Photorealistic Rendering of 3D shapes Dynamically

Question

I need some suggestion. I want a tool in which I can get Realistic Looking images of My 3D shapes. All 3D shapes are created runtime, are not FBX or any pre-existing 3D model. I have created 3D shapes in:

1. Unity3D
2. Python
3. ThreeJS

Examples:

ThreeJS

Unity3D

Python

These shapes are not FBX shapes, are just created run-time. Now my targetted output is to display some realistic looking screenshots. I have a room model and I will set these shapes somewhere inside room. Then I just want to transfer these shapes to any tool and get realistic screenshots. Any tool that can do it is okay for me.

Target output examples:

Any tool that can do it is okay for me. I just need solution.