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3D Rendering Engine (OpenGL)

A 3D rendering engine implemented in C++ using modern OpenGL and GLSL.
This project demonstrates a complete programmable rendering pipeline, including custom model loading, texture mapping, and multi-light shading.

Features

  • Custom OBJ/MTL parser (no external model-loading libraries)
  • Texture mapping with material support (map_Kd)
  • Multi-light additive shading (Directional, Point, Spot)
  • MVP (Model-View-Projection) transformation pipeline
  • Real-time rendering using VAO/VBO
  • Programmable shader pipeline (GLSL)

Rendering Pipeline

  1. Load OBJ/MTL files using a custom parser
  2. Normalize vertex geometry
  3. Upload vertex data to GPU using VAO/VBO
  4. Apply MVP matrix transformations
  5. Perform per-fragment lighting and texture sampling in GLSL

Technical Highlights

  • Implemented custom OBJ/MTL loader without third-party libraries
  • Designed full OpenGL rendering pipeline
  • Implemented multi-light Phong-style shading model in GLSL
  • Managed GPU buffers efficiently for real-time rendering
  • Applied MVP matrix transformations for 3D scene control

Controls

  • W / A / S / D – Control primary light position
  • Arrow Keys – Control secondary light

Tech Stack

  • C++
  • OpenGL
  • GLSL
  • GLEW
  • FreeGLUT
  • GLM

Build Instructions

This project was developed using Visual Studio 2022 (Windows).

Requirements:

  • OpenGL
  • GLEW
  • FreeGLUT
  • GLM

Open the project in Visual Studio and ensure all dependencies are correctly configured before building.