Pigment Mixing into Digital Painting

1. mixbox

   1 34 3,078 0.0 C#

   Mixbox is a library for natural color mixing based on real pigments.

   

   Personally, I don't care about the library, and just want the pure math implementation for shaders and such. For that, they have the algorithm available here in GLSL, vec3 mixbox_lerp is the function you want:

   https://github.com/scrtwpns/mixbox/blob/master/shaders/mixbo...

   I don't have time to whip up a demo, but it seems like it's pretty well optimized and it looks really nice in the examples. Great work from these folks.

2. Nutrient

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3. ebsynth

   2 78 1,575 0.0 C

   Fast Example-based Image Synthesis and Style Transfer

   

   I'd be curious to learn why Secret Weapons didn't raise $100M in venture funding two or three years ago, before the start of the AI video boom.

   They were first on the scene with EbSynth [1], which was the first widely used AI-powered video-to-video style transfer system. EbSynth gave rise to comedians like Joel Haver [2] and lots of others like him.

   Several other companies [3] used EbSynth to base their technology on and wound up raising large seed rounds. Major musicians used EbSynth either directly or through these other companies to make music videos [4,5].

   Secret Weapons was in a great position to conquer AI video and AI creative tools, but they seemingly slept on it.

   [1] https://ebsynth.com/

   [2] https://www.youtube.com/playlist?list=PLKtIcOP0WvJDZemPYZZQS...

   [3] https://kaiber.ai/ and others

   [4] Linkin Park https://www.youtube.com/watch?v=7NK_JOkuSVY

   [5] Magdalena Bay https://www.youtube.com/watch?v=dXLCHvRsgRQ

4. pigment-painter

   3 1 24 1.7 C

   

   I was wondering what the catch was :-)

   GPLv3 reimplementation linked in that thread: https://github.com/joeedh/pigment-painter

5. libmypaint

   4 3 320 4.8 C

   libmypaint, a.k.a. "brushlib", is a library for making brushstrokes which is used by MyPaint and other projects.

   

   As does ArtRage? https://www.deviantart.com/artrageteam/art/Realistic-Color-B...

   MyPaint also has it though, and that's open source: https://mypaint.app/blog/2019/01/26/MyPaint-2.0-alpha/ (https://github.com/mypaint/libmypaint/pull/56 mentions using 7 primaries for blending), and another older thread about other methods: https://community.mypaint.app/t/real-color-blending-wip/390 . MyPaint IIUC is integrated into Gimp, so I assume Gimp can also do it using the MyPaint brush engine.

6. Blender-FLIP-Fluids

   5 34 1,758 4.6 C++

   The FLIP Fluids addon is a tool that helps you set up, run, and render high quality liquid fluid effects all within Blender, the free and open source 3D creation suite.

   

   The addon you're referring to is already a polished product: https://github.com/rlguy/Blender-FLIP-Fluids/wiki/Mixbox-Ins...

   It works as a kind of extension supplied with the paid FLIP Fluids addon. Note that the fluid solver built into Blender is also an implementation of FLIP, but "FLIP Fluids" is a separate product. I've played with fluid simulation in Blender quite a bit. The bundled FLIP is very limited, FLIP Fluids is great, and the color mixing is amazing!

7. spectral.js

   6 5 846 2.8 JavaScript

   Spectral.js is a paint like color mixing library utilizing the Kubelka-Munk theory.

   

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