Enhanced version of blender's bvh add-on with more settings supported. The bvh's rest pose should have the same handedness as the armature while could use a different up/forward definiton.

Related tags

Miscellaneous blender animation blender-addon blender-python blender-plugin bvh-files
Overview

Enhanced bvh add-on (importer/exporter) for blender

Author: [email protected]

github repo: https://github.com/walkoncross/blender_bvh_addon_enhanced

Refer to for more information: https://docs.blender.org/manual/en/2.92/addons/import_export/anim_bvh.html

Enhanced version of blender's bvh add-on with more settings supported.

The bvh's rest pose should have the same handedness as the armature while could use a different up/forward definiton

Enhanced bvh importer

New features:

  • Target: support to load .bvh data onto an existing armature
  • Translation: choose to load translation (a.k.a position) for all bones/only root bone/none from the MOTION part of .bvh file
  • Global Axis Conversion: whether to convert from bvh axis orientions into Blender's default axis orientions(Z-up/Y forward)
  • Skip frames: skip first #N frames inthe the MOTION part of .bvh file
  • Add rest pose: whether to add rest pose as the first frame in the animation curves.

bvh_importer_new_features

Enhanced bvh exporter

  • Forward and Up: customerize the output axis orientations
  • Add rest pose: whether to add rest pose as the first frame in the animation curves.

bvh_exporter_new_features

How to

Install

  1. download a release version .zip from: https://github.com/walkoncross/blender_bvh_addon_enhanced/raw/main/io_anim_bvh_enhanced.zip; (OR: git clone this repo and make a zip file (io_anim_bvh_enhanced.zip) from ./io_anim_bvh_enhanced);

  2. Blender -> Edit -> Perferences -> Add-ons -> Install, get the path of io_anim_bvh_enhanced.zip, install and enable the add-on

install_addon_1

install_addon_2

  1. After Installation:

enhanced_bvh_importer_menu

enhanced_bvh_exporter_menu

Load .bvh data onto an existing armature

  1. Select an existing armature object
  2. File -> Import -> Motion Capture (.bvh), enhanced
  3. Make settings
  4. Import BVH

load_onto_existing_armature

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Comments
  • Respect original bone name in BVH file

    Respect original bone name in BVH file

    Here, spaces in the bone name are replaced with an underscore:

    https://github.com/walkoncross/blender_bvh_addon_enhanced/blob/0cabc066ec8756375b58eb78ba798a8f798cf256/io_anim_bvh_enhanced/import_bvh_enhanced.py#L152

    However, this causes import errors on models with bone names that contain spaces (such as headphone 1) as this would build the bone map with headphone_1 as key thus throwing a KeyNotFound error next.

    Is there a reason to use a underscore as the concatenator instead of a space?

    opened by TigerHix 0
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