RayTracer (RT)

A raytracing program built from scratch in C language, using MinilibX minimal graphics library, with pseudo-xml files as input, a dynamic render realtime viewer, and the ability to save bmp at your resolution of choice, and the ability to render on multiple devices for faster distributed rendering.

This project's main goal is learning raytracing from scratch, making a simple pseudo-xml parser expandable by design, and distributing computational tasks using C sockets to implement cluster rendering.

Features

• Simple shapes : sphere, cone, cylinder, ...
• Complex shapes : hyperboloid, torus, hollow cube, ...
• Shading : diffuse, specular, transparency, reflection, refraction
• Mappings : diffuse, specular, normal, transparency, reflection.
• Manipulations : plane cut, object limiting, texture cutting.
• Anti aliasing : 1x 2x 4x
• Smooth shadowing
• Parallel light
• 3d red-blue stereo rendering
• Mandelbulb fractal

Installation

OSX & Linux:

make -C ./libs/MinilibX ; make

Usage Example

Open the scene specified in the gui view

./rt scene_file.xml

Render the scene to the bmp file

./rt --no_window save_file.bmp scene_file.xml

The scene file

Example of a scene demo.xml

<scene ambiant="0.5" AA="4" resolution="720" light_samples="20"></scene>
<camera position="(10, 20, 80)" lookat="(0, 20, 0)" fov="40"></camera>
<light center="(0, 200, 20)"  radius="3" intensity="0.5" color="#FFFFFF"></light>
<light center="(0, 100, 100)"  radius="1" intensity="0.5" color="#FFFFFF"></light>
<cone length="30" center="(0, 10, 0)" color="#FF00FF" axis="(0, 1, 0)" radius="6"></cone>
<plane center="(0, -1, -10)" length="(60, 60)" U="(0, 1, 0)" V="(1, 0, 0)"  color="#D3D3D3"></plane>
 <plane center="(0, -1, 0)" length="(60, 60)"  U="(0, 0, 1)" V="(1, 0, 0)"  color="#D3D3D3"></plane>
<sphere center="(5, 10, 50)" color="#FF0000" radius="3"></sphere>
<ellipsoid center="(30, 3, -10)" axis="(10,5, 5)" translation="(3, 0, 0)" color="#000000" radius="4"></ellipsoid>

I invite you to discover more about the available tags and properties from the source code and the example scenes in rt-scenes

Result

The GUI mode

The GUI mode gives you the freedom of moving the camera, enabling and disabling some effects and saving the result to a bmp.

Some Renderings

Authors

MbarkErras

KernelOverseer

abenaiss