What is the unit of measurement of the Gap H/V parameter? My model units are 1 inch. When Gap H/V is set to a value of 1, I get various measurements for the gap in the model (depending on the size of the mapping widget or the number of tiles in the asset editor). I am having much trouble trying to figure out what the mathematical rationale is. I've tried setting every value to 1 unit of measure (1 inch in my case) and the gap seems to result in a random value. Is there a rationale that you can share?