I finally made a decent voxel filler! (It's kinda fast and has almost zero artifacts aside from z-clipping issues) This has been 3 1/2 years in the making and took 5 days to solve and code. Play around with the settings, or stop the project and press Space to test how many voxels you can render per second. I tested this compared to my previous (buggy and overcomplicated) attempt at a voxel filler, and this one is both far more robust and around 20% faster! Compared to the traditional method of drawing cubes using tri-fillers, I'd estimate this method to be slightly faster. Maybe even up to 30-40% faster. Idk though, I haven't tested. Now I gotta make a voxel game :P (Probably joking)