krita_checkerboard.seexpr

# Based on https://krita-artists.org/t/checkerbord-seexpr-pattern/13900

$color1 = [0,0,0];
$color2 = [1,1,1];
$scale_horizontal = 3	; # 1,500
$scale_vertical = 3; # 1,500
$offset_horizontal = 5; # 1,500
$offset_vertical = 5; # 1,500
$rotation = 0; # 0,360

$rotated = rotate([$u, $v, 0], [0, 0, 1], rad($rotation));
$u = $rotated[0];
$v = $rotated[1];

$x = floor(($u * ($scale_horizontal)) % 2);
$y = floor(($v * ($scale_vertical)) % 2);

if (($x || $y) && !($x && $y)) {
	$color = $color1;
}
else {
	$color = $color2;
}

$color