Warudo: The Facial Expressions Fix // 52 Blendshapes

Vtuber Tech
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The last two days I was dreading the possibility of needing to use Unity…it’s been broken for a while so I’ve been doing some work arounds. But I was determined to use my model for this Vtuber software, Warudo. But the issue was, she had no expressions.

Other than the Keybinds, I was like nah…we are gonna rig her face right!!! So, I have to say, the discord server was more questions than answers…so I said eff it. Let me SIMPLIFY this to the bottom line.

Yes, it cost me money.

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But…it’s an investment to be a vtuber.

Enough of my…thoughts.

📌 Core Resources & Links

  • Software Link: HANA_APP on BOOTH (Standalone version, ¥2,000)
  • Required Base Format: VRM 0.x / VRM 0.0 (Exported from VRoid Studio)

🛠️ Step 1: Exporting from VRoid Studio

Before using the app, you must export your avatar with specific settings so the software can read the face meshes properly.

  1. Open your model in VRoid Studio and click Export as VRM.
  2. Select VRM 0.0 as the export format (do not use VRM 1.0).
  3. In the optimization/reduction settings, look for the Reduce Polygons dropdown.
  4. CRITICAL: Uncheck the box that says “Delete Transparent Meshes” (透明メッシュを削除する). If this is checked, the face tracking mapping will break.
  5. Export and save your .vrm file.

💻 Step 2: Running HANA_APP (No Unity Required)

  1. Download and extract the HANA_APP folder you purchased from BOOTH.
  2. Launch the standalone .exe application.
  3. Import your raw VRM file into the app.
  4. The software will automatically generate and map all 52 ARKit / Perfect Sync expressions.
  5. Click Export to save your newly upgraded .vrm file.

🎮 Step 3: Loading and Configuring in Warudo

  1. Move your newly exported .vrm file into your Warudo characters folder (usually found under Warudo\Data\Characters or by clicking Open Data Folder inside the Warudo launcher).
  2. Launch Warudo and load your new avatar.
  3. Open your character properties or tracking blueprint.
  4. Set your facial tracking source to an ARKit tracking profile (such as iFacialMocap, VTube Studio tracking, or MediaPipe).
  5. Warudo will instantly map its tracking data to the 52 baked-in blendshapes created by HANA_APP.

Denzel Washington: Alright