Question about mesh disappears when camera move close to mesh

I create a rounded banker thanks to prisoner849(Profile - prisoner849 - three.js forum) 's help.


but some of the meshes disappeared everytime when i move my camera inside

my camera is = new THREE.PerspectiveCamera(90, dom.clientWidth / dom.clientHeight, 0.01, 20000)

any tips would be great

To check if this is a culling issue, you can traverse through the object and set the frustumCulled property to false. Do you see any difference?

Yes! This works marvelous!Thanks man!
Does this means that the mesh does not actually inside camera’s view even it should be in our reality view?