>One question that's been bugging me (but only a bit) - why are all the
>pictures crummy jpegs? i'm assuming the answer is 'because they are all
>from scanned photos off the telly'

Well, if it's that much of a problem, replace JPG with PICT and you'll get
the original, non-lossily compressed image (providing you have something
which can read PICTs, of course).

But for the default images, as with anything on the web, the choice was
either a GIF ar a JPG... GIFs are in 256 colours and I thought the
dithering looked pretty bad on most of the images. The images always DO
have more than 16 colours, because there is an antialiasing between pixels;
remember Sam's pixels are actually rectangular instead of square, so there
can _never_ be an exact 1:1 mapping without distorting the shape of the
picture.

It's still possible for me to increase the contrast a bit and save the JPGs
with a higher quality, but the file size would increase and the originals
aren't amazingly good in the first place. The basic problem is that my TV
card munges adjacent horizontal lines together, so the images will always
be blurred. I'm afraid there's nothing I can do about that, unless someone
else wants to go through the entire demobase and take their own screenshots
instead.

It would be possible to get perfect picture quality by using SimCoupe
instead. But that would be quite a significant hassle since I'd have to use
someone else's PC to make the images from real disks (because the MacOS
SimCoupe port has no disk i/o support whatsoever) and quite a lot of
effects (timing-dependent border effects etc) wouldn't look exactly the
same anyway. Some programs won't even run at all, MNEMOdemo1 part 2 is a
case in point.

The screenshots are only there, after all, to give people an impression of
what's in the demo - or remind people who've seen it before. If you want to
see it properly, with sound and moving images and all, the best plan is to
go load it on a real Sam...

Andrew

BTW. As for the DOS demo picture, what do want to see? It's a picture of
three small squares and some dot stars. What exactly did you expect in the
screenshot, when that's all that hapenned in that part of the demo?

--
| Andrew Collier | email [EMAIL PROTECTED]       | Talk sense to a
| Part 2 NatSci  | http://carou.sel.cam.ac.uk/ | fool and he
+----------------+-----------------------------+ calls you foolish
| Selwyn College Student Computer Support Team |   -- Euripides


Reply via email to