Comment on It’s 25 years since Sega of America made its biggest mistakeparentComments−a_e_k6yIn higher-end rendering, a quad that can be non-planar is called a bilinear patch. Yes, it can curve (cross sections tend to give parabolas), and while you won't get infinitely sharp creases you will get saddle-shapes.See, e.g.: http://www.sci.utah.edu/~kpotter/publications/ramsey-2004-RB...−chrisseaton6yWow seems like that’d be an order of magnitude or more slower to render bilinear surfaces rather than triangles. I wonder why they did that.
Comments
In higher-end rendering, a quad that can be non-planar is called a bilinear patch. Yes, it can curve (cross sections tend to give parabolas), and while you won't get infinitely sharp creases you will get saddle-shapes.
See, e.g.: http://www.sci.utah.edu/~kpotter/publications/ramsey-2004-RB...
Wow seems like that’d be an order of magnitude or more slower to render bilinear surfaces rather than triangles. I wonder why they did that.