Updates the o3dConverter to turn on filtering by default...

Updates the o3dConverter to turn on filtering by default
because the collada exporters often set it to NONE or POINT.

Also make it change any collada standard Material 
that is used by a Primitive with no normals to use
"constant" shading.  This should make sketchup stuff
work.



Committed: http://src.chromium.org/viewvc/chrome?view=rev&revision=19545

[apatrick, 2009-06-26 20:04:29]

LGTM

http://codereview.chromium.org/147192/diff/1/2
File converter/cross/converter.cc (right):

http://codereview.chromium.org/147192/diff/1/2#newcode140
Line 140: sampler->set_mag_filter(Sampler::ANISOTROPIC);
Sampler::LINEAR?

http://codereview.chromium.org/147192/diff/1/2#newcode171
Line 171: // 4) DiffuseSamer -> EmissiveSampler
DiffuseSamer->DiffuseSampler

http://codereview.chromium.org/147192/diff/1/3
File converter/cross/converter.h (right):

http://codereview.chromium.org/147192/diff/1/3#newcode78
Line 78: // Tells the covnerter not to change materials to constant if they are
used
covnerter -> converter