Convert BVH to CSM

Understanding BVH and CSM file formats

BVH (Biovision Hierarchy) is a widely used file format for storing motion capture data. It contains both the skeleton hierarchy and the motion data, making it popular in animation, game development, and 3D character rigging.

CSM (Character Studio Motion) is a file format used by Autodesk 3ds Max's Character Studio plugin. It stores motion data compatible with the Biped system, allowing for easy retargeting and animation within 3ds Max.

Why convert BVH to CSM?

Converting BVH to CSM is essential when you want to use motion capture data from BVH sources in 3ds Max's Biped system. This enables animators to leverage high-quality mocap data in their 3ds Max projects.

How to convert BVH to CSM

There is no direct, standalone converter for BVH to CSM. The most reliable method involves using Autodesk 3ds Max with the Character Studio plugin. Here’s how you can perform the conversion:

1. Open 3ds Max and create a Biped character using the Character Studio tools.
2. Go to Motion panel and select the Biped.
3. Use Motion Capture utilities to import the BVH file: Motion → Motion Capture → Load Motion Capture File.
4. Map the BVH skeleton to the Biped structure as needed.
5. Once the motion is applied, export the animation as a CSM file: File → Export → Save Motion File (*.csm).

Best software for BVH to CSM conversion

The best and most accurate way to convert BVH to CSM is by using Autodesk 3ds Max with the Character Studio plugin. This ensures proper mapping and compatibility with the Biped system.

Tips for successful conversion

• Ensure the BVH file is clean and well-structured for easier mapping.
• Check the scale and orientation of the imported motion to match your Biped character.
• Use 3ds Max’s retargeting tools to fine-tune the animation after import.