English Amiga Board - View Single Post - fastest way to code an one pixel sinus scroller

Photon · 18 October 2021, 14:13

@Dan OCS/68000 can do a 270px high sine scroller in real time without filling. But I think Int42 is looking for a quick and easy way to write one, rather than how to write the fastest one.

ORing pixel columns from a scroll buffer is a bit simpler. You could fill the scroll buffer just to test your routine and see what height font it accommodates. 30px is possible this way.

18 October 2021, 14:13	#8
Photon Moderator Join Date: Nov 2004 Location: Eksjö / Sweden Posts: 5,627	@Dan OCS/68000 can do a 270px high sine scroller in real time without filling. But I think Int42 is looking for a quick and easy way to write one, rather than how to write the fastest one. ORing pixel columns from a scroll buffer is a bit simpler. You could fill the scroll buffer just to test your routine and see what height font it accommodates. 30px is possible this way.