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.

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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)

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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

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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

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Controls

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

Tech Stack

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

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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.