Package cz.fidentis.analyst.opencl.memory.impl

Class RayIntersectionBuffer

java.lang.Object

cz.fidentis.analyst.opencl.memory.BufferGPU<FloatBuffer>

cz.fidentis.analyst.opencl.memory.impl.RayIntersectionBuffer

All Implemented Interfaces:

CLResources

public class RayIntersectionBuffer
extends BufferGPU<FloatBuffer>

Buffer to hold results of ray intersections on GPU Each intersection is aligned to 8 continuous values 0,1,2 --> Intersection Point 3 --> Triangle index --> in GPU memory - needed if we want to recreate the RayIntersection on CPU side Triangle index is positive if the HIT is direct, Negative, if the hit is indirect, and 0 if no HIT happened 4,5,6 --> Intersection Normal 7 --> Ray Intersection distance

Constructor Summary

Constructors

Constructor	Description
RayIntersectionBuffer(com.jogamp.opencl.CLContext clContext)	Initializes buffer of ray intersections

Method Summary

Modifier and Type	Method	Description
protected void	allocateBuffer(int desiredSize)	Allocate the buffer to fit the elements
com.jogamp.opencl.CLBuffer<FloatBuffer>	get()	Get underlying CLBuffer
void	release()	Explicitly releases GPU resources held by this object
protected void	resizeSubBuffer(int desiredSize)	Creating new SubBuffer of the main buffer to operate with smaller amount of memory
void	rewind()	Rewinds the buffer

Methods inherited from class cz.fidentis.analyst.opencl.memory.BufferGPU

getClContext, getCount, getElementSize, getQueue, getSize, resize

Methods inherited from class java.lang.Object

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

Constructor Details

RayIntersectionBuffer

public RayIntersectionBuffer(com.jogamp.opencl.CLContext clContext)

Initializes buffer of ray intersections

Method Details

get

public com.jogamp.opencl.CLBuffer<FloatBuffer> get()

Description copied from class: BufferGPU

Get underlying CLBuffer

Specified by:

get in class BufferGPU<FloatBuffer>

Returns:

CLBuffer

rewind

public void rewind()

Description copied from class: BufferGPU

Rewinds the buffer

Specified by:

rewind in class BufferGPU<FloatBuffer>

release

public void release()

Description copied from interface: CLResources

Explicitly releases GPU resources held by this object

allocateBuffer

protected void allocateBuffer(int desiredSize)

Description copied from class: BufferGPU

Allocate the buffer to fit the elements

Specified by:

allocateBuffer in class BufferGPU<FloatBuffer>

Parameters:

desiredSize - desired size of the buffer

resizeSubBuffer

protected void resizeSubBuffer(int desiredSize)

Description copied from class: BufferGPU

Creating new SubBuffer of the main buffer to operate with smaller amount of memory

Specified by:

resizeSubBuffer in class BufferGPU<FloatBuffer>

Parameters:

desiredSize - desired size of the buffer