Feature Request: AE 3D - Simple Modeling & Texturing

I don't currently see a way to generate simple 3d primitives such as cone shapes directly inside AE without a plugin... or a way to create new translucent textures and outlines within the app as well. Currently I am experimenting with Spline.Design to achieve what you see in the attached screenshots, but it seems to me that AE should be capable of this kind of simple 3D modeling/texturing. I understand that Substance is being promoted for 3D purposes, but that seems like overkill for my needs and would prefer to stick with AE if possible.