Anyone have a clever (automated) way of adding padding to a selection? Say extending the border; 4 pixels with the outermost pixel, and scaling background is not an option because of multiple islands on layer.
do your layers have antialiased/half transparent pixels? becase they will definetly fuck it up. you could select your uv borders and delete those pixels to make the result use 1 bit transparency
but wouldn't dilation also fill it entirely? just create an action with toooons of dilation and done, i guess in any case 256 pixels should fill even 4k maps ^^