Is there a good integer only line rasterization algorithm?

I've been working on building a simple 3d graphic engine and I'm trying to find a good integer based line rasterization algorithm. ( I'm not trying 开发者_JAVA技巧to re-invent the wheel, I'm trying to get a deeper understanding of wheels).

Are there any line rasterizing algorithms that don't rely on any floating point math?

Thanks.

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Bresenham's line algorithm is integer only.