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ContextCapture | Descartes | Pointools | Orbit Wiki Tiling Tips
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    • +Reality Modeling Wiki
    • +Bentley I/RAS B
    • +Bentley LumenRT
    • +Bentley Pointools
    • -ContextCapture -
      • +ContextCapture User Guides
      • +ContextCapture - Release information
      • +ContextCapture Technical Previews
      • -ContextCapture - How to
        • Camera Recommendation for ContextCapture
        • Changing graphics card settings to use the dedicated GPU on a Windows computer.
        • Changing the JobQueue directory
        • ContextCapture has the ability to find corrupted images before running an AT
        • ContextCapture image navigation in MicroStation
        • ContextCapture surface constraints solution
        • ContextCapture Update 4 Dataset for Evaluation
        • ContextCapture: Combination of Survey Data and Photos
        • ContextCapture: Create Control Point
        • ContextCapture: Difference Between Tie Points and Control Points
        • Creating a Uniquemesh After Generating Initial Model in ContextCapture
        • Export & Import camera optical properties
        • Export logfile for technical support
        • Ground Control Point Specification
        • How does the type of processor in my computer affect the performance of ContextCapture?
        • How to add a custom/local height grid in ContextCapture - Part 2 (Advanced)
        • How to add a custom/local height grid in ContextCapture – Part 1 (Basic)
        • How to calibrate your camera using ContextCapture
        • How to Merge models from different data sources
        • How to scale a model without initial information
        • Import Image Collection and Orientation in ContextCapture
        • Importing Orientation Metadata
        • Interior Use of ContextCapture
        • Issues with FC6310R camera calibration
        • Managing partial updates on large ContextCapture projects
        • Merging 3MX Files
        • Merging Models
        • Multiple Camera Use In ContextCapture
        • My processing is failing due to insufficient memory despite having the tiling correctly adjusted
        • Ortho Parts vs Reconstruction Tiling
        • Reconstructed model displays with cracks after retouch process completed.
        • Smooth Surfaces in ContextCapture
        • Snapping to Referenced Reality Meshes
        • The block is affected by a spherical effect after Aerotriangulation
        • The model appears to be curved instead of being horizontal after AT
        • The model appears upside down after using a block-import file
        • The Model Is Upside Down After Aerotriagulation and No Block File Has Been Used
        • Tiling Tips
        • Unable to download ContextCapture trial software
        • Use of Camera Zoom in ContextCapture
        • Use of Videos in ContextCapture
        • +Working from home with ContextCapture
      • ContextCapture Frequently Asked Questions
      • +ContextCapture - Troubleshooting
      • +ContextCapture Insights
      • ContextCapture License Options
      • Describe the Different Modules of ContextCapture
      • What are the different editions of ContextCapture?
      • ContextCapture User Requirements
    • +Descartes and ContextCapture Editor(deprecated product)
    • +Orbit 3DM
    • +RealityModeling Cloud Services

     
     Questions about this article, topic, or product? Click here. 

    Tiling Tips

    ContextCapture Processing is CPU and GPU intensive. To prevent memory overflow in case of large datasets, it is recommended to apply tiling to the reconstruction.

    In ContextCapture, when creating a new reconstruction, a warning appears if the block contains a large quantity of data.

    In that case we recommend using tiling

    Tiling settings and recommendations

    The Tiling setup mode options are accessible from the “Spatial Framework” tab of your reconstruction.

     

    There are 3 types of tiling:

    • Regular planar grid
    • Regular volumetric grid
    • Adaptive tiling

    Optimal tile size

     There are two aspects to be considered regarding the tile size:

    • More tiles mean more jobs to execute
    • Bigger tiles mean a longer processing time per tile.

     The threshold of when it is no longer beneficial to increase the tile size depends on the global performance of your machine.

    For typical processing using a computer with a good CPU, good GPU and 64 Gb of RAM, the optimal maximum RAM target (depending on your tile size selection) is 25 Gb. 

    Regular planar and volumetric grid

    These types of tiling are defined by their size (in meters).

    • Regular planar grid is recommended for Mapping project. You can choose the size of the square defining the tile.
    • Regular volumetric grid can be used for assets that are captured from all angles. However, we would recommend using adaptive tiling in such cases. You can define the size of the cube that represents a tile.

    When selecting the size for one of these tiling modes, an “Expected maximum RAM usage” is displayed. Adjust the tile size so that it fits your hardware capabilities and/or the optimal tiling size.

     

    Adaptive tiling 

    Adaptive tiling will be defined based on the maximum RAM you want to allocate to your ContextCapture Processing.

    The tiling will be automatically generated so that no tile should require more RAM than the defined limit.

    This type of tiling results in an optimized size and distribution of the tiles. It is recommended for projects for which the resolution can dramatically change (with the addition of close-ups for example), or for project in full 3D such as buildings, towers, bridges, etc.

       

    Error message 

    If the tiling is not correctly set, or the RAM estimation is too big for your computer, the following error message may appear: “Failed: insufficient memory. You may solve this issue by subdividing the reconstruction into smaller tiles. Please review your reconstruction settings.”

    If you are getting this error, we recommend adding tiling or reducing the tile size as mentioned.

    • ContextCapture
    • Tile size
    • reconstruction
    • Tiling Mode
    • Spatial Framework
    • tiling
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    • Felix James Created by Bentley Colleague Felix James
    • When: Thu, Apr 9 2020 4:48 AM
    • Felix James Last revision by Bentley Colleague Felix James
    • When: Wed, Feb 3 2021 6:14 AM
    • Revisions: 3
    • Comments: 0
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