Path: chuka.playstation.co.uk!news
From: "Ben James" <hungryghost@clara.co.uk>
Newsgroups: scee.yaroze.freetalk.english
Subject: Re: weird pixel vanishing in sprite
Date: Fri, 20 Jul 2001 18:49:41 +0100
Organization: PlayStation Net Yaroze (SCEE)
Lines: 29
Message-ID: <9j9r8q$sk28@www.netyaroze-europe.com>
References: <01c1107c$c9da4a80$4f1be4d5@pal-s-omnibook>
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Hmm, sounds nasty. The only thing I can think of is your primitive buffers
are getting corrupted. That could be tricky to debug so let's hope not :)

"pal" <pal_news@hotmail.com> wrote in message
news:01c1107c$c9da4a80$4f1be4d5@pal-s-omnibook...
> I was happily coding when I noticed that a few pixels from some of my
> sprites were just missing. After a lot of checking, I still can't find out
> why. It happens always with the same bitmap data, and the same pixels.
> Whatever the coordinates of the sprite on the screen, and of the bitmap in
> vram, the missing pixels remain the same in every instance of the sprite
> drawn.
>
> The most intriguing fact is that if I scale up the sprite (say, 2*4096),
> all the pixels are here! That means that the bitmap and clut in vram are
> not damaged.
>
> I ran my proggy on two different TV sets just to check, no difference.
>
> I changed the background color (from black to dark and light grey) to
> ensure it is not an illusion...
>
> Has anyone ever met this? This is pretty weird... Any comment welcome!
> (btw, if my description is unclear, please tell me so I can try and fix it
> ;) )
>
> pal
>