it doesnt matter if you use spriter files directly cause in your game engine it will be fine , smooth sampling is enabled in modes ?
Guys were working on diffferent sampling algorithms about year ago but nothing came out of it, i too would like to see several options like bicubic or lanczos method so jaggies on straight lines wont be so visible when rotating.
I guess its not a priority because spriter animations can be played back in realtime in game engines so they dont care that much about exporting to png's and interpolation methods
http://brashmonkey.com/forum/index.php?/topic/3394-great-algorithm-for-rotating-pixel-art-sprites/#comment-10343
I exported from Spriter at 400 percent, then reduced by 25 percent (in photoshop..krita or gimp should do as well ) and got some very smooth results, as you see here.. If you have to go the sprite-sheet rout, I suggest you use this method.
thewrongvine reacted to bwwd in Jagged Lines on Rotated Images