The original title is "I Put Real Planes in the Sky With AR. The 3D Was the Easy Part."

Short summary

An engineering narrative about building Planes XR, a location-based AR app that overlays real aircraft positions on the sky using live flight data. The author argues that 3D rendering is the easy part — the real challenges are sensor fusion for accurate positioning, stable world anchoring, and building a reliable live-data pipeline. The lesson generalizes: the data plumbing behind an immersive experience matters as much as the visuals.

• •Location-based AR requires aligning user position, heading, and content coordinates simultaneously
• •Raw GPS accuracy is insufficient for precise overlay — sensor fusion is the core engineering challenge
• •Live-data pipelines feeding AR are as much work as the rendering itself and determine user trust

Generated with AI, which can make mistakes.