Hello,

I am one of Nouveau developpers, working on nv10 part of the mesa driver.
This class of hardware needs POS vertex attribute to be emitted last. However,
tnl/t_vertex.c prevent that, and requires POS to be emitted first:

tnl/t_vertex.c:297: _tnl_install_attrs: Assertion `nr == 0 || map[0].attrib == 
VERT_ATTRIB_POS' failed

Just commenting/disabling this assertion makes it working for me, so I wonder in
which cases POS must be emitted first, and why.

Thanks.


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