Unity - Manual: ShaderLab syntax: Alpha testing
Develop once, publish everywhere! Unity is the ultimate tool for video game development, architectural visualizations, and interactive media installations - publish to the web, Windows, OS X, Wii, Xbox 360, and iPhone with many more platforms to come.
Unity - Manual: Particle System vertex streams and Standard Shader support
Unity - Manual: ShaderLab: Stencil
Unity Products:Amplify Shader Editor/Manual - Amplify Creations Wiki
GitHub - Centribo/Unity-Shader-Basics-Tutorial: A introduction into creating shaders for Unity
Unity - Manual: Material charts
Cocos Creator 3.8 Manual - Toon Shading
Standard Material 3D and ORM Material 3D — Godot Engine (stable) documentation in English
Unity 2021 Shaders and Effects Cookbook - Fourth Edition
Unity - Manual: How do I Import Alpha Textures?
unity - How can I change a shader alpha color in script? - Game Development Stack Exchange
Unity - Manual: Smoothness
Modifying Alpha in Unity Standard Shader - Game Development Stack Exchange
Intro to the Shader Pipeline