Back to BlogAug 03, 2025Integration2 min read

From Prompt to BVH, FBX, and ANIM -- A Practical Path for SL, UE5, Unity, and Roblox

Import Thirdrez animations without rework using clean loops, physics passes, and retarget presets tuned for every major platform.

Thirdrez export bundles move from idea to implementation without friction. Each download includes loop trimming, physics refinement, and retarget presets so your integration checklist stays short while quality stays high.

Quick-start checklist

  1. Download your animation from the Thirdrez marketplace or via the TRZ Kinetiq API.
  2. Review the README for loop timing, metadata, skeleton mappings, and MDM notes.
  3. Import into your tool of choice using the platform-specific instructions below.
  4. Capture the process in your wiki to keep new collaborators aligned.

Platform notes

Second Life (Bento)

  • Upload the BVH or ANIM, preview loop boundaries, and confirm the root height stays grounded.
  • Configure AO, HUD, or AVSitter priorities to avoid overrides.
  • Test in a live region with typical latency. Deep dive: Elevate Your Second Life Creations.

Unreal Engine 5

  • Retarget using the included UE5 Mannequin mapping.
  • Inspect root motion in Sequencer and keep AnimGraph transitions tight.
  • Align your QA checklist with Kinetiq Engine v2.1.3 so stability expectations stay consistent.

Unity Humanoid

  • Set the Avatar Definition to Humanoid and validate the bone map.
  • Gate state-machine transitions with normalised time and footfall events.
  • Use root transform controls to lock or release translation based on your controller architecture.

Roblox R15

  • Import the FBX or RBXM, confirm bone naming conventions, and keep keyframes efficient.
  • Profile animation playback alongside scripts to avoid runtime spikes.
  • Revisit Root Motion and Foot Locking to understand how drift prevention translates to Roblox's runtime.

Drift-free best practices

  • Edit loops so poses and velocities align at entry and exit points.
  • Lean on Thirdrez clips with stabilised foot locking to erase skating.
  • Allow the provided root normalisation to drive your hierarchy--double baking reintroduces drift almost every time.

Keep learning

Prompt, download, integrate--done.

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