Define what the customer can change
List every meaningful option: color, finish, material, component, size, accessory or package. For each option, define whether it changes appearance only or also changes price, SKU, availability or another business rule.
Audit the 3D assets
Production-ready browser assets should be lightweight enough for the intended devices while retaining the visual detail needed to sell the product. Existing CAD or offline-rendering assets often need conversion and optimization before they are suitable for WebGL.
Decide the end action
A configuration can lead to Add to Cart, Request a Quote, Save Configuration, Share, Book a Consultation or another workflow. That end action determines what state must be stored and which platform integrations are required.
Plan performance from the beginning
Geometry, texture resolution, material count, compression and lazy loading affect the experience. Mobile input and weaker-device fallbacks should be considered before the scene becomes too heavy to adapt.