Knowledge Base
Find answers to frequently asked questions about our services, products, and processes.
How to successfully convert a Revit BIM model into a lightweight augmented reality experience for a construction site?
Export the Revit model as FBX or IFC, then decimate the mesh in Blender or Autodesk 3ds Max to mobile-friendly polygon counts (under 200K polygons). Divide the model into location-based sections that load independently to avoid crashing mobile devices. Use physical marker placement throughout the building so the AR app can use image recognition to accurately overlay the BIM plans onto the physical construction in real-time.
Can augmented reality be used effectively to detect structural MEP clashes before physical construction begins?
Yes. By overlaying the BIM model's MEP (Mechanical, Electrical, Plumbing) systems onto the physical construction site via AR, project managers can identify clashes between planned systems and actual as-built conditions in real-time. This "clash detection" during construction catches conflicts that even thorough BIM coordination misses, preventing expensive rework. Tools like Dalux, Trimble Connect, and Autodesk BIM 360 support on-site AR clash visualization.
What are the best multiple marker image recognition techniques for anchoring AR objects on construction sites?
Use fiducial markers (like ArUco or AprilTag patterns) printed on weatherproof signs placed at known coordinates throughout the site. The AR application detects these markers via the camera, computes the device's exact position relative to the marker, and anchors the BIM overlay with centimeter-level accuracy. For marker-less tracking in open areas, combine GPS with visual-inertial odometry and surface detection from Lidar-equipped devices.