ShaderUtil.UpdateShaderAsset

public static void UpdateShaderAsset(AssetImporters.AssetImportContext context, Shader shader, string source, bool compileInitialShaderVariants);

public static void UpdateShaderAsset(Shader shader, string source, bool compileInitialShaderVariants);

public static void UpdateShaderAsset(Shader shader, string source);

Parameters

context	A context object that the asset system needs to register shader dependencies properly.
source	A string that contains a shader written in ShaderLab code.
compileInitialShaderVariants	Set to true to compile the ShaderLab code contained in the source string; otherwise false.
shader	The Shader to update.

Replaces the existing source code in the specified shader with the source code in the supplied string.