Greg Ewing wrote:
Ian Mallett wrote: I don't see how pure red, blue and yellow can be a valid subtractive basis....
Unfortunately history makes things confusing. The red, blue, yellow that people have been using for centuries are now often called magenta, cyan, yellow. But many people still call them red, blue, yellow. They aren't wrong to do so, but it can make color stuff confusing.
Normally the two realms don't mingle much -- computer people and lighting people use additive color and don't have to worry about subtractive color. Painters tend to concern themselves with only subtractive color. Some few of us straddle both. I frequently forget whether cyan and magenta refer to the primary blue and red lights or pigments. Oh well. [sigh]
Cheers,
- Miriam
--
If you don't have any failures then you're not trying hard enough.
- Dr. Charles Elachi, director of NASA's Jet Propulsion Laboratory
-----
Website: http://miriam-english.org
Blogs: http://miriam-e.dreamwidth.org
http://miriam-e.livejournal.com