This kind of 1-2 pixel shift will always happen with an in-place blurring algorithm that uses the same buffer for its input as output. It's a side-effect of the blur shader/algorithm working top-to-bottom and left-to-right. It's normal and probably not worth fixing because that would require double the memory and more CPU time.
This kind of 1-2 pixel shift will always happen with an in-place blurring algorithm that uses the same buffer for its input as output. It's a side-effect of the blur shader/algorithm working top-to-bottom and left-to-right. It's normal and probably not worth fixing because that would require double the memory and more CPU time.