怎么在Unity3D中实现这种线框效果

可以自己写一个ShaderShader "Custom/WireFrame"{Properties{_LineColor ("Line Color", Color) = (1,1,1,1)_GridColor ("Grid Color", Color) = (1,1,1,0)_LineWidth ("Line Width", float) = 0.2}SubShader{Pass{//Tags { "RenderType" = "Transparent" }// Blend SrcAlpha···