Comparing some 3D projection methods for speed. About 100x faster on Turbowarp, too fast for precision's sake. 1. @Vadik1: Somewhat fast but uses a lot of custom blocks, increasing computation time. About 7.5μs per point. However, this is by far the fastest method for use on Turbowarp. 2. @iaobardar: Quite fast, but far too much usage of trig functions, making it slower than #1. About 9μs per point. 3. @iaobardar, @ChuckSploder: Very fast, uses precalculated trig functions for up to 30% more speed than #1. About 5.5μs per point. This is the fastest method for use on Scratch. Note: I edited @iaobardar's method a tiny bit because the accuracy was off; certain variables were being changed before they could be used in the proper context.