This extension requires one license per seat
Requires Unity 5.3.3 or higher.
Official Website
uShader Engine PRO it's a most powerful IDE for a visual scripting of a shaders.
Editor was created by people involved in the development of a shaders for a 5 more years.
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Documentation: En | Ru
Web demos
With uSE PRO you can do everything that you only want:
Surface shaders of any complexity.
Physically Based Shading (PBS)
Multiple-pass shading
Translucent bodies
Global Illumination
Vertex animation
Terrain shading
Custom light models
Tessellation (5 types)
Real-time refraction
Templates of common light models
And much more...
For maximum convenience, the uSE has a built-in:
Warnings system
Errors system
Tooltips system
InStep previews system
Also in the package you will find a set of examples of using the nodes, visual documentation and bundle of ready to use shaders.