Path: chuka.playstation.co.uk!news
From: Nick Slaven <NickSlaven@compuserve.com>
Newsgroups: scee.yaroze.programming.2d_graphics
Subject: Re: banding tiles/sprites
Date: Thu, 04 Jun 1998 09:18:36 +0100
Organization: PlayStation Net Yaroze (SCEE)
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References: <35747c33.107351303@news.scea.sony.com> <3575A107.789BF738@netmagic.net>
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I've had exactly the same problem, it was weird as the "unpainted" bit
of the sprite will still mask out the background. I sorted mine out by 
making sure all the sprite images fell on 4 bit boundaries, (this was 
for a 16 colour sprite image). I guess if you are using TIM Util then
you won't have this prob as it will make sure they align correctly.
I am packing as many sprites into one image as possible, with
a utility I am developing, to save time, (i've got about 200 sprites 
or so).

cheers


Nick (S)
-- 

http://www.netyaroze-europe.com/~nslaven/


Elliott Lee wrote:
> 
> Are you absolutely sure that you didn't stick your CLUT into the
> image?  I accidentally did that a couple times.  My output was that
> no matter where I moved the image, it displayed fine except for one
> of the lines had garbage in it.  Upon closer examination I realized
> I had positioned the clut wrong and it ended up smack in the middle
> of the TIM.  Bwahahahaa....
> 
> - e!
> 
> Jamin Frederick wrote:
> >
> >
> >         I've been doing 2D stuff with the yaroze for quite a while
> > now, and have recently noticed something wrong with the display of 2d
> > tiles or sprites.  Occasionally I get a "banding" effect that blurs
> > just one vertical line of the tile or sprite, and the load to the main
> > memory is fine b/c I went as far as to look at the byte values of the
> > tim in there.  It seems like the LoadImage() function is transferring
> > the data into video memory wrong, or the actual hardware is blitting
> > to the screen wrong.  I haven't checked the data in the video mem yet,
> > but that's what i plan to do next.  If you'd like to see a screen shot
> > of this problem and think you can help, let me know and I'll send you
> > an attachment.
> >
> > Jamin
> 
> --
> - e!
>   tenchi@netmagic.net
>   http://www.netmagic.net/~tenchi/yaroze/