a few things

[joevenzon]

4. does the gl3 renderer support specular and normal maps yet?

Yes! I had to rewrite the tangent space calculation, I'm not sure why the old one wasn't working. I believe the new algorithm is correct (and should be faster, too), but definitely check it out. I enabled normal and specular maps on the rouen objects that seemed to have them (the new objects.txt didn't have the miscmap1 and miscmap2 textures set).