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Compare to Legacy Shader, Surface Shader unifies the shader process and exposes fewer details to the shader writers. Therefore, starting from version 3.72, Surface Shader appears as the default ‘builtin-standard’.
However, both Legacy Shader and Surface Shader have their pros and cons.
| Type | Pros | Cons |
|---|---|---|
| Legacy Shader | More flexible when facing special requirements | Exposes too many details to the users, makes it difficult to maintain when the engine is upgraded |
| Surface Shader | Unified shading process, no need to worry about details; User-level code is easier to maintain when the engine is upgraded | Need to well-understand the whole implementation mechanism to master;Limited customizable features |
In addition, the builtin-unit.effect offered by the engine still uses part of the legacy shader library.
Mastering Legacy Shader can also help you to understand more implementation details of Cocos Shaders.
