Parallel Raytracer Assignment

Code To Investigate

RayTraceContext

public interface RayTraceContext {
	int width();

	int height();

	void mark(int xMin, int yMin, int xMaxExclusive, int yMaxExclusive);

	void markAndRender(int xMin, int yMin, int xMaxExclusive, int yMaxExclusive);
}

Scheduler

public interface Scheduler {
	void void_fork(Runnable runnable);
}

Code To Implement

SplitFourWayRayTracer

class:	SplitFourWayRayTracer.java
methods:	rayTrace
package:	raytrace.exercise
source folder:	student/src/main/java

rayTrace

method: public void rayTrace(RayTraceContext context, Scheduler scheduler) (parallel implementation required)

LoopRayTracer

class:	LoopRayTracer.java
methods:	constructor sectionsCreator rayTrace
package:	raytrace.exercise
source folder:	student/src/main/java

constructor

method: public LoopRayTracer(Function<RayTraceContext, List<Section>> sectionsCreator) (sequential implementation only)

Hang onto the sectionsCreator in an instance variable. You will need it. Refer to Function<T, R> Interface documentation if you are unfamiliar with Function.

thresholdPredicate

method: Function<RayTraceContext, List<Section>> sectionsCreator() (sequential implementation only)

Return the sectionsCreator you stored in an instance variable.

rayTrace

method: public void rayTrace(RayTraceContext context, Scheduler scheduler) (parallel implementation required)

DivideAndConquerRayTracer

class:	DivideAndConquerRayTracer.java
methods:	constructor thresholdPredicate rayTraceKernel
package:	raytrace.exercise
source folder:	student/src/main/java

constructor

method: public DivideAndConquerRayTracer(BiPredicate<Integer, Integer> thresholdPredicate) (sequential implementation only)

Hang onto the thresholdPredicate in an instance variable. You will need it.

thresholdPredicate

method: public BiPredicate<Integer, Integer> thresholdPredicate() (sequential implementation only)

Return the thresholdPredicate you stored in an instance variable.

rayTrace

method: public void rayTrace(RayTraceContext context, Scheduler scheduler) (parallel implementation required)

Checking Your Solution

Visualization

class:	RayTracerViz.java	VIZ
package:	raytrace.viz
source folder:	student/src/main/java

Correctness

class:	_SequentialRayTracerTestSuite.java
package:	raytrace.group
source folder:	testing/src/test/java