- cubemap relied on pointer to MFace, which is only available for Mesh
when directly converted to renderfaces.
It then checked the 'puno' flag where also bits were set to indicate
the optimal projection for a face (XY, XZ or YZ).
- I found out the renderface also has a puno flag, so the mface pointer
in a renderface is redundant. Is removed now
- added code in texture cubemap call, which checks on a projection flag
in 'puno'. If not set, it uses the orco's to calculate one.
- this means, that cubemap now also works for other objects than meshes,
provided they have an orco block while render.
- if no orco block available, it uses the 'global' projection to find which
of the cube sides map.
I couldnt find other errors with subsurf & orco though...
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