6502's cornerFree Span Buffer [4]
2002-12-28
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A concrete example

To show the algorithm I wrote a small program that displays several bitmaps bouncing on the screen using a painter's algorithm, a z-buffer algorithm and a free span buffer algorithm. I didn't include any 3D code to avoid adding parts unrelated to this note.

Free Span Buffer demonstration
The program has been written for DOS in Watcom C. It should be simple to modify the sources for other environments or compilers.