MU Online BMD Viewer

A modern, web-based 3D model viewer for .bmd files, the format used in the game MU Online. This application is built with TypeScript, Three.js, and Vite, providing a smooth and interactive experience for inspecting game models and their animations.

Features

• BMD Model Loading: Load .bmd files via a simple drag-and-drop interface.
• Texture Support: Apply various texture formats, including .jpg, .png, .tga, .ozj, and .ozt.
• Animation Playback: View all embedded animations with adjustable playback speed.
• External Animations: Load bone animations from a different .bmd file.
• GLB Export: Export models and their animations to the standard .glb format for use in other 3D software like Blender or Unity.
• Texture Export: Export all applied textures to .png format.
• Interactive Controls:
  • Orbit, pan, and zoom the camera.
  • Toggle wireframe and skeleton visibility.
  • Adjust model scale and scene brightness.
  • Auto-rotate the model.
  • Lock the animation on a specific frame.
• Diagnostics Panel: View real-time information about the loaded model, including mesh, bone, and animation counts, as well as FPS.

Getting Started

Prerequisites

• Node.js (v18 or later recommended)
• npm

Installation

1. Clone the repository or download the source code.

2. Open a terminal in the project directory.

3. Install the required dependencies:

   npm install

Running the Development Server

To run the application locally with hot-reloading, use the following command:

npm run dev

This will start a development server, and you can view the application in your browser at the provided URL (usually http://localhost:5173).

Building for Production

To create an optimized build for deployment, run:

npm run build

The production-ready files will be generated in the dist directory.

How to Use

1. Load a Model: Drag and drop a .bmd file onto the designated area on the left panel, or click to open the file selector.
2. Apply Textures: Once the model is loaded, the viewer will show which textures are required. Drag and drop the corresponding texture files onto the texture area.
3. Control Animations: Use the buttons to play different animations and the slider to control the speed.
4. Export: Use the export buttons to save the model as a .glb file or to save the textures as .png files.