[Home](./index.md) > [@three3d/effect](./effect.md) > [lengthDrawRange\_vertex\_mainReplace](./effect.lengthdrawrange_vertex_mainreplace.md) ## lengthDrawRange\_vertex\_mainReplace variable 针对于一切带有 lineDistance attribute 的几何体的材质的顶点着色器增加的代码 **Signature:** ```typescript lengthDrawRange_vertex_mainReplace = "\nattribute float lineDistance;\nvarying float vLineDistance;\nvoid main() {\n vLineDistance = lineDistance;\n" ``` ## Remarks 对于除 LineDashedMaterial 之外的材质的顶点着色器增加的代码