09-13-2022, 05:06 PM
When manually drawing tiles I mirror opposite sides of the image to each side of the image but I don't do it evenly and then I add a couple extra non-reflected but contiguous details across the seam to break up the butterfly look that can happen when an image is mirrored. The trick here is in selecting what is mirrored when not doing it manually. A variable area of reflection per scan line will work but will end up with a jagged edge unless the image is very low contrast overall.