three.js

Just want to start with three.js what materials do you recommend? Also what framework would match perfectly with it? Svelte or React.

I want to build a web app with these features:

• render a 3D object in the browser
• when the user touches a part of the object I retrieve data or send API requesst to a database
• get data in real-time from the backend and display it on the object
• cache 3D object on the browser to avoid its loading (with cost)

I'm more a JavaScript developer with a passion for React and Node.js ecosystem, So I want to know for this kind of project it is better to build it with Next.js+three.js for frontend and Nodes.js + Express + Prisma + PostgreSQL Or build it directly with the API functionalities of Next.js? I thought having these two separate parts will be more scalable and easy to maintain.

Thanks.

We already have an existing 3d interactive application for windows, mac, and iOS devices and have planned to move that app to the web for high availability to different types of users. I have been searching for different options for it. Our existing application is made in Unity so we prefer to work on unity webgl but it also has its drawbacks. Other than that we are also thinking to change the tech stack to three.js or BabylonJS due to their high compatibility with the web ecosystem. I want to know which engine/library/framework we should use for the development of our 3d web application. Also with unity webgl, we want to develop all UI parts in web technologies only and will use the unity3d for 3d part only.

Points that are very important to consider -

1. Memory optimization and allocation
2. Quality
3. Shaders
4. Materials
5. Lighting
6. Mesh editing, mesh creation at runtime
7. Ar
8. Vr
9. Support on different browsers including mobile browsers
10. Physics(gravity, collision, cloth simulation, etc.)
11. Initial load time
12. Speed and performance
13. Max vertices count. What happens when we load models exceeding max vertex count?
14. Development time
15. Learning curve (Unity3d we already working on)
16. Ease of use. What artists can do using any platform eg. in unity3d, artists can edit materials, set up lighting etc?
17. Future scope
18. Scalability
19. Integration with web ecosystem

I want a advice on what to use as a beginner three.js or WebGL?