Mixbox: Pigment-Based Color Mixing

Usage

fn main() {
    let rgb1 = [0, 33, 133];   // blue
    let rgb2 = [252, 211, 0];  // yellow
    let t = 0.5;               // mixing ratio

    let [r, g, b] = mixbox::lerp(&rgb1, &rgb2, t);

    println!("{} {} {}", r, g, b);
}

Mixing Multiple Colors

let z1 = mixbox::rgb_to_latent(&rgb1);
let z2 = mixbox::rgb_to_latent(&rgb2);
let z3 = mixbox::rgb_to_latent(&rgb3);

let mut z_mix = [0.0; mixbox::LATENT_SIZE];

for i in 0..z_mix.len() {   // mix together:
    z_mix[i] = 0.3*z1[i] +  // 30% of rgb1
               0.6*z2[i] +  // 60% of rgb2
               0.1*z3[i];   // 10% of rgb3
}

let rgb_mix = mixbox::latent_to_rgb(&z_mix);

Pigment Colors

Pigment		RGB	Linear RGB
Cadmium Yellow		254, 236, 0	0.991, 0.839, 0.0
Hansa Yellow		252, 211, 0	0.973, 0.651, 0.0
Cadmium Orange		255, 105, 0	1.0, 0.141, 0.0
Cadmium Red		255, 39, 2	1.0, 0.02, 0.001
Quinacridone Magenta		128, 2, 46	0.216, 0.001, 0.027
Cobalt Violet		78, 0, 66	0.076, 0.0, 0.054
Ultramarine Blue		25, 0, 89	0.01, 0.0, 0.1
Cobalt Blue		0, 33, 133	0.0, 0.015, 0.235
Phthalo Blue		13, 27, 68	0.004, 0.011, 0.058
Phthalo Green		0, 60, 50	0.0, 0.045, 0.032
Permanent Green		7, 109, 22	0.002, 0.153, 0.008
Sap Green		107, 148, 4	0.147, 0.296, 0.001
Burnt Sienna		123, 72, 0	0.198, 0.065, 0.0

License

Copyright (c) 2022, Secret Weapons. All rights reserved.
Mixbox is provided under the CC BY-NC 4.0 license for non-commercial use only.
If you want to obtain commercial license, please contact: mixbox@scrtwpns.com