three.js - Use directional light with WireframeHelper -

three.js - Use directional light with WireframeHelper -

i used three.meshlambertmaterial , set wireframe: true in previous version of threejs, worked well.

but after update r69, looks strange.

and tried utilize wireframehelper prepare problem, can not utilize directional lite now. after examining source code, think reason wireframehelper using linebasicmaterical. there other solution add together directional lite on it?

thanks.

three.js