Replay Mod (Fabric & Forge) do Minecraft 1.12.2, 1.21.3

Mod Replay Documentation: The Mod Replay documentation. The most important features and their uses are explained in this tab.

Tutorial Video

A Basic Tutorial on how to use the Replay Mod. It is nevertheless recommended to read this documentation for in-depth information.

1. Installation

1.1 Installing the Replay Mod

Minecraft 1.14 and above

The ReplayMod for Minecraft 1.14 and above requires Fabric to be installed.

You can find Fabric and the installation instructions here.

After installing Fabric, simply put the downloaded ReplayMod .jar file into the /mods folder of your Minecraft directory.

Minecraft 1.12.2 and below

For Minecraft 1.12.2 and below it requires Minecraft Forge to be installed.

If you don't know how to install Forge, follow this tutorial.

After installing Forge, simply put the downloaded ReplayMod.jar file in the /mods folder of your Minecraft directory.

<mark>Note: The Replay Mod is entirely client side and can not be installed on the servers you play on.</mark>

1.2 Installing FFmpeg

To render your creations with Replay Mod you will need to have FFmpeg installed.

1.2.1 Windows

Download the latest FFmpeg release from fffmpeg release essentials.

Extract the downloaded .zip file into your .minecraft folder.

Historically the exact location inside the .minecraft folder was important, this is no longer the case. It is sufficient for the ffmpeg.exe to be anywhere inside your .minecraft folder.

Notes for alternative launchers

• Twitch launcher by default installs Minecraft instances in C:\Users\username\Twitch\Minecraft\Instances\instancename\
• GD Launcher by default installs Minecraft instances in C:\Users\username\AppData\Roaming\gdlauncher_next\instances\instancename\
• MultiMC by default installs Minecraft instances in C:\Program Files (x86)\MultiMC\instances\Instancename\.minecraft\

For these launchers, make sure FFmpeg exists inside the corresponding folder.

1.2.2 Mac OSX

On OSX, you can install FFmpeg with Homebrew using brew install ffmpeg.

Alternatively, you can download the latest static build from ffmpeg website and copy the FFmpeg executable to /usr/local/bin.

1.2.3 Linux

On Linux, you can install FFmpeg using your system's package manager, for example using apt install ffmpeg. If in doubt, consult the documentation of your distribution.

1.3 Settings

To access the Replay Mod Settings from the Main Menu click the "Replay Viewer" button and click the Settings button.

While playing, you can click the 'Mods' button in the Pause screen to reach Replay Mod Settings if you use Minecraft 1.12.2 and below, or have the mod Mod Menu installed.

When in a Replay, you can either bind a hotkey to the Replay Mod Settings in Minecraft's Control settings or use the hotkey GUI by clicking on the hamburger button in the lower left corner.

1.4 Accounts

In previous versions of ReplayMod we used accounts to deliver videos to the Replay Center. This has since been discontinued and with that, so have the accounts.

Instead of the forum, you can join our Discord server to get support and answers.

2. Recording

Recording Replays is the core feature of the Replay Mod.

Recording a Replay is really simple: If enabled in the Replay Settings, the Mod will automatically record all of your gaming sessions. You will be notified that the Recording started by a Chat Message. Chat Messages can be disabled in the Replay Settings. In the upper left corner, a Recording Indicator will be displayed unless disabled in the Replay Settings while you are recording.

While Recording, you can set Event Markers using the M key.

Upon exiting your Server/Singleplayer World, you might be asked to wait a couple of seconds until saving the Replay has been finished. Congratulations, your Replay is now accessible via the Replay Viewer!

The Recording Indicator which is displayed while recording

3. Replaying

To watch one of your Replays, open up the Replay Viewer from the Main Menu and select the desired Replay. Then, press the "Load" button.

In the Replay Viewer, you can also rename, delete and upload your Replay Files.

The Replay Viewer with several recorded Replays

3.1 Movement

3.1.1 Basic Controls

While in the Replay, you can freely move around using the movement keys (WASD, Space, Shift by default). You can move through block similar to Spectator Mode.

Using the Mouse Wheel, you can modify your flying speed. Scrolling up causes you to fly faster, while scrolling down slows you down.

If you prefer the camera to be controlled similar to vanilla Creative Mode, you can change that in the Replay Settings.

3.1.2 Camera Roll

While in a Replay, you can tilt the Camera.

By default, pressing J will tilt the screen clockwise, and pressing L will tilt the screen counterclockwise. Using K, you can reset the Camera Roll.

When holding the Ctrl key (Cmd key on Mac) while tilting, you can tilt slower and more precisely.

<mark>Hint: Most of the Keybindings mentioned in this documentation can be changed in Minecraft's Control Menu.</mark>

A Screenshot taken with a tilted camera

3.1.3 Spectating Entities

You can spectate any living entitiy (including players) while in a Replay. When looking at an entity, a crosshair will be visible.

