What is Rokoko?

  • Rokoko isΒ a motion capture (mocap) system that includes AI tools for capturing and animating motions.

    A free AI tool that allows users to:Β 

    • Upload a video of a person movingΒ 
    • Record themselves with a webcam or phoneΒ 
    • Automatically extract the motion file πŸ’‘ It is a great tool for capturing and animating motions for my NPC character in UE5

Experiments Process:

  1. Select a short video (under 15 seconds).
  2. Use Rokoko to auto-rig the animation.
  3. Export the rigged animation.
  4. Import and adjust the bone positions as needed.
  5. Add the animation to the scene –> Done!!!

Attempts:

  1. Upload a figure skater’s video (3D real-life photo)

    I notice it is losing the motion details.

    Rokoko - AI Auto Rig

    UE5 - Add the NPC Animation to the Scene

  2. Upload an animation (2D Character)

    • 2D animation character - Mickey Mouse
      I chose this character because it has abstract motions.

    • As expected, Rokoko cannot recognize the motion correctly, not even 20%.

Next steps:

  1. Find engaging short videos to incorporate into the NPC character interactions.
  2. Develop a method to attach animations to custominzed character model.

Conclusion:

⚠️ Tips for using Rokoko

  1. Keeping animations simple and similar to NPC movements will yield the best results.
  2. It only matches the UE5 Mannequin Skeleton

Credits:

This is the tutorial video, Rokoko Unreal 5 - Video Motion Capture (2 Minutes!!), I followed to get the animation from a small TikTok video to UE5.