Tips for Opening Massive Point Clouds

Open Point Clouds via File > Open Point Cloud(s)

When opening a point cloud for the first time, NUBIGON converts your data into a high-performance file type called octree. This conversion happens only once and gives you a unique ability to handle massive point clouds with ease.

Generating an octree may take some time and temporarily require more than three times the disk space of your source files. Here are some important tips to accelerate this process and efficiently manage your disk space:

Keep Project on SSD

Solid-state drives are much faster than mechanical hard disks and they will definitely reduce the time to open point clouds.

Prioritize E57 File Format

Point clouds in E57 format take up less disk space than text files like PTS and XYZ.

The first stage of octree generation is completed significantly faster for E57 files compared to text file formats.

Keep Source Files Elsewhere

Your source files (E57, LAS, etc.) do not have to be in the same drive as your project. Keep your point cloud files in a different drive to save space.

Move Temp Folder

During this process, NUBIGON creates temporary files that are as big as the generated octree. Choosing a folder on a secondary drive for your temporary files will save space. If your computer does not have a secondary drive, you can also use an external disk.

Clean the Data a Little

Point clouds may have extreme outliers. Those outliers can significantly prolong octree generation and cause stability issues. Before opening point clouds in NUBIGON, apply bounding box clipping in your registration software.

Split Data

Advanced users can further accelerate this process by splitting their source files into meaningful parts.

Generating multiple octrees from smaller point cloud files is faster than generating an octree from a large file. When exporting point clouds from a third-party point cloud processing software, we recommend splitting large point clouds meaningfully into smaller files with minimal overlap (e.g. individual floors of a building). Be mindful that color smoothing only applies to individual octrees, so the overlap of two octrees may be visible.

Avoid Running Other Software Programs

NUBIGON reserves part of your available RAM when generating octrees. Running multiple programs at the same time reduces available RAM and thus prolongs octree generation.

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