BVH Viewer

A fast, browser-based BVH viewer for animators, developers, and educators to inspect and debug motion capture data without specialized software.

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About This Tool

The BVH Viewer renders motion capture data by constructing a bone hierarchy from a BVH file and animating joint transforms per frame. It is designed for animators, researchers, and educators who need rapid validation of structure and motion without desktop software. The tool parses HIERARCHY and MOTION sections, builds a bone tree, and applies channel values to compute per-frame transforms in world space. Real-time playback, frame stepping, and root alignment support quick inspection of poses and motion trends. Advanced users benefit from axis-order normalization, unit scaling, and pose export for integration with pipelines. The viewer’s core value lies in its ability to confirm data integrity early, compare sequences, and teach hierarchical motion concepts with an immediately observable skeleton representation.

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How to Use

Provide inputs: upload a BVH file or provide a BVH URL.
Configure optional settings: adjust scale and playback rate if needed.
Run visualization: start playback or scrub frames to inspect motion.
Analyze outputs: review bone hierarchy, joint positions, and key poses; use exports for further processing.
Export data: save the current frame pose as JSON for downstream tools.

Frequently Asked Questions

Find Quick Answers

What data formats are supported?

The tool supports standard BVH files, including common variants of HIERARCHY and MOTION sections. Other formats such as FBX or CSV are not supported; if an input uses nonstandard channel names, those channels are ignored unless explicitly defined in the BVH.

How do I export pose data?

You can export the current frame pose as JSON, including joint names and their world-space translations and rotations. This enables downstream processing in animation pipelines or analyses, but it does not export video or playback media.

Can I view large BVH files efficiently?

Yes. The parser streams and chunks data where possible and renders the skeleton in real time. For extremely large files, you may adjust playback rate or selectively load subsets to maintain responsiveness.

Is axis and unit normalization supported?

The viewer detects common axis orders and can apply unit scaling to align meters with dataset-specific units. If axes or units differ, you can enable normalization to produce a consistent visualization across datasets.

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