Low.3D

Recent Customer Case Studies

  • Sunglass.io and GrabCAD – using low.3D technology to increase usability of 3D view functionality
  • Mammoth Cave LiDAR – using low.3D technology to repair and optimize LiDAR data for National Park Service and Cave Research Foundationv
  • Artec 3D – integrating low.3D Technology to improve 3D scanner OEM software
  • PTC – using low.3D technology to optimize CATIA CGRs files for Creo 2.0 heterogeneous assemblies and generating high quality preview images and thumbnails
  • SketchFab – using low.3D technology to generate low resolution models to reduce storage and bandwidth requirements

    • low.3D Technology in Sunglass.io

    Sunglass.io uses low.3D 3D model optimization for on-line visualization and mobile applications:





    low.3D Technology for GrabCAD

    GrabCAD has faced several performance challenges with recently introduced interactive “3D View” functionality:
  • CAD tools export huge, oversampled STL files (50-500 Mb)
  • Long loading time (up to several minutes)
  • High storage and bandwidth requirements

    • Benefits of using low.3D optimization technology for 3D View:

  • Reduces up to 10 times model loadtime and storage/memory/bandwidth requirements for STL models
  • Provides better visualization quality and more format supports
  • Allows high-quality 3D thumbnails and produces instant LOD on-demand


    • 3D View case studies







    Original model:
  • 535,704 triangles
  • Size: 26 Mb
  • Loading time: 20 – 200 sec







    • Decimated model, 95%:
  • 535,704 triangles
  • Size: 1.3 Mb
  • Loading time: 5 – 12 sec


    • © Mercedes Class C model by Greg Plol, from grabcad.com

    low.3D Technology for LiDAR data optimization Cave

    Cave Research Foundation (CRF) and Washington University in St. Louis (WUSTL) performed a ground-breaking LiDAR scan of Mammoth Cave four miles trail in central Kentucky, USA

    A data summary of the project:
  • Over 18 million data points collected
  • Over 15 million triangles used to create surfaces

    • “The ability to collect massive point data sets appears to be well beyond the ability to do anything meaningful with the data back at the office.”

    Aaron Addison, GIS Coordinator from WUSTL


    Low.3D teamed up with WUSTL to face the challenge:
  • Original irregular TIN produced from LiDAR data was repared and optimized by low.3D custom GSDP solution to remove overlapped and intercrossing triangles
  • The optimized mesh was farther reduced by 90% with low.3D SDK to be suitable for the animation software

    • Mammoth Cave LiDAR data repaired and optimized by low.3D 3D model optimization tools:




    Original mesh - 684,448 triangles,68MB



    low.3D optimized mesh – 68,443 triangles,4.6MB


    low.3D Technology for 3D scanner OEM software

    Typical problems with 3D scanner OEM software:


  • Takes hours to process scanned data to generate 3D models
  • Produces oversampled, low quality mesh
  • Creates irregular model topology (with gaps, overlaps, duplications)
  • Generated 3D models are too heavy for visualization and for import into 3rd party software products
  • Uses generic polygon-reducing algorithms that produce non-optimized, inferior 3D models




    • =


    An example from 3D scanner (0.5mm resolution)


    Original scan:
    206,650 triangles, 18.3MB



    low.3D optimized model
    (80% reduction):
    41,330 triangles, 2.4MB


    Low.3D Custom Solution for Reality Capture Data Processing


  • Ultra fast 3D model optimization produces high quality mesh
  • Repairs model topology and reduces models up to 100 times with no degradation in visual quality and geometry
  • Generates simplified models and instant LOD-chains specially optimized for online visualization, Virtual/Augmented reality and other customer applications



    • Original scan:
    27,404,500 triangles, 1.5GB
    OEM processing: 7 hours, 12GB RAM

    low.3D Optimization 90%:
    2,740,345 triangles, 134.8MB
    Processing: 17 min, 4GB

    low.3D 99%:
    273,986 triangles,
    9.5MB

    low.3D 99.9%:
    27,175 triangles,
    0.8MB


    low.3D Technology for PTC



    Benefits of using low.3D advanced 3D model optimization and high quality decimation in PTC products:


  • Optimize internal geometry tessallation to reduce model size and decrease part retrieval time
  • Decimate 3D party CAD models for run-time visualiztion in Creo 2.0 hetergeneous assemblies
  • Produce high quality 3D thumbnails for Windchill CAD Document pages and Model Preview images for File → Open dialogs in Creo
  • Exploit Instant-LOD technology for CAD model comparison, 3D search and shape recognition

    • low.3D optimization for CAD models – 90% reduction

  • 10 times less nodes and triangles
  • 10 times less memory and disk space

    • 242782 triangles



    2426 triangles





    CATIA CGR assembly low.3D optimized for run-time visualiztion in Creo 2.0 hetergeneous assembly








    Original model,
    5.2M triangles








    Reduced model,
    52K triangles