Package org.jzy3d.plot3d.rendering.ddp

Class DepthPeelingRenderer3d

java.lang.Object

org.jzy3d.plot3d.rendering.view.Renderer3d

org.jzy3d.plot3d.rendering.ddp.DepthPeelingRenderer3d

All Implemented Interfaces:

com.jogamp.opengl.GLEventListener, EventListener

public class DepthPeelingRenderer3d
extends Renderer3d

Execute depth peeling methods in a Jzy3d Renderer3d This feature is based on Order Independent Transparency algorithms published by Louis Bavoil (NVIDIA Corporation). The renderer support 4 methods:

• Dual depth peeling (accurate)
• Front to back peeling (accurate)
• Weighted average peeling (fast)
• Weighted sum peeling (fast)

Depth peeling is traditionally used to perform order independent transparency (OIT) with N geometry passes for N transparency layers. Dual depth peeling enables peeling N transparency layers in N/2+1 passes, by peeling from the front and the back simultaneously using a min-max depth buffer. This sample performs either normal or dual depth peeling and blends on the fly.

Author:

Louis Bavoil - original paper and C++ code, Martin Pernollet - port to Jzy3d

Field Summary

Fields

Modifier and Type	Field	Description
protected boolean	autoSwapBuffer
protected static boolean	AXE_IN_PEELING
protected static boolean	DEBUG
static boolean	DECOMPOSE_VIEW
protected IDepthPeelingAlgorithm	dualPeelingAlgorithm
protected org.apache.log4j.Logger	LOGGER

Fields inherited from class org.jzy3d.plot3d.rendering.view.Renderer3d

debugGL, doScreenshotAtNextDisplay, height, image, lastRenderingTimeMs, profileDisplayTimer, traceGL, view, width

Constructor Summary

Constructors

Constructor	Description
DepthPeelingRenderer3d(PeelingMethod algorithm, DepthPeelingView view, boolean traceGL, boolean debugGL)
DepthPeelingRenderer3d(DepthPeelingView view, boolean traceGL, boolean debugGL)

Method Summary

Modifier and Type	Method	Description
void	display(com.jogamp.opengl.GLAutoDrawable drawable)	Called when the GLAutoDrawable requires a rendering.
void	dispose(com.jogamp.opengl.GLAutoDrawable drawable)
static IDepthPeelingAlgorithm	getDepthPeelingAlgorithm(PeelingMethod method)
static IGLRenderer	getDepthPeelingContentRenderer(View view)
protected com.jogamp.opengl.GL2	getGL2(com.jogamp.opengl.GLAutoDrawable drawable)
void	init(com.jogamp.opengl.GLAutoDrawable canvas)	Called when the GLAutoDrawable is rendered for the first time.
void	postDisplay(com.jogamp.opengl.GL2 gl)
void	preDisplay(com.jogamp.opengl.GL2 gl)
void	reshape(com.jogamp.opengl.GLAutoDrawable drawable, int x, int y, int width, int height)	Rebuild all depth peeling buffers for the new screen size.

Methods inherited from class org.jzy3d.plot3d.rendering.view.Renderer3d

getHeight, getLastRenderingTimeMs, getLastScreenshot, getWidth, nextDisplayUpdateScreenshot, updatePainterWithGL

Methods inherited from class java.lang.Object

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

Field Detail

LOGGER

protected org.apache.log4j.Logger LOGGER

dualPeelingAlgorithm

protected IDepthPeelingAlgorithm dualPeelingAlgorithm

autoSwapBuffer

protected boolean autoSwapBuffer

AXE_IN_PEELING

protected static boolean AXE_IN_PEELING

DEBUG

protected static boolean DEBUG

DECOMPOSE_VIEW

public static boolean DECOMPOSE_VIEW

Constructor Detail

DepthPeelingRenderer3d

public DepthPeelingRenderer3d(DepthPeelingView view,
                              boolean traceGL,
                              boolean debugGL)

DepthPeelingRenderer3d

public DepthPeelingRenderer3d(PeelingMethod algorithm,
                              DepthPeelingView view,
                              boolean traceGL,
                              boolean debugGL)

Method Detail

init

public void init(com.jogamp.opengl.GLAutoDrawable canvas)

Description copied from class: Renderer3d

Called when the GLAutoDrawable is rendered for the first time. When one calls Scene.init() function, this function is called and makes the OpenGL buffers initialization. Note: in this implementation, GL Exceptions are not triggered. To do so, make te following call at the beginning of the init() body: canvas.setGL( new DebugGL(canvas.getGL()) );

Specified by:

init in interface com.jogamp.opengl.GLEventListener

Overrides:

init in class Renderer3d

getGL2

protected com.jogamp.opengl.GL2 getGL2(com.jogamp.opengl.GLAutoDrawable drawable)

display

public void display(com.jogamp.opengl.GLAutoDrawable drawable)

Description copied from class: Renderer3d

Called when the GLAutoDrawable requires a rendering. All call to rendering methods should appear here.

Specified by:

display in interface com.jogamp.opengl.GLEventListener

Overrides:

display in class Renderer3d

postDisplay

public void postDisplay(com.jogamp.opengl.GL2 gl)

preDisplay

public void preDisplay(com.jogamp.opengl.GL2 gl)

getDepthPeelingContentRenderer

public static IGLRenderer getDepthPeelingContentRenderer(View view)

reshape

public void reshape(com.jogamp.opengl.GLAutoDrawable drawable,
                    int x,
                    int y,
                    int width,
                    int height)

Rebuild all depth peeling buffers for the new screen size.

Specified by:

reshape in interface com.jogamp.opengl.GLEventListener

Overrides:

reshape in class Renderer3d

dispose

public void dispose(com.jogamp.opengl.GLAutoDrawable drawable)

Specified by:

dispose in interface com.jogamp.opengl.GLEventListener

Overrides:

dispose in class Renderer3d

getDepthPeelingAlgorithm

public static IDepthPeelingAlgorithm getDepthPeelingAlgorithm(PeelingMethod method)