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Bresenhams Line algorithm, 0.5 widths

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Hi, I can draw a line of width 1,2,3,4,5 ... etc, but was wondering how to draw a line of 0.5, 1.5 etc. Any ideas? cheers

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Read here:

http://freespace.virgin.net/hugo.elias/graphics/x_wuline.htm
http://www.gamedev.net/reference/articles/article382.asp

Basically you calculate the area that the line covers for a pixel, then give that pixel a grey value depending on that area fraction. That also works for lines less than one pixel wide.

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Ok, im a bit confused with what is the most accurate "prettiest" anti aliasing technique for a line, is it gupta sproull?

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