MultiView

MultiView is a Fabric addon for Flashback. It takes multiple replays recorded by different players from the same Minecraft session and merges them into a single unified replay containing the union of all observed data.

The result behaves as if an omniscient observer with unlimited render distance had recorded the session:

• All chunks explored by at least one player are loaded
• All recording players are visible simultaneously
• All entities and events observed from any POV are present
• Free camera to explore freely, Spectate Player to follow a specific recorder

✨ Features

• Merge N replays via an integrated interface in Flashback (checkbox per replay, Merge button)
• Automatic tick-perfect time alignment (via ClientboundSetTimePacket)
• Chunks from all explored areas included in the merged replay
• All recording players visible at the same time
• Aggregated markers (Changed Dimension, etc.)
• Complete player list in Spectate
• Progress screen with bar and phase text
• Atomic rollback if a merge fails
• Available in French and English
• Does not redistribute any Flashback code (legally clean)

🎯 Target Audience

• Content creators: PvP events, SMP multiplayer, tournaments, machinima
• Server staff: multi-angle anti-cheat review
• Cinematographers: free camera in multiplayer scenes without data loss

📋 Usage

1. Each player records their POV using Flashback.
2. Collect the generated .zip files and place them in .minecraft/flashback/replays/.
3. Launch Minecraft with Flashback + MultiView installed.
4. Click the camera icon → Select Replay.
5. Check the boxes on the right of each replay (minimum 2).
6. Click Merge N Replays (top right).
7. Wait for the merge to complete.
8. The merged replay appears automatically → open it like a normal replay.

⚠️ Known Limitations

• Secondary POVs: appear as player entities. The camera follows the POV that started recording first (the “primary”).
• Merging 4+ POVs: works but may have minor visual imperfections.
• Multiple dimensions: the camera follows the primary’s dimension changes.

🔧 Requirements

• Minecraft 1.21.11
• Fabric Loader 0.19.2+
• Fabric API 0.141.3+1.21.11
• Flashback 0.39.4

📝 License

MIT — free to use, modify, and redistribute. Source code available on GitHub.

Flashback remains under its proprietary license by Moulberry. MultiView is a fully independent addon that does not redistribute any Flashback code.