A Simple C++ Rasterizer

Project Description

Author: Kairong Jiang

This project implements a resterizing renderer and implements flat, Gouraud and Phong shading models. User can select between the three at run time.

A custom scene file myscene.txt is provided to illustrated the functionality of the renderer. myscene.ppm is the result of rending the scene using Phong shading. (All resource files credited to Dr. Joshua Levine.)

User Instructions

System Requirements

• CMake 2.8 or newer
• C++ compiler with C++11 support (gcc 4.8.1 or newer, or Clang 3.3 or newer)
• SDL2 library

Build and Run

Build the program using cmake.

Run the program with the relative path to the scene txt file set as program argument.

e.g.

mkdir build

cd build

cmake ..

make

./simple_rasterizer ../myscene.txt

The program will show the image rendered by the renderer. By default, flat shading is used. User can perform the following keyboard operations:

• press f to switch to flat shading.
• press g to switch to Gouraud shading.
• press p to switch to Phong shading.
• press s to save the image.