Mountain Scene OpenGL Project

An immersive 3D scene built with Modern OpenGL and C++.

Experience a dynamic mountain environment with real-time lighting, weather effects, and interactive controls.

Features • Screenshots • Tech Stack • Controls

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⚠️ Important Notice

The models/ directory containing 3D assets is not included in this repository due to copyright restrictions.
As a result, this project is provided for demonstration and academic purposes only and is not intended to be rebuilt or redistributed as-is.

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Table of Contents

• Features
• Screenshots
• Tech Stack
• Controls
• Project Structure
• Acknowledgments

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Features

Dynamic Lighting & Skybox Day / Night / Dusk cycles with smooth transitions Phong lighting model (ambient, diffuse, specular) Point lights (lantern + fire flicker) Cubemap skybox for environmental realism	Weather & Atmosphere Distance-based volumetric fog Rain particle system with instancing Shadow mapping from directional light Atmospheric depth cues for large scenes
Animation & Interaction Animated floating lantern (scripted path) Dynamic fire light flicker Free-fly camera (WASD + mouse look) Global scene rotation	Environment Mountain terrain with grass and water Vegetation (trees, bushes, firs) House architecture (roof, porch, chimney) Static vehicle placement

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Screenshots

Main Scene

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Tech Stack

Core C++17 OpenGL 3.3+ (Core Profile) GLSL shaders

Libraries GLFW – window & input GLEW – OpenGL extensions GLM – math utilities stb_image – texture loading tiny_obj_loader – .obj parsing

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Controls

Key	Action
W, A, S, D	Move camera
Mouse	Look around
Q / E	Rotate scene
1 / 2 / 3	Day / Night / Dusk presets
4 / 5	Fog presets
G	Toggle fog
[ / ]	Adjust fog density
R	Toggle rain
L	Toggle lantern animation
F	Wireframe mode
ESC	Exit application

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Project Structure

mountain-scene-opengl/
├── Project/
│   ├── main.cpp                # Core application logic & main loop
│   ├── Window.h/cpp            # GLFW window wrapper
│   ├── Shader.hpp/cpp          # Shader loading & compilation
│   ├── Camera.hpp/cpp          # Camera class (Euler angles)
│   ├── Mesh.hpp/cpp            # Mesh data structure
│   ├── Model3D.hpp/cpp         # Model loading & rendering
│   ├── SkyBox.hpp/cpp          # Skybox implementation
│   ├── RainGenerator.hpp/cpp   # Rain particle system
│   └── tiny_obj_loader.h       # Model loader library
├── shaders/                    # GLSL Shader files (.vert, .frag)
├── screenshots/                # Project screenshots
├── models/                     # 3D Assets (Excluded from Git)
├── Project.sln                 # Visual Studio Solution
└── README.md                   # Documentation

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Acknowledgments

• OpenGL community & documentation
• LearnOpenGL.com

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