Path: chuka.playstation.co.uk!news From: Charlie Newsgroups: scee.yaroze.programming.2d_graphics Subject: Sprite bug ? or me ? Date: Sat, 04 Jul 1998 14:06:31 +0100 Organization: PlayStation Net Yaroze (SCEE) Lines: 29 Message-ID: <359E28D7.4E53@livemedia.co.uk> Reply-To: charlie@livemedia.co.uk NNTP-Posting-Host: livemedia.easynet.co.uk Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit X-Mailer: Mozilla 3.01 (Win95; I) Hi, I've got some strage behaviour happening with a some sprites. The sprites I'm using are 8 pixels high, and vary between 6,7,8,9 pixels wide, and they're being used with no scaling or rotation. What seems to be happening is that occasionally, on some of them, one vertical line in the sprite is drawn twice causing a distortion effect. Almost like its trying scale it horizontally in some way. Does that make any sense ? Are there any known bugs with sprites ? Any one got any ideas ? One thing has just occured to me .. The source image is an 8-bit 256 pixels square image, with the sprites living at various locations in there. I'm setting up a base GsSPRITE with u,v=0,0 and w,h=256,256 and then I'm copying various regions from the source image by modifying the u,v and w,h values of this base GsSPRITE. What I'm not doing is recalculating the 'Texture Page' info every time. Should this work ok ? It seems to other than the bug I'm talking about. Hope some of this makes sense to someone ! cheers Charlie P.S. Has the world cup and England Argentina etc, just bypassed Yaroze users, or is everyone just keeping out of the ng's, or does no-one care!