CreateImage артефакты

    let x = 0
    let t = new hTimer()
    t.addAction(()=>{
        let u = CreateUbersplat(x, 0, 'Adrt', 255, 255, 255, 255, false, false)
        SetUbersplatRenderAlways(u, true)
        x += 128
    })
    t.start(1, true)

from PIL import Image
from wand import image
import os

IN_W = 256
IN_H = 256
OUT_W = 128
OUT_H = 128

dir = './HD/Ruins/dirt/'
atlas = Image.open(dir + 'ruins_dirt_diffuse.dds')
print(dir)

max_x = int(atlas.size[0] / IN_W)
max_y = int(atlas.size[1] / IN_H)

for x in range(max_x):
    for y in range(max_y):
        croped = atlas.crop((x * IN_W, y * IN_H, (x + 1) * IN_W, (y + 1) * IN_H))
        croped_back = croped.resize((OUT_W - 2, OUT_H - 2))
        croped_back.putalpha(1)

        im = Image.new('RGBA', (OUT_W, OUT_H), 0)
        im.paste(croped_back, (1, 1))
        im.paste(croped.resize((int(OUT_W / 2), int(OUT_H / 2))), (int(OUT_W / 4), int(OUT_H / 4)))
        path = dir + '%02dx%02d.tga' % (x, y)
        im.save(path)

        dds = image.Image(filename=path)
        dds.compression = 'dxt5'
        dds.save(filename=dir + '%02dx%02d.dds' % (x, y))

        os.remove(path)