Skip to main content

FAQ

How to Combine Facial and Motion Capture​

You can combine facial animation and movement animation using the Apply Additive animation node, as demonstrated in the image below.

You can find examples of combining expressions and movements in almost all of Dollars' Unreal samples. It is recommended to download these for reference. The download links can be found in the descriptions of the videos.

BluePrint Compile Errors​

This usually occurs because the directory structure was changed outside of Unreal Editor, causing object references to break. We recommend following the steps here to rectify the issue.

Motion Lag in Unreal Engine​

Ensure that Use Less CPU when in Background is not checked in the Editor Preferences.

And, when the Unreal Engine window is active, it may cause motion capture to drop frames. You can try:

  • Keeping the window of another program active

  • Limiting the Unreal Engine's frame rate

Motion Capture Does Not Work After Packaging in Unreal Engine 5.x​

You can try the following solutions,

  • Change the Unreal Editor interface to English.

  • If you are working on a MetaHuman project, remove the Post Process Animation Blueprint from the Animation Blueprint.s

Unable to Copy Ctrl Rig in Unreal Engine 5.1​

Copying the Ctrl Rig in Unreal Engine 5.1 can cause crashes. Currently, there is no direct solution. As a workaround,

You can import the skeletal model into a lower version of Unreal Engine, create the Ctrl Rig there, and then copy the Ctrl Rig asset into your 5.1 project.

How to Record Motion and Facial Animation​

Please refer to the following video, starting at around 4:43.

Capture Fails After Switching Animation Blueprints​

You can modify the animation blueprint by changing the Begin Play event to Initialize Animation event, as shown in the following image,

Please note that switching animation blueprints at runtime may cause the character to have no animation. It is recommended to switch between motion capture and animation sequences within the same animation blueprint by using state changes. You can refer to here.