SLX AR Lens brings marker-based augmented reality to the browser for products, industry, culture and retail experiences. This DEV.to version is a short engineering note extracted from the case study, with the complete English page linked at the end. Stack at a glance WebAR, WebXR, Three.js, JavaScript, 3D visualization, Marker tracking. Why this matters AR adoption is often blocked by native apps, proprietary SDKs and setup friction. WebAR lowers that barrier for product, retail, industrial and cultural use cases. A marker-based browser experience can be enough when the goal is to reveal 3D content quickly from a physical object or printed surface. Architecture notes Keep the 3D assets optimized for mobile GPUs: geometry size, texture weight and load order have a direct impact on the experience. Use the browser as the runtime, but still design the experience like a constrained real-time system. Separate tracking, scene setup and content configuration so different use cases can share the same technical base.…