HCL Utilities | Substance Designer node pack

The "HCL Utilities" v2.0 is a package of several tools for Substance 3D Suite that allows you to work your colors in the HCL color space (Hue, Chrominance, Luminance).
The HCL color space lets you to keep consistency in your Luminance while working on the Hue or Chrominance, thus keeping consistency on the color perception of your textures, and the final lighting of your scene.
More info on my artstation :
https://www.artstation.com/artwork/ybGP9x

The "HCL Utilities" node pack includes fifteen nodes  ( .sbsar ) :

Substance 3D Designer :

- HCL : Works the same as an HSL node, but in the HCL color space to keep Luminance consistency.

- Luminance Extract : Extract the Luminance component of any color input, in both sRGB and Linear space. Use it to compare your Albedo Luminance form PBR charts and scanned materials. This node is the best way to check your luminance values nowaday.

- Chrominance Extract : Extract the chominance of any color input. Has better results than the Substance default Chrominance Extract .

- HCL Color Variation : Create color variations form any color input by modulating its HCL components.

- HCL Split : Split an RGB image in 3 Grayscale HCL component. This node is very useful to breakdown a scanned material albedo and learn how it works.

- HCL Merge : Merge 3 Grayscale component in the HCL color space to get a RGB image.

- RGB to HCL : Simply convert an RGB input to a HCL output.

- HCL to RGB : Simply convert an HCL input to a RGB output.

Substance 3D Painter :

- HCL

- Luminance Extract

- Chrominance Extract

Substance 3D Painter :

- HCL

- Luminance Extract

- Chrominance Extract

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License

"Personal & Indie Licenses", and "Studio Licenses" are both available. Personal licenses do not apply to companies or organizations of revenue over $100K.

*Digital products are non-refundable

Support

If you notice any problem, bug, crashes with any of thoses tools, please contact me so I can find a solution and patch the tools.

Documentation 

https://en.wikipedia.org/wiki/HCL_color_space
http://hclwizard.org/why-hcl/
https://howlettstudios.com/articles/2017/5/6/the-problem-with-hsv

Special Thanks

Thanks to Julien Chevalier,  Ben Wilson and  Geoffrey Rosin for their Beta Testing, feedback and inspiration.