Biped Helper

4 votes
Date Updated: 
Author Name: 
Lorne Brooks

A companion interface for use alongside Biped. PDF guide below and accessible in the About rollout.


Features include:

- Supports multiple Bipeds in the same scene (picked via a dropdown list)

- Limited selection

- Hiding/Unhiding Biped

- Trajectory toggling

- Key all, key selected, delete all keys, and delete frame keys

- Setting TCB continuity values on a selection at the current slider time, or over the full time range (if keys exist)

- Adding or modifying limb Body/Object spaces (set Free or Planted keys)

- Toggle limb spaces

- Store all limb space settings and load them back again

- A posture for a Biped selection can be copied for later pasting

- Limbs can be quickly mirrored

- Spine can be quickly straightened or untwisted

- Load & save BIP animations using either the standard Biped dialogs, or via a quick method using a single overwritten file

- Pose Grabber; for saving and reloading a single pose

- Create a single semi-opaque snapshot of all skinned meshes stored in a specified scene layer for posing reference, based on the current slider time.


Key-baking features...

- Baking of head rotation to track an active assigned Look At Target (target will be removed after baking)

- Bip root baking using either direct linkage to an animated object, or to an object using Link Constraint to a target object

- Baking of limbs between first and last sliding keys

- Baking of a selected limb up to the next sliding key (from the slider time)

- Baking of a selected limb up to the last sliding key (from the slider time)

- PDF features guide in the About rollout





Version 2.5;

- Added ability to save and load BIP animation files via both dialog and quick modes.

Version 2.4;

- Added a new baking option for keying a Biped head in order to track an active Look At Target if assigned.

Version 2.3;
- Fixed a bug where paste posture would crash due to missing posture in the collection. It now filters the selection for Biped only parts during the copy posture phase, so that the collection is created properly for pasting.
- UI now remembers it's last location, even after Max restart.

Version 2.2;
- Added the ability to copy and paste (with optional opposite) a posture based on a selection of biped parts. The copied
  posture is saved as a file for later retrieval. You can also quickly select the copied biped parts if available.

Version 2.1;
- Added a new rollout called Quick Posture with options to mirror limbs, and straighten or untwist spine links.

Version 2.0;
- Added a new button "Key Selected Biped Parts". Adds keys to all selected biped parts at the current slider time.
- Added an alternative version of the script without button images. The 3dsmax 2017 UI does messy things to them.

Version 1.9;
- Bake Animation Keys now refreshes the UI in the case of the root being a <deleted scene node>.
- Trajectories Toggle now force switches to the motion panel before toggling the trajectories mode.
- Baking up to next and last modes now allows any part of a limb to be selected, not just the hands or feet.
- Added options to enable a single pose to be grabbed then applied without using the Biped collections panel. It saves the pose to a file for storage.
- Delete Frame Keys can now remove keys on all Biped parts at the current slider time, by holding Shift or Control when clicking the button.
- Added a select Both Hands & Feet button to the Selection/Display/Keys rollout.
- Updated PDF guide.

Version 1.8;
- Fixed global variable usage which caused the functions key all and delete all keys to not work (finally).
- Changed interface references of IK to be Body/Object space instead, to more accurately reflect their purpose.
- Added a Delete Frame Keys button, which deletes all keys on selected Biped parts based on the slider time.
- Added new button images, tooltips and rearranged some UI elements.
- Improved code for baking animation keys.
- Added a PDF guide and button link to the UI (in the About rollout).
- The previous dialog version of this tool is no longer supported. "Compact" reference removed.

Version 1.7;
- Converted the dialog interface into a more compact floater with collaspable rollouts (as an alternative install).
- Added functionality to enable user specified snapshots scene layer.

Version 1.6;
- Fixed global variable usage which caused the functions key all and delete all keys to not work.

Version 1.5;
- While using the Shift or Control method for setting TCB linear or smooth values across the time range, if the Escape key is pressed the operation will now stop.

Version 1.4;
- Contact email changed.

Version 1.3;
- When selecting from the dropdown list of multiple Bipeds, you can now hold Shift to also select the Biped root or hold Control to select the whole rig.

Version 1.2;
- Fixed the snapshot functionality. Do longer selects anything which means it works for frozen objects in Max 2015. Also, now handles multiple skin meshes in the
  'Mesh Character' layer. Only Skin meshes are snapshot.

Version 1.1;
- Added a dropdown list to enable selection of a Biped for the panel to operate on in the case of multiple Bipeds.

Version 1.0;
- First release.


Additional Info: 

The script can be found in category “LB Tools”.

The script creates its own macro to be placed as a toolbar icon or a keyboard shortcut added.


Drag the MZP file into your Max viewport.

Files will be copied to...




Version Requirement: 
3dsmax 2010-2021
lbtools_biped_helper.pdf322.62 KB
old_2-4_lbtools_biped_helper.mzp280.57 KB
lbtools_biped_helper.mzp285.36 KB


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jgk1981's picture

Big thank you for your effort

Big thank you for your effort :)

lbrooks's picture

Re: Is it possible to add save


I've added the ability to load and save BIP files using either dialogs or quick methods, which overwrites the same file. The usage is based one which biped you have selected from the dropdown list. Makes it easy to transfer animations from one biped to another.

Lorne Brooks

jgk1981's picture

Is it possible to add save

Is it possible to add save .bip file button instead of having to go to the biped menu to do that? Thank you

jgk1981's picture

Thank you for the quick reply

Thank you for the quick reply and adding my request to you neat tool. Keep up the good work :)

lbrooks's picture

Re: Works Great in max2021 Is it

I've added the ability to bake the head rotation for tracking a Look At Target, which will get removed afterwards.

Lorne Brooks

jgk1981's picture

Works Great in max2021 Is it

Works Great in max2021
Is it possible to add bake option for head too?

jgk1981's picture

Thanks for the quick update.

Thanks for the quick update. Works like a charm now :)

lbrooks's picture

Re: The Posture grabber tool


I've fixed the problem with the crash, which was due to non-Biped parts (or even no Biped parts) being selected when trying to copy a posture. This caused the pasting to not be able to find the copied posture in the collection and hence crash.

You should now be able to have non-Biped parts selected (in addition to Biped parts) when copying and the script will filter those out.

Thanks for the find.

Lorne Brooks

jgk1981's picture

The Posture grabber tool

The Posture grabber tool gives this error when I try to paste the pose on the selected parts. normal or opposite in max 2017

error.png 7.6 KB
lbrooks's picture

Re: Biped Helper not working


Unfortunately, Max version 2016 somehow broke the ability to load MZP files by dragging them directly into the viewport.

If you run the MZP from the Utilties panel (or top menu bar) as though it were a .ms file, the necessary files will be installed. However, the macro for the script won't have run yet, so you'll need to restart Max. The menu item should then be visible in the Customize User Interface > Toolbars > LB Tools category.

Lorne Brooks

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