Threejs, how to get rid of triangular distortion [Solved]?

Question

three.js

Hello.
I make a simple 3d example and draw a few simple elements: Or like this: I don’t see such jambs in the enlarged version: But if you look at the object from the inside, then there is a complete disgrace: There should be no triangles when drawing. Is it possible to somehow configure threejs so that there are no triangles or do I need to do something with the model?

Answer 1

The issue was in the camera. It was:
camera = new THREE.PerspectiveCamera(45, width / height, 0.1, 100000);
Now :
camera = new THREE.PerspectiveCamera(45, width / height, 10, 100000);
Result: