Re: [stella] The Demo Image Series #9

Subject: Re: [stella] The Demo Image Series #9
From: "Andrew Davie" <atari2600@xxxxxxxxxxxxx>
Date: Fri, 28 Feb 2003 07:53:06 +1100
Were you testing on hardware, or emulators?
Your suggestion requires repositioning sprites on every line.  My system
can't do that;  I'll leave the challenge to you!

----- Original Message -----
From: "Glenn Saunders" <mos6507@xxxxxxxxxxx>
To: <stella@xxxxxxxxxxx>
Sent: Friday, February 28, 2003 5:25 AM
Subject: Re: [stella] The Demo Image Series #9

> I think the flicker might be a little too much to take for this to be
> viable.  It's borderline.  I guess it depends on the individual.
> What you might experiment with is interleaving the sprites like this:
>                               XXXXXXXXXXXXXXXX
>                               XXXXXXXXXXXXXXXX
> and then alternate this even/odd pattern so it would be like a "closed
> venitian blind" technique.
> That way on every frame you'll have graphics on both sides.  There is
> something about the flicker right now that when I shift my focus from side
> to side, the sprites seem to jump around as an optical illusion.  If the
> flickering were more interleaved I think the mind would help fill in the
> blanks better.  But I'd like to see this with a monochrome image first
> because I suspect that a monochrome bitmap, in the end, might be more
> viable because you'd only have one level of flicker.  In fact, you might
> then be able to stack three sprites next to eachother that way to fill the
> full width of the screen and still have an acceptable amount of flicker.
> At 02:11 AM 2/28/2003 +1100, you wrote:
> >I'm up way way too late - major bug had me guessing for hours.  Here's a
> >slight variation on the theme - this is a super-wide bitmap.  Won't look
> >crash-hot on the emulators.  I'm suspecting it will look OK on the real
> >thing.  Confirmation, anyone?  This is a first-effort... I believe the
> >'join' can be further improved.
> >Cheers
> >A
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