Path: chuka.playstation.co.uk!news From: James Shaughnessy Newsgroups: scee.yaroze.programming.2d_graphics Subject: Re: Speed of ClearImage & MoveImage Date: Wed, 11 Feb 1998 18:10:25 +0000 Organization: Bacardi Ferrari V12 Lines: 22 Message-ID: <34E1E991.7392@manc.u-net.com> References: <34DA30A9.1AE@manc.u-net.com> <34DB2739.6DBFCB37@ndirect.co.uk> NNTP-Posting-Host: manc.u-net.com Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit X-Mailer: Mozilla 3.0 (Win95; I) Alex Herbert wrote: > Just a thought... > Isn't it quicker to use a single pixel sprite or line? Yes indeed it is the way forward. I was originally not using any GsSprites or ordering tables because I thought the GPU automatically cleared the drawing area when rendering the sprites, but recently found out that that's what GsSortClear does (DOH!), so I just removed that, defined Clip2D as my virtual screen and VOILA, LOADSABULLETS. Well, I am new to all this you see (had it 6 weeks)... Also I was thinking that when using double buffering there is an inevitable 2-frame lag of what you input and what you see, so there's one reason for using a virtual screen (only 1 frame behind). Anyhoo, my virtual screen is 640x512x16bit so it can't be double-buffered anyway... etc etc. (just thinking aloud amigos..) Jim -- ----------------------------------------- James Shaughnessy james@manc.u-net.com http://www.netyaroze-europe.com/~shaughnj -----------------------------------------