Still looking for neon brown.
Impossible color
31–40 of 61 posts
Re: Impossible color
#32Still looking for neon brown.
You joke, but that’s a great example: brown is really dark orange; neon is fluorescent, and so brighter than your eye thinks should be possible for reflection, so sadly, no neon poo emoji.
Re: Impossible color
#33Reminds me of The Color Out of Space. https://en.m.wikipedia.org/wiki/The_Colour_Out_of_Space
Reminds me of Pratchett's Octarine. And seems reasonable to assume that impossible colours are only visible to wizards and cats.
Or "ulfire" and "jale" from "A Voyage to Arcturus" by David Lindsay.
Re: Impossible color
#34Isn’t it trivial to show impossible colors in VR by texturing an object in different colors like blue and yellow for each eye’s perspective?
Artist Sterling Crispin has a VR painting program [1] that explores this allowing you to paint different colors to each eye simultaneously.
Re: Impossible color
#35Re: Impossible color
#36I get intensely vivid 'stygian blue' hypnagogic hallucinations right before I fall asleep. It's an intensely dark/bright blue. Very hard to describe. It usually manifests as a blob of color that pulses from the outer-edges inwards.
Humorously, Negativland, the amazing decades old plunderphonics group, had a whole prank site[1] and a Over the Edge[2] radio show[3] regarding the 'fourth primary color', Squant. This was also the only color with it's own smell as well. Negativland also had a plugin for web-browser that allowed you to 'see' this magical fourth primary color.
[1]https://www.negativland.com/archives/015squant/story.html
Re: Impossible color
#37Earlier quoted context omitted.
Can you elaborate on why your don't get grey? That was always what I expected and I was surprised that you just get a muddy brown if you mix random paints.
One practical reason you don’t get gray is that pigments have to be real chemicals and so you can’t have a green that perfectly balances a given red’s spectrum. For transparent inks on a white background, if their spectra did match perfectly, you would get a perfect gray. But those perfect dyes don’t exist (or are expensive), hence the K in the CMYK color model. For opaque paint, it’s weirder: paint scatters and abso…
Thanks. This reminds me of the part of "Surely You're Joking, Mr. Feynman" where a painter says you can mix white and red to get yellow and Feynman says it's impossible and it turns out the painter would use a little bit of yellow to "sharpen it up" [1]. Any way that is possible without yellow paint?
[1] http://blog.everydayscientist.com/wp-content/uploads/feynman...
Re: Impossible color
#38Earlier quoted context omitted.
Isn’t brown just a reddish green. Or a greenish red.
Yes and no. Brown is just dark orange, which you can sort of get by mixing red and green paints. Paint mixing is weird, though. (I’ve written paint-matching software professionally.)
Sorta, except when dark orange is dark orange and not brown. Your brain will decide between them based on context. The shaded half of a (fruit) orange may well have the same spectrum as the lighted tree trunk it's hanging on, but you will see two different colors.