Package org.sunflow.core.renderer

Class MultipassRenderer

java.lang.Object

org.sunflow.core.renderer.MultipassRenderer

All Implemented Interfaces:

ImageSampler

public class MultipassRenderer
extends java.lang.Object
implements ImageSampler

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
private class	MultipassRenderer.BucketThread

Field Summary

Fields

Modifier and Type	Field	Description
private int[]	bucketCoords
private int	bucketCounter
private BucketOrder	bucketOrder
private java.lang.String	bucketOrderName
private int	bucketSize
private Display	display
private int	imageHeight
private int	imageWidth
private float	invNumSamples
private int	numSamples
private Scene	scene
private boolean	shadingCache

Constructor Summary

Constructors

Constructor	Description
MultipassRenderer()

Method Summary

Modifier and Type	Method	Description
private static double	distb1(double x)
boolean	prepare(Options options, Scene scene, int w, int h)	Prepare the sampler for rendering an image of w x h pixels
private static double	qpow(double x)
void	render(Display display)	Render the image to the specified display.
private void	renderBucket(Display display, int bx, int by, int threadID, IntersectionState istate, ShadingCache cache)
private static double	warpCubic(double x)	Cubic BSpline warping functions.
private static float	warpTent(float x)	Tent filter warping function.

Methods inherited from class java.lang.Object

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

Field Detail

scene

private Scene scene

display

private Display display

imageWidth

private int imageWidth

imageHeight

private int imageHeight

bucketOrderName

private java.lang.String bucketOrderName

bucketOrder

private BucketOrder bucketOrder

bucketSize

private int bucketSize

bucketCounter

private int bucketCounter

bucketCoords

private int[] bucketCoords

numSamples

private int numSamples

invNumSamples

private float invNumSamples

shadingCache

private boolean shadingCache

Constructor Detail

MultipassRenderer

public MultipassRenderer()

Method Detail

prepare

public boolean prepare(Options options,
                       Scene scene,
                       int w,
                       int h)

Description copied from interface: ImageSampler

Prepare the sampler for rendering an image of w x h pixels

Specified by:

prepare in interface ImageSampler

w - width of the image

h - height of the image

render

public void render(Display display)

Description copied from interface: ImageSampler

Render the image to the specified display. The sampler can assume the display has been opened and that it will be closed after the method returns.

Specified by:

render in interface ImageSampler

Parameters:

display - Display driver to send image data to

renderBucket

private void renderBucket(Display display,
                          int bx,
                          int by,
                          int threadID,
                          IntersectionState istate,
                          ShadingCache cache)

warpTent

private static final float warpTent(float x)

Tent filter warping function.

Parameters:

x - sample in the [0,1) range

Returns:

warped sample in the [-1,+1) range

warpCubic

private static final double warpCubic(double x)

Cubic BSpline warping functions. Formulas from: "Generation of Stratified Samples for B-Spline Pixel Filtering" http://www.cs.utah.edu/~mstark/papers/

Parameters:

x - samples in the [0,1) range

Returns:

warped sample in the [-2,+2) range

qpow

private static final double qpow(double x)

distb1

private static final double distb1(double x)