Spark AR - Advanced Hair Color Shader

Custom shader to change hair color in Spark AR.
The common technique used to change user's hair color is to create a masked flat color overlay in patch editor and blend it with desaturated cameraTexture. There's nothing bad in doing it like this, that's exactly what is done in Spark's original template, but you can notice that colors won't be very responsive on all the users and the result will be pretty flat. That's why I had the need to create something a bit better. I created a shader that does the job for you and picks color from histograms not flat colors: that gives you the ability to control blending from shadows to highlights gaining a way better organic look.

• Easy-to-use: Applies as a material.
• Best color control possible.
• Way more realistic results in right conditions than ordinary techniques.
• Works with Render Passes projects too.
• Histograms template included.

Have questions? Feel free to contact me on Instagram!
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