Line-drawing routine

[Professor]

This thread was rather nostalgic for me! I took a look at some old line-drawing code that I wrote circa 1993-94 for an animation of my IBM PS/2 computer, which ran on the MCGA graphics card of that computer. That code didn't draw anti-aliased lines, but it was some pretty tight, optimized code in less than 100 lines of 8086 assembler.

[NoCforMe]

You could post that code in our 16-bit forum if you like.

[daydreamer]

That's fine for a 1 pixel wide line, but what about, say, a 10 pixel wide line?

Good point, Biterider. I've never really experimented with drawing thick lines. I guess my point was just demonstrating simple anti-aliasing. A wider line would presumably compute two lines, with the "fade-in" anti-aliasing only performed on the "top" line and the "fade-out" anti-aliasing only performed on the "bottom" line.

But 10 pixel wide,isnt it definition of polygon instead ?

[NoCforMe]

But 10 pixel wide,isnt it definition of polygon instead ?

Theoretically, yes. Practically, no.