   Clean up white pixels
  I'm creating art for a 2d pixel art game. I have 3D models which are rendered to anti-alias images. I then convert them to 8-bit. This creates some white pixels around the edges. Is there a cleaning tool, which will auto clean the images?I stumbled across this. Is it any good? Is there a free alternative?http://www.psoft.co.jp/en/product/anti-aliasing/ps.html   
  Render your images with a transparent background instead of a white one. That should fix your problem.   ;  Are you rendering with an alpha channel?Can you use that alpha channel in the conversion process?Why are you using 8-bit images in the first place? (Especially with pre-rendering...)   ;  There's always the option to not render the 3d models with anti-aliasing. Then there won't be any softening around the edges and since you're converting them to 8-bit anyway, it's not like it will make it look any worse.Just turn off anti-aliasing on your render passes.   