If you experience a slow C3D opening (more than 10 seconds), even for a huge C3D file. You may be in one of two cases. First, mak sure you are using EZC3D compiled with optimizations (RelWithDebInfo or Release). Indeed, the way C3D files are formated implies back and fourth memory allocations between points and analogs. Serial number trade-in offer. For industry collections or qualifying individual products, customers can save up to 20% on the Autodesk Suggested Retail Price (SRP) for eligible 3-year term subscriptions with single-user access, or up to 15% on the SRP for eligible 1-year term subscriptions with single-user access when they trade-in qualifying associated seats of 1998- 2021 perpetual licenses.
Developer | ADTech |
Popularity | |
Category | Data Files |
Format | Binary |
A C3D file is a data file saved in the Coordinate 3D (C3D) format, which contains biomechanical information. It stores three-dimensional motion capture data in a compact binary structure and is a standard format for biomechanics data storage.
Coordinate 3D was designed for flexible and extensible data storage. It allows users to store and modify custom parameters in addition to the standard biomechanics parameters and raw data.
The C3D format was originally developed by Dr. Andrew Dainis at ADTech in the early 1980s and remains the standard for 3D biomechanical gait and motion data. It enables 3D data to be shared across clinical, research, and movie industries. Full details of the format are available on the C3D.org website.
Developer | C3D Labs |
Popularity | |
Category | 3D Image Files |
Format | Binary |
A C3D file is a 3D model saved in the C3D Labs binary format, which is a CAD format used in architectural and machine building industries. It contains geometric object data for a 3D model, such as curves, points, triangulation, assemblies, and bodies. C3D files are the primary files used to exchange 3D models using C3D Labs software.
If you receive a C3D file, you can open it with C3D Viewer, which is available to download for free. The program enables you to zoom in and out, pan, rotate, and orbit the model. You can save different views of the model in the JPEG, PNG, BMP, and TIFF formats, which allows you to share your model in a more widely supported format. The program also can be used to view other formats, such as .STEP, .IGES, and .STL.
NOTE: C3D Labs was formed in 2012 out of ASCON (one of the first Russian CAD developers founded in 1989) after years of developing the C3D kernel. They are located in the Skolkovo Innovation center outside of Moscow.
This web site provides definitive information about the C3D file format for programmers, manufacturers and end-users. The C3D format is a public domain file format that has been used in Biomechanics, Animation and Gait Analysis laboratories to record synchronized 3D and analog data since the mid 1980's. It is supported by all major 3D Motion Capture System manufacturers, and companies in the Biomechanics, Motion Capture and Animation Industries. C3D files are a standard that contain all the information needed to read, display, and analyze 3D motion data with additional analog data from force plates, electromyography, accelerometers, and other sensors.
Unlike various other 3D formats (Biovision BVH files, OpenSim .TRC and .MOT files etc.,) the .C3D format is a standard that does not change each time a manufacturer releases a new product so data stored in the C3D format will remain readable for a long time. Sample files are available on this web site that were created in the mid 1990's and can be opened and processed by any C3D application.