harrymt/rasterizer

Rasterizer in c++ using SDL and GLM .

Rasterizer

Rasterizer for the University of Bristol Computer Graphics course (course work 2), links with the Ray Tracer.

See the report for a full overview.

How to Build

• Download a copy of GLM and place it inside of the root directory.
• Then use Makefile to build the program by running the following command in the directory.

make

• A rendered image of the Cornell Box should appear.

Latest Rendered Image

Features

Basic components of a rasteriser were implemented along with the following extensions:

• Optimisations
• Shadows
• Soft Shadows
• Interpolation Changes & Basic Clipping
• Anti-Aliasing - FXAA
• Parallelisation - GPU
• Frame buffer and Deferred Rendering
• Directional Lights - Light as a Camera

YouTube Videos

Four clips show the rasteriser in action:

• 50 shadow samples CPU vs GPU
• 2048 * 2048 CPU vs GPU
• 3 Soft Shadow Samples GPU
• 25 Soft Shadow Samples, 2048 * 2048 Shadow Map GPU

Setup project with Visual Studio 201X for Windows

• Get a GLM folder and the correct version of SDL, we are using SDL 1.2.5.
• Place glm folder inside of Source, for ease
• Extract SDL contents and place include and lib folders inside of a directory you can remember, e.g. I have mine at c:\vs_lib.
• Take SDL.dll and place it into your project Source folder also (we are gonna move it in a sec)
• Okay now we are ready to open VS (File -> New -> Create new project from Source -> Console app -> Select directory where you have cloned this repo)
• When its loaded, rightclick project name (not solution) and select properties

In Properties change these 3 sections (I have chosen for DEBUG: x64)

1. VC++ Directories
   • Include Directories, add c:\vs_lib\include
   • Library Directories, add c:\vs_lib\lib
2. C/C++
   • Additional Include Directories, add the location of your GLM folder, e.g. C:\Users\harrymt\Documents\GitHub\ray_tracer\Source\glm
3. Linked
   • Input, SDL.lib;SDLmain.lib;

• Based on this tutorial: (google lazyfoo SDL 1.2)
• For GLM: http://stackoverflow.com/questions/17905794/how-to-setup-the-glm-library-in-visual-studio-2012

Technologies

Uses the following technologies:

• SDL
• GLM