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Hi, please have a look at:

https://vimeo.com/44247466

and see the strange behaviour of the normalmapping.
Direction of normal map is flipping when rendering with maxwellRender in Maya 2012 and activated motionblur! Not all polyshell of the same model are affected! The geo is exported from CAD as .OBJ.
During the movement along X axis the normalmap effect is inverted. With the reach of the keyframe were movement stops the normalmap is rendered correctly.
Renderd in Maxwell v2.6.10; Mayaplugin: v2.6.27

(Tested v2.7.0 version today, but same bug appears!)

Any ideas?

Cheers
Sven

Could you please make a very simple scene, say two planes where one is moving, that shows the same behavior? The simpler the scene, the easier it is to debug. Thanks!

sent you an PM.

Best
S.