Maya Ogre Exporter - 0 vertex Morph problem

[dpakatheman]

The Maya exporter can export corrupt mesh files with animations that reference invalid morph indices. When exporting morph targets in blendshape.cpp (line 345 & 282 ), the poses are only exported if they contain at least 1 vertex that moved. But when morph animations are exported, the are exported referencing the (potentially invalidated) index in the Maya array (line 431).

We've fixed this internally by no longer pruning the blendshapes, but that might not work for everyone. Not sure of the best place for this, so sorry if it should be posted elsewhere.