> From : Andrew Collier <[EMAIL PROTECTED]> > Date : Sun, 12 Jan 2003 17:01:15 +0000 >I don't quite see what you're getting at with your descriptions above... > >However, the way I see it; every byte that you clear costs time. The >ideal situation is when you're only clearing bytes which were used in >the previous frame and were unused in the current frame. If you clear a >block of 16x16 pixels, that's likely to be a lot of bytes which were >never filled and so didn't need to be blacked out.
The idea was probably rubbish anyway. Would it instead be smart to use a faintly dirty rectange approach, but to continually draw to the same buffer using simple palette effects to advance the frame (so you can get through 15 frames before you have to change buffers, allowing for the need for a constant black entry), and clear 1/15th of the next buffer every scanline? With a 48 pixel status display - a quick estimation on my part without having a screenshot to hand - thats the equivalent of clearing only 9.6 scanlines per frame. From: "Frode Tenneboe" <[EMAIL PROTECTED]> Subject: Re: Elite port > Incidentally, does anybody have the SAM version? I do. And also I have a deprotected .dsk version of it, provided by someone on this list some time ago. Perhaps Ian Bell doesn't offer it because its just a way of running the Spectrum version with much fewer available emulators? -Thomas When words aren't enough - Vodafone live! A new world of colour, sounds, picture messages and information on your mobile. <a href="http://ad.doubleclick.net/clk;4909903;7724245;q?http://www.vodafone.co.uk/live";> Click here</a> to find out more.
