Path: chuka.playstation.co.uk!scea!greg_labrec@interactive.sony.com
From: "Nelson Santos" <nsantos@total.net>
Newsgroups: scee.yaroze.programming.2d_graphics
Subject: Re: Jerky graphics
Date: 19 Jun 1997 14:54:46 GMT
Organization: SCEA Net Yaroze News
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> At first glance, I don't see any problem with the code you posted
> here. I think I'd have a look at the function MoveHeroBullets() and
> see what's happening there.
> 
> Mario
> 

My MoveHeroBullets seems to work ok when I fire more than one bullet.  I
experimented with a few things, and I think I fixed it, but I still don't
know why.  Referring back to the code (here is a segment:)

...
        if(NumHeroBullets > 0)
            {
               for(i=0 ; i < NumHeroBullets ; i += 1)
                  GsSortFastSprite(&HeroBullets[i], &OrdTab[Buffer], 0);
            }
            DrawSync(0);
            VSync(0);
            GsSwapDispBuff();
            GsSortClear(0, 0, 0, &OrdTab[Buffer]);
            GsDrawOt(&OrdTab[Buffer]);

            if (GameOver == TRUE) break;
...

All I did was move the "DrawSync(0);" to right after the
"GsDrawOt(&OrdTab[Buffer]);"

Now this is against what the manuals say, but it works anyhow.  No more
choppiness.  Do you know why?

Nelson.