Function loopirev

source/src/world.cpp:943–943

    // generate special mipmap without considering light or utex/wtex -> we'll try to reach this by optimization...
    sqr *worldbackup = (sqr *) memcpy(new sqr[ssize*ssize], world, ssize*ssize*sizeof(sqr));
    r = world; loopirev(ssize * ssize) { r->wtex = r->utex = r->r = r->g = r->b = 0; r++; }
    remip(b);
    if(manual) countperfectmips(SMALLEST_FACTOR, 0, 0, 0, stb);
    memcpy(world, worldbackup, ssize*ssize*sizeof(sqr));