Efficient way of drawing outlines around sprites

Posted by Greg on Game Development See other posts from Game Development or by Greg
Published on 2010-09-14T16:47:14Z Indexed on 2011/02/02 23:34 UTC
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2d

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XNA

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sprites

Hi,

I'm using XNA to program a game, and have been experimenting with various ways to achieve a 'selected' effect on my sprites. The trouble I am having is that each clickable that is drawn in the spritebatch is drawn using more than a single sprite (each object can be made up of up to 6 sprites).

I'd appreciate it if someone could advise me on how I could achieve adding an outline to my sprites of X pixels (so the outline width can be various numbers of whole pixels).

Thanks in advance,

Greg.

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