You can only import objects created by Dreams (by users or Media molecule developers who provide plenty of content).
- You can start by making simple 3D shapes. You can start by a predefined very simple 3D object like a cube or a slab (or import any object from Internet) then you can modify the shape using your controller by grabbing it, you turn around the object and modify the shape / enlarge / reduce it. Then you can apply on the shape any kind of 'textures' (predefined), add color(s) by using different paint tools and then you apply on it any physical property you want (shiny, mat, metallic, reflexive etc.).
- To modify any 3D object you have plenty of ways, you grab it to make larger depending of how you are placed around it, you can erase some parts with a virtual eraser and many more ways to modify the object to make round shapes etc.
- By cloning it while moving in the direction you want using the motion controls you can make a complex object sum of plenty of clones merged into one final (and often bizarre) object (here the move controller are better than the DS4, but you can do anything with DS4 too, the motion controls are just less confortable).
- Once you have this object you save it in order to be useable several times in your dream. Each time you modify it, it'll be updated and updated in your general scene (which will be another scene). Each object saved that way has basic versioning (as well as anything published privately or publicly).
- Any object you create can be enlarged or reduced, as much as you want and everything can be easily moved around in the scene.
- Objects can be grouped to be moved (or modified) easily and then ungrouped.
- For the wings you can do one and clone it with a mirror function to make the second wing.
- Then you can add lighting by physically placing predefined and configurable lighting objects around it.
- Then you add a camera (or more) than can also be configurated.
And of course you can start working on an object you have imported. For instance if you need a chair, house or bridge or even a wall with an effect, texture you like in your game, you simply import one of the many available.
And there are plenty of others ways to create and modifiy 3D objects. Some of them are very creative: remember, you can record anything you do in a scene...which is really powerful.
I hope I answered your question.
Some people in art school or working on videogames or as artist in offline rendering are doing incredible stuff. I know an ex Quantic Dreams artist buying the early access not long ago and here a freelance artist
https://www.artstation.com/mickaelgallo
https://twitter.com/gallo_mickael