Physics Stack Exchange is a question and answer site for active researchers, academics and students of physics. Join them; it only takes a minute:

Sign up
Here's how it works:
  1. Anybody can ask a question
  2. Anybody can answer
  3. The best answers are voted up and rise to the top

I post the question here several minutes ago.

In theory, additive mixing Red color and Green color produces Yellow color.

In my mental model, additive mixing opaque Red and opaque Green will produce opaque Yellow.

But the following attempt, I got a result that is different from my mental model.


alt text

share|cite|improve this question

closed as off topic by Mark Eichenlaub, space_cadet, mbq Jan 1 '11 at 20:40

Questions on Physics Stack Exchange are expected to relate to physics within the scope defined by the community. Consider editing the question or leaving comments for improvement if you believe the question can be reworded to fit within the scope. Read more about reopening questions here.If this question can be reworded to fit the rules in the help center, please edit the question.

Not a physics question. If you rephrase to ask about the physical different between adding light and adding pigments, it would be good. At the moment, you're asking about the output of computer software. The first place you asked the question was the right one. – Mark Eichenlaub Jan 1 '11 at 20:09

You've darkened the center color more, I think that's the problem. Try lightening it somewhat and I think you'll have the right color.

share|cite|improve this answer

Not the answer you're looking for? Browse other questions tagged or ask your own question.