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Implementations:

1. T.Whitted Ray-Tracer

   • Local color component (Blinn-Phong model illumination)
   • Multiple source lights
   • Hard Shadows
   • Global color component by implement the mirror reflection and refraction
   • Ray intersections with spheres, infinite planes and triangles

2. Stochastic sampling techniques

   • Anti-aliasing with the jittered method
   • Soft shadows using an area of light with a set of N light source points
     without antialiasing) and the random method (with antialiasing)
   • Depth of field effect where the lens is simulated by a random distribution of
     N samples on unit squares or unit disks

3. Acceleration structure

   • Uniform grid - using the Amanatides and Woo (1987) algorithm

4. Extra

   • Box-Ray intersection
   • Calculating mirror reflection attenuation and refraction attenuation using Fresnel Equations
   • New Scenes, that can be found in the P3D_Scenes folder with names:
     • new_scene1.p3f
     • new_scene2.p3f
     • new_scene3.p3f

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Compilation:

1. Use Visual Studio
2. Include il, freeglut and glew dependencies
3. Run with release mode
4. Type a specific scene from the P3D_Scenes folder

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Change parameters with drawModeEnabled:

1. Change drawModeEnabled to true
2. Run program
3. Type specific scene
4. After image is drawn, press image with mouse and type: a --> to switch antialiasing on/off d --> to switch depth of field on/off s --> to switch soft shadows on/off

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Check execution times:

1. Change drawModeEnabled to false
2. Run program
3. Type specific scene
4. Output can be checked in RT_Output.png