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Mixamo Animation Retargeting

Hi!

As anticipated, today we published the new official Documentation for the Mixamo Animation Retargeting plugin.

We tried to collect the most useful information, including the most often asked questions. But let us know if you need more! :slight_smile:

You’ll find several information:

Let us know if you find this sort of documentation useful!

Happy retargeting :wink:

Here the new Video Trailer of the Mixamo Animation Retargeting plugin for Unreal Engine:

Hope you’ll enjoy it!

Hi everyone! As anticipated, here you can find the new Video Tutorial for the Mixamo Animation Retargeting plugin:

We hope you’ll enjoy the new tutorial!

Mixamo Animation Retargeting plugin is participating to the Unreal Engine Massive Marketplace Sale and is 30% OFF right now. If interested, get it before the end of event.

Hi! Here the new video tutorial on how to create standard Root Motion animations from Mixamo animations. The process is very simply (few clicks!) and requires both the “Normal” and the “In-Place” versions of the Mixamo animation you want to convert.

Hi! As we continue creating new versions of the old videos, here is the new “Animation Tuning” video.

When using the UE4 Retargeting System is common to have some defects in the end results. This is caused by the different morphologies of the involved skeletal meshes, that are not taken into account by the UE4 Retargeting System.

In the video is explained the general problem, and two possible solutions are provided. Both of them are very easy and can be done in few minutes directly inside the UE Editor.

Assertion failed: (Index >= 0) & (Index < ArrayNum) [File:D:\RocketSync\4.26.0-14830424+++UE4+Release-4.26\Working\Engine\Source\Runtime\Core\Public\Containers/Array.h] [Line: 674] Array index out of bounds: 1 from an array of size 1

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UE4Editor_MixamoAnimationRetargeting!DispatchCheckVerify<void,<lambda_ade521cbc3d21ca734539bf2281a8f32> >() [D:\RocketSync\4.26.0-14830424+++UE4+Release-4.26\Working\Engine\Source\Runtime\Core\Public\Misc\AssertionMacros.h:165]
UE4Editor_MixamoAnimationRetargeting!FMixamoAnimationRootMotionSolver::ExecuteExtraction() [D:\Build++Portal+Promotion\Sync\LocalBuilds\PluginTemp\HostProject\Plugins\MixamoAnimationRetargeting\Source\MixamoAnimationRetargeting\Private\MixamoAnimationRootMotionSolver.cpp:127]
UE4Editor_MixamoAnimationRetargeting!FMixamoAnimationRootMotionSolver::LaunchProcedureFlow() [D:\Build++Portal+Promotion\Sync\LocalBuilds\PluginTemp\HostProject\Plugins\MixamoAnimationRetargeting\Source\MixamoAnimationRetargeting\Private\MixamoAnimationRootMotionSolver.cpp:58]
UE4Editor_MixamoAnimationRetargeting!FMixamoToolkitEditorIntegration::ExecuteAction_ExtractRootMotion() [D:\Build++Portal+Promotion\Sync\LocalBuilds\PluginTemp\HostProject\Plugins\MixamoAnimationRetargeting\Source\MixamoAnimationRetargeting\Private\MixamoToolkitEditorIntegration.cpp:117]
UE4Editor_MixamoAnimationRetargeting!TBaseSPMethodDelegateInstance<1,FMixamoToolkitEditorIntegration const ,0,void __cdecl(void),FDefaultDelegateUserPolicy>::ExecuteIfSafe() [D:\RocketSync\4.26.0-14830424+++UE4+Release-4.26\Working\Engine\Source\Runtime\Core\Public\Delegates\DelegateInstancesImpl.h:307]
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Hey, loving the plugin! I’m really confused as to why I keep getting this crash when trying to generate root motion animations. The skeleton has not been edited at all from the default mixamo rig apart from the root bone being added by the plugin. Any thoughts on this?

Hi!

Thanks for enjoying the plugin! :slight_smile:

About the error, looking at the plugin source code, the issue is that your “in-place” Mixamo animation has fewer key-frames than the corresponding “normal” Mixamo animation. Correct animation pairs are expected to have the exact same number of key-frames.

As a first step, just to be sure to not have skipped some important step, please review the official documentation: https://www.unamedia.com/ue4-mixamo-plugin/docs/mixamo-root-motion-animations/. And give also a quick look also to the video tutorial:

If the problem persists, please share the original FBX files of the Mixamo character and the two Mixamo animations: send a download link at support@unamedia.com . So we can investigate precisely the issue.