Indigo Renderer Forum

First let me say, I just used Violet for the first time last night, and it really makes the whole process of rendering a lot less stressful. And being able to add chromatic abberation to a render has been something I've wanted for a long time.
My question is about the colors used, the greenish and purplish colors. Disgustingly ugly on their own, but what can you do?
Would these colors be the same for all lenses, reguardless of the chemicals used to coat them?
Actually, I have another question: I know CA is an effect due to refraction of different wavelengths in the glass. Is this inherently different from when an object passes in front of another object (especially when the two objects have a high contrast), and creates red and/or blue edges? You don't need a camera to see this. And is this something that Indigo already calculates?

CA heavily depends on the used glass and the lens system.
It actually should also be able to shift the yellow/blue part... When I was very young (around 10, the last time), I found an old loupe at my grandparents' house... A single lens system with extreme chromatic dispersion. There where yellow and blue colour-seams, though... green/magenta wasn't visible at all...

The violet effect isn't really good... It kinda splits the colours in a too sharp way. No wonder: Indigo renders, as if you'd use an entirely perfect camera. An ideal one. How could you have a usually unwanted lensing effect in a perfect lens?

Though, now, you can add "real" bloom and glare, directly in Indigo, which is far more realistic than the violet bloom and glare... (due to this, it's less controllable, though) It also shifts colours

Shooting your scene though a single element made of the correct Schott glass should produce more realistic CA effects.
It'll probably slow your render down too

...and it'll also distort the image, which makes it hard to know the viewing angle and stuff...