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I'm doing an old stile 3d game in asm for atari falcon 68030 (just line and point).
I need the fastest way to clip a line.
(not the vector way p(x,y)=a(x,y)+t*u(x,y) because I will need to do a square root)
when I draw (and first clip) I allready know:
w(line wight),h(line hight)
clipping zone: x(-160,+160),y(-120,120)
in a -2^15,2^15-1 (signed 16 bit) space
thx (sorry, learning english...)