24 bit graphics
06-Dec-90 17:08:21
Sb: #8200-24 bit graphics
Fm: Black Belt Systems 76004,1771
To: Syndesis 76004,1763
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The number of our customers that use the HAM-E to go to video seems (by our
best guess) to be about 5%. I have long suspected that the "go to video"
segment of the market was small, and the "wanna good image" segment was
large. CBM pushes video hard as can be, and the mags all jump on the
bandwagon, but no one I have ever had as an "Amiga Buddy" in Florida or
here (mind you, there are only about 30 Amigas in Glasgow, not counting the
ones Black Belt owns) ever went to video at all. That would include about
100 people, at a guess.
The HAM-E produces a beautiful image that is far better than anything the
Amiga can do by itself, so it is inevitible that people who _do_ want to go
to video will use it that way; and as I carefully point out, once you do,
you have composite quality, which is to say, yech. :^)
I hope you can imagine people who avoid composite like the plague. I'm one.
I want HDTV, preferably RGB from camera to monitor, and as high a spacial
resolution as I can get. I'm not holding my breath, of course. :^)
One final issue. An RGB signal, by it's very nature, can change from one
color to another color (any color to any color) in one pixels time, with a
completely sharp edge, to the limit of the monitors dot pitch and the
output DAC speed. A composite signal can make approximately 100 color
changes per line of video, max, period, no matter what. Brightness changes
are much better, and achieve almost 300/line. The thing that saves
composite from being useless is that these 100 changes can occur anywhere
on a line, with the single limit that they have to be about 1/100th away
horizontally from the _last_ color change on that same line. Try drawing a
blue box on a red backround in Toaster Paint and then render it to the
toaster's output. You'll see an "artifact" that is approximately 1% of the
toal line length, and ugly as segment registers.
An RGB device, like the FireCracker or the HAM-E will render this to an RGB
monitor perfectly. And _that_ is why they are superior.
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