GitHub - thomas4f/mxbmrp3: MX Bikes HUD Plugin

A customizable, open-source HUD plugin for MX Bikes and GP Bikes displaying real-time race information and telemetry.

Example HUD layout. All elements are fully customizable.

Features

Live race standings, track map, and proximity radar with approach alerts
Lap timing with splits, personal bests, gap-to-PB visualization, and online lap records
Event log with timestamped race events and per-event icons
Track specific riders with custom colors and icons across all HUDs
First-person helmet overlay with telemetry-driven tilt and vibration
Controller rumble feedback with customizable effects
Discord Rich Presence integration showing current session and track
Riding stats tracking with per-lap, session, and all-time totals
FMX freestyle trick detection with scoring and chain combos
Telemetry visualization and compact info widgets
Web overlay for OBS/streaming with live standings, event log, and rider focus card
Drag-and-drop positioning with color themes and customizable hotkeys
Automatic profile switching for Practice, Qualify, Race, and Spectate sessions

Get Started

Download and install the plugin to begin customizing your HUD.

Quick Start

Install the plugin

Launch the game and load a track

Right-click drag to reposition elements

Press Tilde (~) (the key below Esc) or click the settings button in the top-right to customize visibility, scale, opacity, and more

See Installation for detailed setup instructions.

Installation

Requirements:

MX Bikes Beta 20 or newer / GP Bikes Beta 18 or newer

Automatic Installation

Download the latest installer mxbmrp3-Setup.exe
Run the installer - it will:
- Auto-detect your MX Bikes and GP Bikes installations (Steam or standalone)
- Let you choose which games to install for
- Install to the correct plugins folder for each game
- Handle upgrades automatically (preserves your settings)

Manual Installation

Download the latest release archive mxbmrp3.zip
Find your game's plugins folder:
- Steam: Right-click the game in your library → Manage → Browse local files → open plugins
- Standalone: Navigate to your game installation folder (e.g., C:\Games\MX Bikes\ or C:\Games\GP Bikes\) → open plugins

Extract the plugin files:

Copy mxbmrp3.dlo (MX Bikes) or mxbmrp3_gpb.dlo (GP Bikes) to the plugins/ folder
Copy the mxbmrp3_data/ folder to the plugins/ folder

Do NOT delete the existing game files (proxy64.dlo, proxy_udp64.dlo, xinput64.dli, or telemetry64.dlo for GP Bikes) - these are native game files, not old plugin versions.

Your directory should look like this after installation (files vary slightly by game):

[Game]/
│   mxbikes.exe / gpbikes.exe
│   ...
│
└───plugins/
    ├── mxbmrp3_data/        ← Add this folder (from release)
    │   ├── fonts/           ← Font files (.fnt)
    │   ├── textures/        ← Texture files (.tga)
    │   ├── icons/           ← Icon files (.tga)
    │   └── web/             ← Web overlay files (HTML/CSS/JS)
    ├── mxbmrp3.dlo          ← Add this (MX Bikes only)
    ├── mxbmrp3_gpb.dlo      ← Add this (GP Bikes only)
    ├── proxy_udp64.dlo      ← Keep (native game file)
    ├── proxy64.dlo          ← Keep (native game file)
    ├── xinput64.dli         ← Keep (native game file)
    └── telemetry64.dlo      ← Keep (GP Bikes only)

After Installation

Launch the game - the plugin loads automatically. Some elements are enabled by default and can be repositioned or configured via the settings menu. See Tips & Tricks for useful setup ideas. If nothing appears, see Troubleshooting.

Controls

Mouse

Move Mouse - Show cursor and settings button (auto-hides after inactivity)
Left Click - Interact with settings menu and HUD elements
Right Click & Drag - Reposition elements

Keyboard Shortcuts

Keyboard and controller hotkeys can be customized in Settings > Hotkeys. By default, only the settings menu hotkey is configured:

Tilde (~) - Toggle settings menu

Configuration

Use the settings menu (Tilde or the settings button in the top-right) to configure all HUDs and widgets. Hover over any setting to see its description - all controls have in-game tooltips explaining their function.

The settings menu provides:

General - Profiles, preferences, grid snapping
Appearance - Font categories and color theme customization
Hotkeys - Keyboard and controller bindings
Riders - Track specific riders with custom colors and icons
Rumble - Controller vibration feedback effects
Helmet - First-person helmet overlay configuration
Updates - Check for new versions and install updates in-game
Individual HUD tabs - Per-element visibility, scale, opacity, and options

All settings are automatically saved between sessions.

