weak-perspective-projection
Weak Perspective Projection
Try this project here: https://fecty.github.io/weak-perspective-projection/bin/web/web.html
Project Overview
This project implements weak perspective projection, a computer graphics technique used for 3D to 2D transformation. It leverages the raylib graphics library to visualize and demonstrate weak perspective projection concepts.
What is Weak Perspective Projection?
Weak perspective projection is a simplified 3D-to-2D transformation technique that:
- Assumes all objects are at approximately the same distance from the camera
- Uses a uniform scaling factor for the entire scene (unlike full perspective projection which scales per-point)
- Provides computational efficiency while maintaining reasonable visual accuracy
- Is commonly used in robotics, medical imaging, and certain graphics applications
Project Structure
weak-perspective-projection/
├── include/ # Project header files
│ ├── raylib.h
│ ├── raymath.h
│ └── rlgl.h
├── lib/ # Compiled libraries
├── bin/ # Compiled executables
├── src/ # Project source code
│ └── main.cpp # Main application entry point
├── media/ # Project relevant media
├── utility/ # Project relevant utility functions
├── Makefile # Build configuration
├── README.md # This file
└── LICENSE # Project license
Dependencies
raylib 5.5.0+
This project depends on raylib - a simple and easy-to-use graphics library.
Building the Project
Prerequisites
- C/C++ compiler (GCC, Clang, MSVC)
- Make utility
- raylib library compiled or available
Build Instructions
Using Make (Recommended)
make
Manual Compilation
# Compile raylib (if not already built)
cd raylib/src
make PLATFORM=PLATFORM_DESKTOP
# Compile the project
cd weak-perspective-projection/
g++ src/main.cpp -o bin/main.out -std=c++17 -isystem include/ -Llib -lraylib -lGL -lm -lpthread -ldl -lrt -lX11 -Wall -Wextra -Wpedantic -Wshadow -Wconversion -Wsign-conversion -O0 -g
Running the Application
./bin/main
License
This project is licensed under the same terms as raylib.
raylib License
raylib is licensed under an unmodified zlib/libpng license - an OSI-certified, BSD-like license that allows static linking with closed source software.
License File: raylib/LICENSE