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Old 09 August 2018, 18:32   #5
deimos
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Join Date: Jul 2018
Location: comp.sys.amiga
Posts: 762
Quote:
Originally Posted by AChristian View Post
are you drawing the polygons using the amiga's ability to draw horizontal
I have tested with the Blitter's area fill and settled on the non-Blitter polygon fill that I'm currently using. The Blitter did make things slightly faster (2.2fps vs 1.8fps), but adds complexity, and you need to clip, which you don't with a scanline fill.

My numbers (1/3 1/3 1/3) tell me that even if I could make drawing to the screen free, I'd still only get 5fps. That's why I think the Starglider guys might have had some tricks.

And besides, Starglider 2 was available for the ST, so the Blitter can't be the secret.
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