Profiles

Four separate profiles store complete HUD layout configurations:

Practice - Practice and warmup sessions
Qualify - Pre-qualify, qualify practice, and qualify sessions
Race - Race 1, Race 2, Straight Rhythm sessions
Spectate - Spectating or viewing replays

Auto-switch (disabled by default) automatically changes profiles based on session type.

HUDs & Widgets

All HUDs and widgets are configurable via the settings menu or directly in the .ini file.

HUDs

HUD	Description
Standings	Live race positions with gaps, status, and tracked rider indicators
Map	Top-down track map with rider positions (click to spectate)
Radar	Proximity radar with approach alerts and distance arrows
Timing	Split and lap times with gap comparisons
Gap Bar	Visual gap-to-PB bar with position markers
Pitboard	Pitboard-style lap information display
Lap Log	Historical lap times with PB indicators
Lap Consistency	Lap time consistency analysis with trend visualization
Ideal Lap	Best sector times and theoretical ideal lap
Records	Online lap records (CBR or MXB-Ranked) with personal bests (MX Bikes only)
FMX	Freestyle trick detection with scoring and chain combos
Telemetry	Throttle, brake, suspension graphs
Performance	FPS and plugin CPU usage
Rumble	Controller rumble effect visualization
Stats	Riding stats with columns for last lap, session, and all-time totals
Session	Session info (type, format, track, server, players, password)
Notices	Race status notices (wrong way, blue flag, PB alerts, last lap, finished)
Event Log	Timestamped feed of race events (session changes, fastest laps, penalties, finishes, pit activity)
Helmet	First-person helmet overlay with lean-linked tilt, suspension vibration, and visor tint

Widgets

Widget	Description
Lap	Current lap number
Position	Race position
Time	Session time/countdown
Speed	Current speed
Gear	Current gear
Clock	Real-time clock
Speedo	Analog speedometer
Tacho	Analog tachometer
Bars	Telemetry bars (throttle, brake, clutch, RPM, suspension, fuel)
Fuel	Fuel calculator with consumption tracking
Lean	Bike lean angle with arc gauge
Gamepad	Controller visualization

Web Overlay

The plugin includes a built-in HTTP server that streams live race data to a browser-based overlay, designed for use as an OBS Browser Source.

Setup

Enable the web server in Settings > General > Web Server (the port number is shown when active)
In OBS, add a Browser Source with URL http://localhost:8080 (default port - use the port shown in step 1 if changed)
Set width/height to match your stream resolution (e.g., 1920x1080)
The overlay auto-connects and displays a standings tower, event log, and rider focus card

Note: The overlay shell is cached by a service worker after the first successful load, so OBS can render the UI even if MX Bikes (and the plugin's HTTP server) isn't running yet. The very first load still requires the plugin server to be up at least once so the cache can be primed.

Settings Panel

The overlay includes a built-in settings panel for configuring display options without editing files:

In OBS, right-click the Browser Source and select Interact to get mouse access
Move your mouse to reveal a gear icon in the top-right corner, then click to open the panel
Configure compact times, tower size, event/chip filters, focus card, font size, and more
Drag the header bar to reposition the tower
All settings are saved to the browser's localStorage and persist across reloads

Colors and fonts sync automatically from your in-game settings.

What's Displayed

Logo slideshow - Sponsor/logo banner above the standings tower. Drop PNG files into logos/ (see Modding) and they cycle automatically. Toggleable with configurable interval in the settings panel.
Standings tower - Live positions with rider numbers, names, gaps, brand colors, and status chips (finished, pit, penalty, fastest lap, spectated)
Event log - Timestamped race events (same events and filters as the in-game Event Log HUD)
Rider focus card - Appears when spectating, showing the spectated rider with bike info, lap times, and gaps to neighbors

Customization

The overlay files are plain HTML, CSS, and JS. To customize them, place modified files in Documents\PiBoSo\[Game]\mxbmrp3\web\ - user files override the bundled versions on startup and are preserved across updates (see Modding).

style.css - Layout variables (spacing, sizing, tower width). Colors are synced from the game.
index.html - Overlay structure
app.js - The CONFIG block at the top defines defaults for all settings. These are overridden by the settings panel (stored in localStorage).

Tips & Tricks

Enable update notifications - The plugin doesn't check for updates by default. Go to Settings > Updates and set the update mode to "Notify" to get notified when a new version is available. You can also install updates directly from the settings menu.

Streaming setup - Enable the Session HUD (Settings > Session) to show the server name, track, and session type on screen for your viewers. The Pitboard and Gamepad widgets also work well on stream - both have fully customizable textures, and the Gamepad widget shows your live controller inputs. Pair with Discord Rich Presence (Settings > General) to show your current session and track in your Discord profile. For a broadcast-style overlay, see Web Overlay below.

