bleedingedge-ac708e8
non-square VAE tiling (#3) * refactor tile number calculation * support non-square tiles * add env var to change tile overlap * add safeguards and better error messages for SD_TILE_OVERLAP * add safeguards and include overlapping factor for SD_TILE_SIZE * avoid rounding issues when specifying SD_TILE_SIZE as a factor * lower SD_TILE_OVERLAP limit