Interactive OpenGL Graphics Engine

A lightweight, custom-built 3D engine developed in C++ and OpenGL 3.3. This project focuses on real-time object interaction, dynamic effects, and providing an accessible interface for scene manipulation.

Features

• 3D Raycasting: Implements screen-to-world space transformation (NDC -> Clip -> Eye -> World) to allow precision mouse interaction and object selection.
• Dynamic Particle System: A custom "burst" physics system for explosions with real-time lifecycle management and alpha-fade scaling.
• Custom Shader Pipeline: A modular Shader class handling vertex and fragment programs, supporting Phong-like lighting, texture mapping, and uniform management.
• Live UI Control: Fully integrated ImGui dashboard to tweak engine parameters (object count, spawn displacement) and light positions in real-time.

Tech Stack

Component	Library
Language	C++17
Graphics API	OpenGL 3.3 (Core Profile)
Windowing & Input	GLFW
OpenGL Loader	GLAD
Mathematics	GLM (OpenGL Mathematics)
GUI	Dear ImGui
Image Loading	stb_image

Controls & Interaction

• Left Click: Select and "Destroy" 3D objects in the scene.
• Engine UI:
  • Object Count: Set how many objects spawn.
  • Displacement: Adjust the randomness of object positions.
  • Regenerate: Clear and respawn the scene.
  • Light XYZ: Move the global light source.