com.google.gwt.webgl.client

Class WebGLContextAttributes

java.lang.Object

com.google.gwt.core.client.JavaScriptObject

com.google.gwt.webgl.client.WebGLContextAttributes

public class WebGLContextAttributes
extends com.google.gwt.core.client.JavaScriptObject

The WebGLContextAttributes interface contains drawing surface attributes and is passed as the second parameter to getContext. A native object may be supplied as this parameter; the specified attributes will be queried from this object.

Method Summary

Modifier and Type	Method and Description
void	clearAlpha()
void	clearAntialias()
void	clearDepth()
void	clearPremultipliedAlpha()
void	clearStencil()
static WebGLContextAttributes	create()
void	setAlpha(boolean alpha) Default: true.
void	setAntialias(boolean antialias) Default: true.
void	setDepth(boolean depth) Default: true.
void	setPremultipliedAlpha(boolean premultipliedAlpha) Default: true.
void	setStencil(boolean stencil) Default: false.

Methods inherited from class com.google.gwt.core.client.JavaScriptObject

cast, createArray, createArray, createFunction, createObject, equals, hashCode, toSource, toString

Methods inherited from class java.lang.Object

getClass, notify, notifyAll, wait, wait, wait

Method Detail

create

public static WebGLContextAttributes create()

setAlpha

public final void setAlpha(boolean alpha)

Default: true. If the value is true, the drawing buffer has an alpha channel for the purposes of performing OpenGL destination alpha operations and compositing with the page. If the value is false, no alpha buffer is available.

clearAlpha

public final void clearAlpha()

setDepth

public final void setDepth(boolean depth)

Default: true. If the value is true, the drawing buffer has a depth buffer of at least 16 bits. If the value is false, no depth buffer is available.

clearDepth

public final void clearDepth()

setStencil

public final void setStencil(boolean stencil)

Default: false. If the value is true, the drawing buffer has a stencil buffer of at least 8 bits. If the value is false, no stencil buffer is available.

clearStencil

public final void clearStencil()

setAntialias

public final void setAntialias(boolean antialias)

Default: true. If the value is true and the implementation supports antialiasing the drawing buffer will perform antialiasing using its choice of technique (multisample/supersample) and quality. If the value is false or the implementation does not support antialiasing, no antialiasing is performed.

clearAntialias

public final void clearAntialias()

setPremultipliedAlpha

public final void setPremultipliedAlpha(boolean premultipliedAlpha)

Default: true. If the value is true the page compositor will assume the drawing buffer contains colors with premultiplied alpha. If the value is false the page compositor will assume that colors in the drawing buffer are not premultiplied. This flag is ignored if the alpha flag is false. See Premultiplied Alpha for more information on the effects of the premultipliedAlpha flag.

clearPremultipliedAlpha

public final void clearPremultipliedAlpha()