Spent far too long today trying to fill an 11-sided hole using only corner-to-corner quadrilaterals (id Tech 4 patch geometry, don't ask) and got that familiar uneasy feeling of "there is a mathematical proof somewhere out there that could've told you this was futile".
The problem with making shapes all day is that you start to pride yourself on your ability to make any shape, forgetting that there are in fact Forbidden Shapes that cannot be.






