Package cz.fidentis.analyst.opencl.services.raycasting.impl

Class BeamIntersectionVisitorImpl

java.lang.Object

cz.fidentis.analyst.opencl.services.raycasting.impl.BeamIntersectionVisitorImpl

All Implemented Interfaces:

CLResources, BeamIntersectionVisitor

public class BeamIntersectionVisitorImpl
extends Object
implements BeamIntersectionVisitor

Visitor providing methods to ray cast OctreeOpenCL in parallel utilizing GPU. Visits octree and calculates closest intersections. Can be reused multiple times.

Constructor Summary

Constructors

Constructor	Description
BeamIntersectionVisitorImpl(com.jogamp.opencl.CLContext context, MeshTriangle.Smoothing smoothing, boolean filter)	Constructor compiles OpenCL source-code needed to calculate ray intersections

Method Summary

Modifier and Type	Method	Description
void	calculateClosestIntersections()	Dispatches asynchronous kernel to calculate the closest ray intersections with OctreeOpenCL.
Set<RayIntersection>	readResults()	Checks if the results are ready and then copies them from GPU
Set<MeshPoint>	readResultsAsMeshPoints()	Waits for results and then copies them from GPU as MeshPoints Ignores calculated distances to speed-up reading
void	release()	Explicitly releases GPU resources held by this object
void	setBeam(WriteBufferGPU<javax.vecmath.Point3d> rayOriginsBuffer, WriteBufferGPU<javax.vecmath.Vector3d> rayDirectionsBuffer)	Stores Ray components in visitor
void	visitOctree(OctreeOpenCL octree)	Visits OpenCl Octree

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Details

BeamIntersectionVisitorImpl

public BeamIntersectionVisitorImpl(com.jogamp.opencl.CLContext context,
 MeshTriangle.Smoothing smoothing,
 boolean filter)

Constructor compiles OpenCL source-code needed to calculate ray intersections

Parameters:

smoothing - Smoothing strategy

filter - If true, then only triangles with the same orientation are taken into account

Method Details

visitOctree

public void visitOctree(OctreeOpenCL octree)

Description copied from interface: BeamIntersectionVisitor

Visits OpenCl Octree

Specified by:

visitOctree in interface BeamIntersectionVisitor

Parameters:

octree - instance of OctreeOpenCL

setBeam

public void setBeam(WriteBufferGPU<javax.vecmath.Point3d> rayOriginsBuffer,
 WriteBufferGPU<javax.vecmath.Vector3d> rayDirectionsBuffer)

Description copied from interface: BeamIntersectionVisitor

Stores Ray components in visitor

Specified by:

setBeam in interface BeamIntersectionVisitor

Parameters:

rayOriginsBuffer - origin points of ray

rayDirectionsBuffer - common direction of all rays

calculateClosestIntersections

public void calculateClosestIntersections()

Description copied from interface: BeamIntersectionVisitor

Dispatches asynchronous kernel to calculate the closest ray intersections with OctreeOpenCL. The method does not wait for it to finish.

Specified by:

calculateClosestIntersections in interface BeamIntersectionVisitor

readResultsAsMeshPoints

public Set<MeshPoint> readResultsAsMeshPoints()

Description copied from interface: BeamIntersectionVisitor

Waits for results and then copies them from GPU as MeshPoints Ignores calculated distances to speed-up reading

Specified by:

readResultsAsMeshPoints in interface BeamIntersectionVisitor

Returns:

Set of closest MeshPoint

readResults

public Set<RayIntersection> readResults()

Description copied from interface: BeamIntersectionVisitor

Checks if the results are ready and then copies them from GPU

Specified by:

readResults in interface BeamIntersectionVisitor

Returns:

Set of closest RayIntersection

release

public void release()

Description copied from interface: CLResources

Explicitly releases GPU resources held by this object

Specified by:

release in interface CLResources