Threejs integration

Hi.
i´m try to integrate a threejs scene in webix, based on webix Blog:
https://blog.webix.com/using-third-party-libraries-with-webix-ui/

I see a black Panel (in the configured size) but no threejs content.
console don´t shows errors.

What wrent wrong ?
https://snippet.webix.com/8yuow7mo

https://snippet.webix.com/53jcun96
this is stripped code.
perhaps something wrong with threejs related part.

arghhhhhhh
Many thanks, after changing some THREE properties it works.

(My) Main Problem:
cameras z pos was a bit less (4 instead 400),