Raytracer

Epitech Raytracer

Raytracer is a EPITECH 2nd year project. The purpose of our project is to render scenes using raytracing. In our project you can use .cfg file to configure scenes and create plugins.

You can generate one image or open a SFML Window and fast rerender a new screenshot by applying commands or editing the cfg file.

Organization

The .cfg file must be written like the example.cfg.

The plugins must be in the /plugins folder and generated as .so.

The images are saved in /screenshots folder.

Commands

You can use commands in the SFML Window:

• "help" to print the commands.
• "exit" to quit the program.
• "translate" {name} {x} {y} {z} to translate an object.
• "rotate" {name} {x} {y} {z} to rotate an object.
• "list" to print the objects.
• "resolution" {x} {y} to change the resolution.

How to use ?

Build with CMake. ( You must have SFML library. )

./raytracer | Launch with SFML the example.cfg file.

./raytracer [scene] | Launch with SFML the given .cfg file.

./raytracer -render [scene] | Generate in /screenshots the render of the .cfg file given without open SFML.

./raytracer -h or --help | Print informations.

Some examples

CFG configuration:

Camera

camera : 
{
  camera_position : 
  {
    x = 0.0;
    y = 5.0;
    z = -60.0;
  };
  fov : 
  {
    fov = 60.0;
  };
};

Primitives

primitives : 
 {

Sphere

  spheres = (
    {
      name = "my_sphere"; // name
      center :            // position
        {
          x = -30.0;
          y = 5.0;
          z = 0.0;
        };
      rotation :          // rotation
        {
          x = 0.0;
          y = 0.0;
          z = 0.0;
        };
      double = 5.0;       // radius
      color :             // color
        {
          r = 0;
          g = 250;
          b = 0;
        };
    }
    );

Plane

  planes = (
    {
      name = "plane1";  // name
      center :          // position
      {
        x = 0.0;
        y = 0.0;
        z = 0.0;
      };
      direction :       // direction
      {
        x = 1.0;
        y = 0.0;
        z = 0.0;
      };
      direction2 :      // direction2
      {
        x = 0.0;
        y = 0.0;
        z = 1.0;
      };
      rotation :        // rotation
      {
        x = 0.0;
        y = 0.0;
        z = 0.0;
      };
      color :           // color
      {
        r = 0;
        g = 0;
        b = 255;
      };
    } );

Cylinder

  cylinders = ( 
    {
      name = "cylinder";    // name
      center :              // position
      {
        x = -16.0;
        y = 12.0;
        z = 8.0;
      };
      direction :           // direction
      {
        x = 0.0;
        y = 0.0;
        z = 0.0;
      };
      rotation :            // rotation
      {
        x = 0.0;
        y = 1.0;
        z = 0.0;
      };
      double = 2.0;         // radius
      color :               // color
      {
        r = 0;
        g = 0;
        b = 255;
      };
    } );

Cone

  cones = ( 
    {
      name = "cone";    // name
      center :          // position
      {
        x = 0.0;
        y = 0.0;
        z = 0.0;
      };
      double = 0.8;     // half the opening angle
      direction :       // direction
      {
        x = 0.0;
        y = 0.0;
        z = 0.0;
      };
      rotation :        // rotation
      {
        x = 1.0;
        y = 1.0;
        z = 1.0;
      };
      color :           // color
      {
        r = 255;
        g = 0;
        b = 255;
      };
    } );

Triangle

  triangles = ( 
    {
      name = "triangle1";   // name
      center :              // position
      {
        x = 5.0;
        y = 6.0;
        z = 3.6;
      };
      rotation :            // rotation
      {
        x = 0.1;
        y = 0.1;
        z = 3.1;
      };
      direction :           // direction1
      {
        x = 6.0;
        y = 0.0;
        z = 0.0;
      };
      direction2 :          // direction2
      {
        x = 0.0;
        y = 6.0;
        z = 0.0;
      };
      color :               // color
      {
        r = 255;
        g = 64;
        b = 64;
      };
    } );

};

Lights

lights : 
 {

Ambient Light

  ambientlights = ( 
    {
      name = "my_light"; // name
      center :           // position
        {
          x = -17.0;
          y = 6.0;
          z = 2.0;
        };
      double = 0.6;      // physical size, 0.0 if invisible
      color :            // color of the physical light
        {
          r = 255;
          g = 255;
          b = 255;
        }
    });

Directional Light

  directionallights = ( 
    {
      name = "my_light"; // name
      rotation :         // direction of the light
        {
          x = 0.0;
          y = 1.0;
          z = 0.0;
        };
      double = 0.6;      // physical size, 0.0 if invisible
      color :            // color of the physical light
        {
          r = 255;
          g = 255;
          b = 255;
        }
    });

Spot Light

  spotlights = ( 
    {
      name = "my_light"; // name
      center :           // position
        {
          x = -17.0;
          y = 6.0;
          z = 2.0;
        };
      rotation :         // direction of the spot
        {
          x = 0.0;
          y = 1.0;
          z = 0.0;
        };
      double = 0.6;      // physical size, 0.0 if invisible
      double2 = 45.0;    // angle of the light
      color :            // color of the physical light
        {
          r = 255;
          g = 255;
          b = 255;
        }
    });

 };

Options

options : 
  {
    resolution : 
    {
      x = 1920;
      y = 1080;
    };
  };