Android 3D Model Viewer

A powerful, open-source Android application for viewing and inspecting 3D models. Built with a modular architecture and powered by a custom OpenGL ES 2.0/3.0 engine.

News (29/03/2026)

Version 5.0.0 *

• Engine improvements

  • OpenGL shaders upgraded to OpenGL 3. OpenGL 2 shaders is still supported (for older phones)
  • Engine Multiple Scene, Camera and Animation

• Internationalization (i18n)

  • Support for Spanish language. English being the default application language

• Brand New User Interface (UI)

  • UI completely rewritten / re-designed from scratch (assisted by AI)
  • UI is now based on Android Fragments
  • UI has now 1 Android Navigation Drawer (and 1 Android Toolbar)
  • UI has now 3 Dialogs to allow the selection of the Scene, Camera & Animation
  • UI has now 1 Preference screen to configure some of the Engine properties (skybox, language, etc)

• DAE & GLTF parsers completely rewritten / re-designed from scratch (assisted by AI)

• FBX: basic support added. The FBX parser is possible thanks to ufbx (https://github.com/ufbx/ufbx)

  • FBX Features: static models only with diffuse textures (no animation / rigging)

• Not yet published on Play Store!

• This release is possible thanks to Gemini (AI)

Key Features

• Multi-Format Support: Load OBJ, STL, DAE (Collada), GLTF, and FBX files.
• Advanced Rendering: Support for skeletal animation, normal mapping, and basic lighting.
• Modern UI: Built with Android Fragments, Navigation Component, and Material Design.
• VR Ready: Integrated Anaglyph and Stereoscopic (VR headset) rendering modes.
• Interactive Tools: Wireframe toggles, skeleton visualization, bounding boxes, and ray-cast selection.

Project Structure

This project consists of two main components:

1. App (:app): The Android application layer, managing UI, state, and user interaction.
2. Engine (:engine): A standalone 3D engine submodule.

Documentation

For detailed information, please refer to the following guides:

• Application Documentation: Details on UI architecture, reactive data flow, and app-specific features.
• Engine Documentation: Deep dive into the 3D engine API, Scene Graph, and rendering pipeline.
• Engine Integration: How to use the engine as a standalone library.

Getting Started

Installation

You can install the app via:

• Google Play: Download
• F-Droid: Download

Building from Source

# Clone with submodules
git clone --recursive https://github.com/the3deer/android-3D-model-viewer.git
cd android-3D-model-viewer

# Build and Install
./gradlew assembleDebug
adb install -r app/build/outputs/apk/debug/app-debug.apk

Community & Support

• Issues: Found a bug or have a suggestion? Open an issue.
• Contributing: Pull requests are welcome! Please follow the existing code style.

Credits & License

• The3Deer: MIT License
• JglTF (GLTF Parser): MIT License
• ufbx (FBX Parser): MIT License
• Earcut: ISC License

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Maintained by The3Deer. Assisted by Gemini AI.