It is somewhat faster, apparently not quite 2*. [[The issue with edges is much more noticeable (refer to original notes).]] Update: fixed. Each of the dog's ears is visible only on one side. I wanted to do backface culling a few months ago, but I didn't know how to check if a triangle is CCW or not. Well, now I learned how to do it in a computational geometry component at uni (but it just does it in 2D after transforming because otherwise I would need to think).
