The height of the (downscaled) texture.
The maximum x-coordinate with alpha > 0 plus 1.
The maximum y-coordinate with alpha > 0 plus 1.
The minimum x-coordinate with alpha > 0.
The minimum y-coordinate with alpha > 0.
The width of the (downscaled) texture.
The array containing the texture alpha values (0-255) with the dimensions (maxX-minX)×(maxY-minY).