com.openinventor.inventor.antialiasing

Class SoAccumulationAntialiasingParameters

java.lang.Object

com.openinventor.inventor.Inventor

com.openinventor.inventor.antialiasing.SoAntialiasingParameters

com.openinventor.inventor.antialiasing.SoAccumulationAntialiasingParameters

public class SoAccumulationAntialiasingParameters
extends SoAntialiasingParameters

Antialiasing parameters class for the accumulation buffer algorithm. This class provides the different parameters that can be set to configure the accumulation buffer antialiasing algorithm. These objects are used with the setAntialiasing() method in SoSceneManager and some viewer classes (e.g. SoWinGLWidget).

There are actually two kinds of antialiasing available: smoothing and multipass antialiasing. If smoothing is set to true, smoothing is enabled. Smoothing uses OpenGL's line- and point-smoothing features to provide cheap antialiasing of lines and points. Line smoothing is an inexpensive solution for wire frame geometry. Point smoothing is an easy way to render round points instead of square ones. The value of numPasses controls multipass antialiasing. Each time a render action is applied, Open Inventor renders the scene numPasses times from slightly different camera positions, averaging the results. numPasses can be from one to 255, inclusive. Setting numPasses to one disables multipass antialiasing. You can use either, both, or neither of these antialiasing techniques. By default, both smoothing and multipass antialiasing are disabled.

Increasing the number of render passes can significantly reduce performance for large scenes. As a result this technique has generally been replaced by FSAA and FXAA techniques.

See also:

SoFullSceneAntialiasingParameters, SoFXAAParameters

Nested Class Summary

Nested classes/interfaces inherited from class com.openinventor.inventor.Inventor

Inventor.ConstructorCommand

Field Summary

Fields inherited from class com.openinventor.inventor.Inventor

VERBOSE_LEVEL, ZeroHandle

Constructor Summary

Constructors

Constructor and Description
SoAccumulationAntialiasingParameters(boolean smooth, int numPasses) Constructor which takes as input two parameters.

Method Summary

Modifier and Type	Method and Description
int	getNumPasses() Returns the number of rendering passes requested for the antialiasing process.
boolean	isSmooth() Returns true if line and point smoothing is requested.

Methods inherited from class com.openinventor.inventor.Inventor

dispose, getAddress, getNativeResourceHandle, startInternalThreads, stopInternalThreads

Methods inherited from class java.lang.Object

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

Constructor Detail

SoAccumulationAntialiasingParameters

public SoAccumulationAntialiasingParameters(boolean smooth,
                                            int numPasses)

Constructor which takes as input two parameters.

Parameters:

smooth - Indicates if we want to turn on line and point smoothing.

numPasses - The number of rendering passes we want to accumulate in the accumulation buffers. numPasses should be >= 1.

Method Detail

isSmooth

public boolean isSmooth()

Returns true if line and point smoothing is requested.

getNumPasses

public int getNumPasses()

Returns the number of rendering passes requested for the antialiasing process.