Anti Alias for changing background
Printed From: Pixel Joint
Category: The Lounge
Forum Name: Resources and Support
Forum Discription: Help your fellow pixel artists out with links to good tutorials, other forums, software, fonts, etc. Bugs and support issues should go here as well.
URL: https://pixeljoint.com/forum/forum_posts.asp?TID=15805
Printed Date: 11 September 2025 at 7:42pm
Topic: Anti Alias for changing background
Posted By: Joseki
Subject: Anti Alias for changing background
Date Posted: 30 January 2013 at 3:12am
Hello, what is the best method to obtain an effective AA on sprites moving on a changing background, for example in side-scrolling games? Is the use of semi-transparent colors the only option?
Thanks :)
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Replies:
Posted By: jalonso
Date Posted: 30 January 2013 at 8:36am
Not possible in a true 100% pixel game. The solution for this called 'selout' and is a way to highlight the lineart and diffuse other areas. Most find selout the most complicated technique to get right but its doable. The color pokeman games for GB use this very effectively.
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Posted By: Joseki
Date Posted: 30 January 2013 at 8:52am
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Thanks for the hint, will study the subject.
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Posted By: AtskaHeart
Date Posted: 30 January 2013 at 8:54am
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Yeah, it would be sel-out. Though to be honest, results are a bit ugly aesthetically most of the times.
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Posted By: cure
Date Posted: 30 January 2013 at 10:38am
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Sel-out is generally considered bad form, unless the luminescence of your background is rigidly consistent it isn't going to work. Try omitting AA on the sprite's exterior, it shouldn't be necessary really. Otherwise use alpha-transparency.
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