WhittedTracer Class Reference

Class implementing a simple Whitted-style raytracer. More...

#include <whittedtracer.h>

Inherits Raytracer.

Inheritance diagram for WhittedTracer:

[legend]List of all members.

Public Member Functions
	WhittedTracer (Scene *scene, Image *img)
	Creates a Whitted raytracer.
virtual	~WhittedTracer ()
	Destructor.
void	computeImage ()
	Raytraces the scene by calling tracePixel() for each pixel in the output image.
Protected Member Functions
Color	tracePixel (int x, int y)
	Computes the color of the pixel at (x,y).
Color	trace (const Ray &ray, int depth)
	Computes the radiance returned by tracing the ray r.
Color	directIllumination (const Intersection &is)
	Computes the direct illumination at a point of intersection by adding the light contribution from each light source in the scene.
Ray	getShadowRay (const Intersection &is, PointLight *light) const
	Helper function that sets up a shadow ray from an intersection point to a point light source.
Ray	getReflectedRay (const Intersection &is) const
	Helper function that computes the reflected view direction and sets up a ray with the correct parameters.
Ray	getRefractedRay (const Intersection &is) const
	Helper function that computes the refracted direction and sets up a ray with the correct parameters.
Protected Attributes
Scene *	mScene
	Ptr to the scene.
Image *	mImage
	Ptr to the output image.
Camera *	mCamera
	Ptr to the camera used for rendering.

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Detailed Description

Class implementing a simple Whitted-style raytracer.

The tracePixel() function is called once for each pixel on the screen, and is responsible for computing the output color by tracing a ray through the scene. At each intersection, the contributions from direct illumination, reflection and refraction should be evaluated and summed up.

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The documentation for this class was generated from the following files:

• whittedtracer.h
• whittedtracer.cpp

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