Web overlay for OBS - The plugin includes a broadcast-style overlay for streaming. See Web Overlay for setup and configuration.

Power-user INI tweaks - Many additional options are available by editing the INI file directly. The file is well-commented and easy to work with. Each HUD section also supports per-element color overrides using ABGR hex values. For example:

[StandingsHud]
classicLayout=1         ; remove number plates and brand color strips

[SpeedWidget]
color_primary=0xff00ff00 ; green text (ABGR format)

Use the Color Override Picker to convert RGB colors to ABGR format. See Advanced Settings for how to edit and hot-reload the INI file.

Track records - The Records HUD fetches online lap records from CBR or MXB-Ranked. Enable "Auto-fetch" in Settings > Records to automatically load records when you enter a track. Records also work while spectating.

Click-to-spectate - Left-click on any rider on the Map HUD or Standings HUD to switch the spectate camera to that rider.

Remove the stock pitboard - Create an empty file called pitboard.cfg in [Game]\misc\hud\ (create the directories if needed). This removes the default 2D pitboard while keeping the small 3D pitboard in the game world. Delete the file to restore it.

Show/hide the rider stand icon - This is a game setting, not a plugin setting. Enable it under Simulation > "Show Rider Stand". To customize the icon or its position, extract rider.cfg and riderstand.tga from misc.pkz\misc\helpers\ to [Game]\misc\helpers\ and edit them there.

Advanced Settings

All plugin settings are stored in mxbmrp3_settings.ini in your user data folder.

In-game vs INI-only settings:

Most settings are configurable via the in-game settings menu
Some power-user options are only accessible by editing the INI file directly
INI-only settings are documented with inline comments

INI structure:

[HudName] - Base/default settings for a HUD
[HudName:Practice], [HudName:Qualify], [HudName:Race], [HudName:Spectate] - Profile-specific overrides (only values that differ from base)

Editing the INI file:

With the game closed (recommended):

Exit the game completely
Edit mxbmrp3_settings.ini
Launch the game to apply changes

Hot reload (for rapid iteration):

Disable Auto-Save in Settings > General
Edit the INI file while the game is running
Use the Reload Config hotkey to apply changes (bind it in Settings > Hotkeys)

If Auto-Save is enabled, changes made to the INI while the game is running will be overwritten.

Modding

Plugin data and custom assets are stored in Documents\PiBoSo\[Game]\mxbmrp3\.

Custom Assets

Add custom fonts, textures, and icons by placing them in the appropriate subfolder:

mxbmrp3/
├── fonts/       ← Custom .fnt files
├── textures/    ← Custom .tga textures
├── icons/       ← Custom .tga icons
└── web/
    └── logos/   ← Sponsor/logo PNGs for the web overlay slideshow

On game startup, the plugin syncs these files to the plugin's data directory (plugins/mxbmrp3_data/). User files with the same name as bundled assets will override them. This keeps your customizations separate from the plugin installation, so updates won't overwrite your files. Restart the game after adding or modifying assets.

Custom Textures

Textures use the naming convention {element_name}_{number}.tga (e.g., standings_hud_1.tga). They're auto-discovered and selectable via the Texture control in each HUD's settings.

Pitboard - Drop a custom .tga file (e.g., pitboard_hud_2.tga) into the textures\ subfolder. It will be auto-discovered and selectable in Settings > Pitboard > Texture.

Gamepad - The Gamepad widget ships with Xbox and PlayStation layouts. To customize them, copy gamepad_widget_1.tga (Xbox) or gamepad_widget_2.tga (PlayStation) from plugins\mxbmrp3_data\textures\ to the textures\ subfolder and edit them. Source design files (PSD) are available in assets/.

Helmet - The helmet overlay uses two textures: helmet_upper_1.tga (visor rim/top) and helmet_lower_1.tga (chin bar). Author at screen resolution with transparent visor openings and ~10% bleed on all sides (extra opaque border beyond the visible area) so tilt and vibration don't expose hard edges.

Custom Fonts

Fonts (.fnt files) are auto-discovered and assignable to categories (Title, Normal, Strong, Marker, Small) in Settings > Appearance. To generate fonts, use the fontgen utility provided by PiBoSo. See this forum post for details. An example configuration is provided in fontgen.cfg.

Custom Icons

Icons (.tga files) placed in the icons\ subfolder are discovered alphabetically and available for tracked rider customization in Settings > Riders.

