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[Face, Fingers, Upper Body Tracking] VTubing in Warudo with Just One iPhone!

Transcribed Jun 15, 2026 Watch on YouTube ↗
Beginner 2 min read For: VTubers and streamers looking to use an iOS device for motion capture.
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AI Summary

This tutorial demonstrates how to use a single iPhone or iPad for Vtuber live streaming in Warudo using the SAI app, which provides full ARKit facial capture and upper body motion capture including fingers. The setup involves configuring Warudo and SAI to stream data via VMC protocol.

[0:00]
Overview

Use one iOS device with SAI for full ARKit facial capture and upper body motion capture including fingers, streaming to Unreal Engine and VMC-compatible software like Warudo.

[0:26]
Download SAI

Find a complete introduction to SAI and download it from the dollar's mocap website; link in description.

[0:38]
Initial Setup in Warudo

Open Warudo and SAI. In onboarding assistant, click get started, select a character, then configure motion capture by selecting VMC for both face and pose tracking.

[1:05]
Configure VMC Receiver

In Warudo sidebar, select VMC receiver to see listening port and IP address. In SAI settings, enter the IP and port.

[1:19]
Activate VMC Streaming

Return to SAI main screen and activate VMC streaming to control your character.

[1:30]
Fixed Lower Body Pose

To set a fixed lower body pose, select character in sidebar, setup motion capture, select VMC for face and motion capture, choose 'no' for full body tracking, remove legs from tracked parts, and select an idle animation.

By following these steps, you can achieve face, finger, and upper body tracking for VTubing in Warudo using just one iPhone or iPad.

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Tutorial Checklist

1 0:38 Open Warudo and SAI. In onboarding assistant, click get started, select a character.
2 0:48 Configure motion capture: select 'I know what to use', then select VMC for both face tracking and pose tracking.
3 1:05 In Warudo sidebar, select VMC receiver and note the listening port and IP address.
4 1:13 In SAI, tap gear button, enter the IP and port from Warudo.
5 1:19 Return to SAI main screen and activate VMC streaming.
6 1:30 To fix lower body pose: select character in sidebar, click setup motion capture, select VMC for face and motion capture, choose 'no' for full body tracking, remove legs from tracked parts, and select an idle animation.

Study Flashcards (4)

What app is used for facial and upper body motion capture on iOS?

easy Click to reveal answer

SAI

0:02

Which protocol does SAI use to stream data to Warudo?

medium Click to reveal answer

VMC (Virtual Motion Capture) protocol

0:52

What two types of tracking should be set to VMC in Warudo?

easy Click to reveal answer

Face tracking and pose tracking

0:52

How do you fix the lower body pose so motion capture doesn't affect the legs?

hard Click to reveal answer

Select 'no' for full body tracking, remove left leg and right leg from tracked body parts, and select an idle animation.

1:49

💡 Key Takeaways

🔧

Single iOS Device VTubing

Demonstrates that full VTubing with face, fingers, and upper body tracking is possible with just one iPhone or iPad.

0:02
🔧

VMC Receiver Configuration

Key step to connect SAI and Warudo via IP and port for real-time streaming.

1:05
🔧

Fixed Lower Body Pose Workaround

Provides a method to keep character's legs animated while upper body is motion-captured.

1:30

✂️ Creator Tools: Viral Hooks

AI-generated clip ideas for Shorts based on the transcript

VTubing with just one iPhone?

45s

The promise of full upper body and finger tracking with a single iPhone is surprising and highly shareable.

▶ Play Clip

How to set up VMC in Warudo

57s

Step-by-step setup guide is practical and solves a common pain point for aspiring VTubers.

▶ Play Clip

Fix your VTuber's legs with idle animation

50s

The trick to detach leg tracking and apply idle animations is a clever hack that viewers will want to try.

▶ Play Clip

[00:00] In this video, we'll show you how to use

[00:02] a single iPhone or iPad to do Vtuber

[00:04] live streaming in Werudo. We'll be using

[00:07] dollar SAI, which enables full ARKit

[00:09] facial capture and upper body motion

[00:11] capture, including fingers using just

[00:13] one iOS device. Seiya streams data in

[00:16] real time to Unreal Engine and VMC

[00:18] compatible Vtuber software like Wudo,

[00:21] Inzoi, and Anime. [music]

[00:26] You can find a more complete

[00:27] introduction to SA and download it from

[00:29] the dollar's mocap website. The link is

[00:32] in the video description.

[00:38] Here we have Wudo and SA already open.

[00:41] In the onboarding assistant, click get

[00:43] started. Under basic setup, select a

[00:46] character.

[00:48] When configuring motion capture, select

[00:50] I know what to use.

[00:52] Then select VMC for both face tracking

[00:55] and pose tracking.

[01:00] Click okay all the way through.

[01:05] Select VMC receiver in the sidebar where

[01:08] you can see [music] the listening port

[01:09] and IP address. Next, in Sia, tap the

[01:13] gear button in the bottom right corner

[01:14] to open the settings dialogue and enter

[01:16] the IP and port.

[01:19] Return to the Sia main screen and

[01:21] activate VMC streaming. You can now

[01:24] control your character through SA.

[01:30] If you want to set a fixed pose for your

[01:32] character's lower body, select the

[01:34] character in the sidebar.

[01:39] Click setup motion capture.

[01:42] Select VMC for face capture. Select VMC

[01:46] [music] for motion capture as well.

[01:49] Select no for the track full body

[01:51] option. Remove the left leg and right

[01:54] leg from the tracked body parts list.

[01:57] This way motion capture won't affect the

[01:59] legs. Then select an idle animation. You

[02:03] can see that the character's legs can

[02:05] now have [music] animations applied.

[02:10] Thank you for [music] watching. Please

[02:12] subscribe to our channel so you don't

[02:14] miss future tutorials and feature

[02:15] introductions.

[02:17] See you in the next video.

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