Module raytracer

Package de.grogra.ray2.tracing

Interface RayProcessor

All Known Implementing Classes:

BiDirectionalProcessor, DefaultRayProcessor, LineTracer, MetropolisProcessor, PathTracer, PhotonMapRayProcessor, Radiosity, RayProcessorBase

public interface RayProcessor

An implementation of this interface encapsulates the raytracing algorithm for a single ray. Such an algorithm needs information about the whole scene, this information is obtained through the PixelwiseRenderer which is passed to the initialize method.

Author:

Michael Tauer, Ole Kniemeyer

Method Summary

Modifier and Type	Method	Description
void	appendStatistics(StringBuffer stats)	Appends some statistics information about the ray processing to stats.
RayProcessor	dup(Scene scene)	Returns a clone of this RayProcessor.
void	getColorFromRay(Line ray, Spectrum resp, Color4f color, Random random)	The main method of a ray processor.
void	initialize(PixelwiseRenderer renderer, Scene scene)	With this method the processor is initialized with the scene and other information of a PixelwiseRenderer.
void	initializeBeforeTracing(Random random)	With this method the processor is initialized with the Randomizer actually before starting the ray tracing.

Method Details

dup

RayProcessor dup(Scene scene)

Returns a clone of this RayProcessor. All constant variables are copied shallowly, state variables are newly created and copied where necessary.

Parameters:

scene - duplicate of scene

Returns:

clone of this ray processor

initialize

void initialize(PixelwiseRenderer renderer,
 Scene scene)

With this method the processor is initialized with the scene and other information of a PixelwiseRenderer.

Parameters:

renderer - the renderer which provides the needed information

scene - the scene which is rendered

initializeBeforeTracing

void initializeBeforeTracing(Random random)

With this method the processor is initialized with the Randomizer actually before starting the ray tracing.

Parameters:

random - pseudorandom generator

getColorFromRay

void getColorFromRay(Line ray,
 Spectrum resp,
 Color4f color,
 Random random)

The main method of a ray processor. This method computes a color for the specified ray. color.w contains the alpha value for the ray, the other components are premultiplied with this alpha value.

Parameters:

ray - input - calculate for this ray

resp - responsivity of camera

color - output - the calculated color

random - pseudorandom generator

appendStatistics

void appendStatistics(StringBuffer stats)

Appends some statistics information about the ray processing to stats. This method will be invoked after the whole rendering process has completed.

Parameters:

stats - buffer for statistics information