I had a play with Marcelo's latest version and still puzzling over the smoothing algorithm.
Once I confirm that the triangle area ratio is fine and that better spherical shading is not possible without a special case (as in you can not use linear interpolation without suffering seams) I'll post some of the optimizations I made while testing.
Once I confirm that the triangle area ratio is fine and that better spherical shading is not possible without a special case (as in you can not use linear interpolation without suffering seams) I'll post some of the optimizations I made while testing.