I have built custom mesh with the aid of triangles, and there is a problem in my design in rotation and zoom in/out. I mean when I rotate or zoom in ( or out) some of my triangles vanished.
I just added
// vertexDataArray[i].getBoundingInfo().update(mesh._worldMatrix);
// vertexDataArray[i].refreshBoundingInfo();
to my code but again the problem didn’t solve.