[Home](./index.md) > [@three3d/effect](./effect.md) > [createOnBeforeCompile](./effect.createonbeforecompile.md) ## createOnBeforeCompile() function 创建 onBeforeCompile 函数 **Signature:** ```typescript export declare function createOnBeforeCompile>(mender: OnBeforeCompile, uniforms?: U, material?: Material): (shader: import("three").Shader, renderer: import("three").WebGLRenderer) => void; ``` ## Parameters | Parameter | Type | Description | | --- | --- | --- | | mender | [OnBeforeCompile](./effect.onbeforecompile.md) | | | uniforms | U | _(Optional)_ | | material | Material | _(Optional)_ | **Returns:** (shader: import("three").Shader, renderer: import("three").WebGLRenderer) => void