maya preferences > Settings > Modeling, switch vertex normal method to "Unweighted",
Or in the object Shape > Mesh Controls, switch vertex normal method to "Unweighted".
Now the normals are concistent between Maya and Substance.