Stl import problem

Hello. I have a stl model from exported sculptgl. If i import this model in meshmixer or others, model seems smooth . But in three.js it seems like voxels. What is the reaseon of this?

Do you mind sharing the STL asset in this topic?

What OS and browser are you testing with?

Mugen87 , I solved the problem. The problem is vertex normals, after re compute vertex normals the problem is solved. Thank you.