@three3d/effect/doc/api/effect.lengthdrawrange_fragment_pars_mainreplace.md

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## lengthDrawRange\_fragment\_pars\_mainReplace variable

针对于一切带有 lineDistance attribute 的几何体的材质的片元着色器增加的代码片段

**Signature:**

```typescript
lengthDrawRange_fragment_pars_mainReplace = "\nvarying float vLineDistance;\n"
```

## Remarks

对于除 LineDashedMaterial 之外的材质的顶点着色器增加的代码