RE: [stella] Super Fast Scrolling

Subject: RE: [stella] Super Fast Scrolling
From: Rob <kudla@xxxxxxxxx>
Date: Wed, 11 Apr 2001 09:00:05 -0400
At 11:49 PM 4/10/01 -0400, Tempest wrote:
>Yeah I realized that this was a stupid question the second I sent it (should
>have consulted the manual first).  What I really wanted to know is if the
>scrolling effect would look all jerky if you went too fast.  I've seen some

I think it actually appears smoother if you do it faster; the eye is fooled
better.  That's why I was encouraged enough with my early playfield
animation experiments to start that Ballblazer game I never finished.

>Choppy scrolling isn't a matter of speed then is it?  Is it how often you
>update the PF registers?

I think as long as you update them often enough that the eye only detects
the minimum possible 4-pixel jump (allowing you to scroll a screen
completely in about 2 seconds) you'll be fine.  Jumping two playfield
pixels (8 regular pixels, 1/20th of the screen) per frame would start to
get choppy but hopefully in a game that scrolled that fast, the player
wouldn't have time to notice ;)


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