[ QUOTE ] Full version of my answer here, with extra details http://www.rsart.co.uk/2006/08/27/green-tangent-space-normal-maps-2/ [/ QUOTE ] "So, we move the red data into the alpha channel and it gets a whole 16bits all to itself, leaving the green with 6 bits and blue with 5 bits." I think that 16 should be a 6. Yes I am…