dithering...and you!

[Pixel_Outlaw]

I want to learn everything I can about dithering in the image processing sense. Are there any demos that do dithering with just a few colors in realtime?

[va!n]

just check this out:
http://en.wikipedia.org/wiki/Dither
http://en.wikipedia.org/wiki/Floyd-Steinberg_dithering

http://www.flipcode.com/archives/Image_Dither.shtml
http://www.whisqu.se/per/docs/graphics30.htm
http://www.codeproject.com/KB/GDI-plus/Image_Processing_Lab.aspx
http://www.codeproject.com/KB/graphics/cximage.aspx?fid=2472&df=90&mpp=25&noise=3&sort=Position&view=Quick&select=2413774

[Shockwave]

There are some.
I remember one on the Amiga by Digital that did vectors with dithering.

As far as I could tell, it was just a gourad routine with a limited colour palette though. It wouldn't be too hard to re-create it.

[hellfire]

Gateways / Trauma had an option to quantize & dither from hicolor to mode13.
never found that very attractive though...

[Shockwave]

Gateways / Trauma had an option to quantize & dither from hicolor to mode13.
never found that very attractive though...

That does seem like a strange option to add to a demo like that too.

[Pixel_Outlaw]

Yes, it does seem odd. Most of the dithering I've seen in 3D was done for "screendoor" transparency.