Data Files

File	Description
`mxbmrp3_settings.ini`	All HUD settings (positions, visibility, options)
`mxbmrp3_tracked_riders.json`	Tracked riders with colors and icons
`mxbmrp3_rumble_profiles.json`	Per-bike rumble effect profiles
`mxbmrp3_stats.json`	Unified stats, personal bests, and odometer data

Troubleshooting

HUD Not Appearing

Check Installation requirements (MX Bikes Beta 20+ / GP Bikes Beta 18+)
Verify the DLO file and mxbmrp3_data/ are in the correct plugins/ folder. Games have two directories - the game installation (contains the game .exe) and user data (Documents\PiBoSo\[Game]\). Plugins go in the game installation, not Documents.
For GP Bikes, ensure you're using mxbmrp3_gpb.dlo, not mxbmrp3.dlo

Installer Detected the Wrong Game Directory

If you have multiple installations (e.g. standalone and Steam), the installer may pick the wrong one. Verify the plugin ended up in the plugins/ folder next to the game .exe you actually launch. If not, run the installer again and select the correct path, or install manually.

Text or Icons Not Appearing

Ensure mxbmrp3_data/ folder is in the plugins/ folder alongside the DLO file (see directory structure)
The mxbmrp3_data/ folder contains fonts, textures, and icons required for rendering
If you moved or renamed this folder, restore it from the release archive

Gamepad Widget Appears Cut Off

Go to Settings > Widgets tab and click "Reset Widgets" to correct the button positions.

Elements Appearing Twice (Ghost/Duplicate)

Check for duplicate MXBMRP3 DLO files - only one mxbmrp3.dlo (or mxbmrp3_gpb.dlo for GP Bikes) should exist in your plugins folder. Other plugins' DLO files are fine.

Elements Overlapping

Drag elements to reposition them
Use settings menu to adjust scale

Controller or Rumble Not Working

Verify the correct controller is selected in Settings > General
If you accidentally deleted xinput64.dli from the plugins folder, controller input may stop working
To restore: verify game files integrity (Steam) or reinstall the game

Web Overlay Not Working

If the settings show "Error" and "Port ... may be in use", another application is using the same port
Change the port in Settings > General > Web Server Port (e.g. to 8081)
Remember to update your OBS Browser Source URL to match the new port

Game Fails to Launch, Crashes, or Shows Black Screen

See the MX Bikes Troubleshooting Guide for general game issues (crashes, mods, plugins, RAM, controllers)
If the Windows Event Log shows mxbmrp3.dlo as the faulting module, please report it (see below)

For bug reports or feature requests, open an issue on GitHub or leave a comment on MXB-Mods.

Development

Built with C++17, Visual Studio 2022, PiBoSo Plugin API, and Claude Code.

CLAUDE.md - Quick-start guide for developers and AI assistants
ARCHITECTURE.md - Comprehensive technical documentation with diagrams

Building from Source

Requirements: Visual Studio 2022+, Windows SDK 10.0, Platform Toolset v143

Clone the repository:

git clone https://github.com/thomas4f/mxbmrp3.git
cd mxbmrp3

Open mxbmrp3.sln in Visual Studio 2022
Select configuration:
- MXB-Release / MXB-Debug for MX Bikes
- GPB-Release / GPB-Debug for GP Bikes
Build the solution (Ctrl+Shift+B)
Output:
- MX Bikes: build/MXB-Release/mxbmrp3.dlo
- GP Bikes: build/GPB-Release/mxbmrp3_gpb.dlo

Acknowledgments

Husk - Gamepad widget source design files
HornetMaX - MaxHUD, which served the MX Bikes community for over a decade

Thanks to everyone in the MX Bikes community who tested, reported bugs, and shared ideas.

Licensed under the MIT License. See THIRD_PARTY_LICENSES.md for bundled asset attributions.

Feedback and contributions are welcome.

Name		Name	Last commit message	Last commit date
Latest commit History 33 Commits
assets		assets
mxbmrp3		mxbmrp3
mxbmrp3_data		mxbmrp3_data
recorder_plugin		recorder_plugin
replay_tool		replay_tool
tools		tools
.gitattributes		.gitattributes
.gitignore		.gitignore
ARCHITECTURE.md		ARCHITECTURE.md
CLAUDE.md		CLAUDE.md
LICENSE		LICENSE
README.md		README.md
THIRD_PARTY_LICENSES.md		THIRD_PARTY_LICENSES.md
fontgen.cfg		fontgen.cfg
make_release.bat		make_release.bat
mxbmrp3-v1.18.jpg		mxbmrp3-v1.18.jpg
mxbmrp3.gif		mxbmrp3.gif
mxbmrp3.nsi		mxbmrp3.nsi
mxbmrp3.png		mxbmrp3.png
mxbmrp3.sln		mxbmrp3.sln

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