By right-clicking, you will start spectating the entity. If you want to stop spectating the entity, use your Sneak Key (Shift).

3.2 Controlling Time

3.2.1 Replay Speed

In the upper left corner of you screen, there is a Play/Pause button (Shortcut: P), using which you can entirely pause the time of the Replay. All Entities, Particles and Block Updates will be frozen until you resume. You can fly through a paused Replay as usual.

Next to the Play/Pause Button, there is a Speed Slider. Using the Speed Slider, you can control how fast the time in your Replay passes. The minimum Speed value is 0.1 times the normal Minecraft Tick Speed, and the maximum Speed is 8 times as fast.

The Play/Pause button, Speed Slider and Replay Timeline hightlighted

3.2.2 Jumping in Time

To the right of the Speed Slider, there is the Replay Timeline. On the Replay Timeline, you see a yellow cursor indicating your current position in the Replay. By clicking somewhere on this Timeline, you will travel in time towards the specified point in time. Please note that it takes longer to do larger steps in time or to jump backwards in time (see also Quick Mode).

3.3 Camera Paths

3.3.1 Introduction

While in a Replay, you can create controlled Camera Movements using the Mods's Keyframe System. Those Camera Paths can be rendered to a video later (see Rendering).

The Replay Mod Keyframe System is similar to many Video Editing Software's Keyframe Systems. If you're new to Keyframe Systems, try reading this Wikipedia article.

3.3.2 Keyframe Timeline

All of the Keyframes which define a Camera Path are placed on the Keyframe Timeline. The Keyframe Timeline is below the Replay Timeline.

The Keyframe Timeline is 10 Minutes long, meaning a Camera Path can take up to 10 Minutes. You can zoom in and out on the Keyframe Timeline using the + and - buttons next to it.

Other than the Replay Timeline, the Keyframe Timeline's time values are not relative to the Replay's point of time, but refer to real time. If two Keyframes are 5 seconds apart, the Camera Path will take 5 seconds to interpolate between those Keyframes.

You can drag Keyframes on the Keyframe Timeline by left-clicking them, holding the mouse button and moving your mouse.

<mark>Hint: Made a mistake? You can use Ctrl+Z to undo your changes to the keyframe timeline. Changed you mind? Press Ctrl+Y (or Ctrl+Shift+Z) to redo them.</mark>

The Keyframe Timeline highlighted

3.3.3 Position Keyframes

The basic components of a Camera Path are Position Keyframes. A Position Keyframe stores a Camera Position (x, y, z, yaw, pitch, roll).

You can set a Position Keyframe using the "Add Position Keyframe" button. A Position Keyframe initially contains the state the Camera was in when creating the Keyframe.

On the Keyframe Timeline, a Position Keyframe will appear at the cursors's current position. This Keyframe is selected automatically, and the Position Keyframe Button will turn red. By clicking the Position Keyframe Button again, the selected Position Keyframe will be removed.

By adding multiple Position Keyframes on the Keyframe Timeline, you can create a simple Camera Path. Using the Path Preview, you can preview your Camera Path.

<mark>Hint: By right-clicking a Position Keyframe on the Keyframe Timeline, you can jump to this Keyframe's Position.</mark>

3.3.3.1 Path Interpolation

By default, Camera Paths follow a smooth curve through all of the set Position Keyframes. This curve is generated using Cubic Spline Interpolation. If you wish to disable smooth interpolation and want to make the Path follow straight lines instead, change the Path Interpolation Setting in the Replay Settings.

You can easily toggle between Linear and Cubic Interpolation using the O key.

A Camera Path using

Cubic InterpolationThe same Camera Path using Linear Interpolation

3.3.3.2 Path Preview

Using the H key, you can toggle a visual representation of your Camera Path. If enabled, you will see a Red Line in the World following the Camrea Path.

The Path Interpolation Setting is respected in this preview.

By moving the cursor on the Keyframe Timeline, you can see the Camera's current positon and view direction on the Path Preview.

A normal Path Preview

3.3.4 Time Keyframes

Time Keyframes can be used to precisely control time travelling during a Camera Path.

<mark>Every Time Keyframe represents a timestamp in the Replay itself.</mark>

You can set a Time Keyframe using the "Add Time Keyframe" button. A Time Keyframe initially contains the Replay's point in time when creating the Keyframe.

When playing the Camera Path, the Replay's time will interpolate between the set Time Keyframes in the Keyframes' intervals. Two Time Keyframes with the same Timestamp will freeze the Replay time for the duration of their interval.

<mark>Hint: By right-clicking a Time Keyframe on the Keyframe Timeline, you can jump to this Keyframe's Timestamp Value.</mark>