Runtime flow of a Tokkio avatar, with our parts in green: the provider gateway and TTS service feed our LLM and TTS classes inside the ACE Controller, which exchanges audio and animation with A2F-3D and drives the Animation Graph and the Unreal Renderer; the video goes out through VST to the browser.

NVIDIA Tokkioでカスタムアバターを動かす:ランタイム統合、日本語音声、本番運用

How we took the Character Creator 5 avatar from Part 1, packaged as a Linux renderer build, onto a Tokkio 5.0 stage: the renderer’s runtime contract, a replaced LLM and TTS behind the stock ACE Controller, Japanese speech fixes, and the GPU and video failures we met. Every checkpoint names the log or measurement behind it.