Simple ways to create content-rich 3D WebPage/WebApp

I want to create a an interactive 3D based web page/application wherein, I can draw simple 3D shapes, shadows, custom 3D models (say .ply, .obj). I want this page to contain rich 3D content and should support both MAC and Windows. I am new to web development and very naive in coding. I have basic exposure on creating a webpage/web-application.

I understand all this can be done using WebGL (Interactive 3d Web Technology) . But it seems that building web pages using webGL native or using libraries such as Three.js is quite cumbersome. Is there a simpler tool/library/way to simply drop and style 3D elements?