Welcome!
I help with wikipedia:
"3D rendering is the 3D computer graphics process of converting 3D models into 2D images on a computer. 3D renders may include photorealistic effects or non-photorealistic styles."
So you can create a model and do some very realistic "photos" of the model with renderings.

For the parts list there is a sort of trick, this is the post: https://www.mecabricks.com/en/forum/topic/85

Ciao!