the process of creating b3dm and pnts files

Currently exploring the 3d tiles branch from Cesium. Managed to successfully build it on my local setup and now delving into how custom tiles work. Having some trouble with viewing b3dm and pnts files as my editor displays weird characters in them.

Any ideas on how to write these files according to my needs? How are these files usually generated? Is it possible to create a program for generating such files?

Answer №1

To generate b3dm files, utilize the tools provided in the "tools" section of the 3d-tiles-tools repository. This resource includes a converter for transforming glb files into b3dm and i3dm formats.

The presence of seemingly random characters in your text editor is due to b3dm being a compressed binary file format, rather than storing data as plain characters. Essentially, b3dm is an extension of the glTF format with additional header information. It's important to note that glTF exists in both binary and text versions, with b3dm utilizing the binary variation. For a detailed explanation of 3d Tiles formats, visit https://github.com/AnalyticalGraphicsInc/3d-tiles and refer to the documentation under "spec status." If you wish to view the actual coordinate values within these files, consider using a hex editor tool.

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