javax.media.j3d
Class TextureCubeMap

java.lang.Object
  javax.media.j3d.SceneGraphObject
      javax.media.j3d.NodeComponent
          javax.media.j3d.Texture
              javax.media.j3d.TextureCubeMap

public class TextureCubeMap
extends Texture

TextureCubeMap is a subclass of Texture class. It defines a special kind of texture mapping which is composed of a set of six 2D images representating the six faces of a cube. The texture coordinate (s,t,r) is used as a 3D direction vector emanating from the center of a cube to select a particular face of the cube based on the largest magnitude coordinate (the major axis). A new 2D texture coordinate (s,t) is then determined by dividing the other two coordinates (the minor axes) by the major axis value. The new coordinate is then used for texel lookup from the selected texture image of this cube map. The TextureCubeMap image is defined by specifying the images for each face of the cube. The cube map texture can be thought of as centered at the orgin of and aligned to an XYZ coordinate system. The names of the cube faces are:

• POSITIVE_X
• NEGATIVE_X
• POSITIVE_Y
• NEGATIVE_Y
• POSITIVE_Z
• NEGATIVE_Z

Note that as of Java 3D 1.5, the texture width and height are no longer required to be an exact power of two. However, not all graphics devices supports non-power-of-two textures. If non-power-of-two texture mapping is unsupported on a particular Canvas3D, textures with a width or height that are not an exact power of two are ignored for that canvas.

Since:

Java 3D 1.3

See Also:

Canvas3D.queryProperties()

Field Summary

static int	NEGATIVE_X Specifies the face of the cube that is pierced by the negative x axis
static int	NEGATIVE_Y Specifies the face of the cube that is pierced by the negative y axis
static int	NEGATIVE_Z Specifies the face of the cube that is pierced by the negative z axis
static int	POSITIVE_X Specifies the face of the cube that is pierced by the positive x axis
static int	POSITIVE_Y Specifies the face of the cube that is pierced by the positive y axis
static int	POSITIVE_Z Specifies the face of the cube that is pierced by the positive z axis

Fields inherited from class javax.media.j3d.Texture

ALLOW_ANISOTROPIC_FILTER_READ, ALLOW_BOUNDARY_COLOR_READ, ALLOW_BOUNDARY_MODE_READ, ALLOW_ENABLE_READ, ALLOW_ENABLE_WRITE, ALLOW_FILTER_READ, ALLOW_FILTER4_READ, ALLOW_FORMAT_READ, ALLOW_IMAGE_READ, ALLOW_IMAGE_WRITE, ALLOW_LOD_RANGE_READ, ALLOW_LOD_RANGE_WRITE, ALLOW_MIPMAP_MODE_READ, ALLOW_SHARPEN_TEXTURE_READ, ALLOW_SIZE_READ, ALPHA, ANISOTROPIC_NONE, ANISOTROPIC_SINGLE_VALUE, BASE_LEVEL, BASE_LEVEL_LINEAR, BASE_LEVEL_POINT, CLAMP, CLAMP_TO_BOUNDARY, CLAMP_TO_EDGE, FASTEST, FILTER4, INTENSITY, LINEAR_SHARPEN, LINEAR_SHARPEN_ALPHA, LINEAR_SHARPEN_RGB, LUMINANCE, LUMINANCE_ALPHA, MULTI_LEVEL_LINEAR, MULTI_LEVEL_MIPMAP, MULTI_LEVEL_POINT, NICEST, RGB, RGBA, WRAP

Constructor Summary

TextureCubeMap()
Constructs a texture object using default values.

TextureCubeMap(int mipmapMode, int format, int width)
Constructs an empty TextureCubeMap object with specified mipmapMode format, and width.

TextureCubeMap(int mipmapMode, int format, int width, int boundaryWidth)
Constructs an empty TextureCubeMap object with specified mipmapMode format, width, and boundary width.

Method Summary

void	duplicateNodeComponent(NodeComponent originalNodeComponent) Deprecated. replaced with duplicateNodeComponent( NodeComponent originalNodeComponent, boolean forceDuplicate)
ImageComponent	getImage(int level) This method is not supported for TextureCubeMap.
ImageComponent	getImage(int level, int face) Retrieves the image for a specified mipmap level of a particular face of the cube map.
ImageComponent[]	getImages() This method is not supported for TextureCubeMap.
ImageComponent[]	getImages(int face) Retrieves the array of images for all mipmap level of a particular face of the cube map.
void	setImage(int level, ImageComponent image) This method is not supported for TextureCubeMap.
void	setImage(int level, int face, ImageComponent2D image) Sets the image for a specified mipmap level of a specified face of the cube map
void	setImages(ImageComponent[] images) This method is not supported for TextureCubeMap.
void	setImages(int face, ImageComponent2D[] images) Sets the array of images for mipmap levels from base level through max level for a specified face of the cube map

Methods inherited from class javax.media.j3d.Texture

getAnisotropicFilterDegree, getAnisotropicFilterMode, getBaseLevel, getBoundaryColor, getBoundaryModeS, getBoundaryModeT, getBoundaryWidth, getEnable, getFilter4Func, getFilter4FuncPointsCount, getFormat, getHeight, getLodOffset, getMagFilter, getMaximumLevel, getMaximumLOD, getMinFilter, getMinimumLOD, getMipMapMode, getSharpenTextureFunc, getSharpenTextureFunc, getSharpenTextureFuncPointsCount, getWidth, numMipMapLevels, setAnisotropicFilterDegree, setAnisotropicFilterMode, setBaseLevel, setBoundaryColor, setBoundaryColor, setBoundaryModeS, setBoundaryModeT, setEnable, setFilter4Func, setLodOffset, setLodOffset, setMagFilter, setMaximumLevel, setMaximumLOD, setMinFilter, setMinimumLOD, setMipMapMode, setSharpenTextureFunc, setSharpenTextureFunc

Methods inherited from class javax.media.j3d.NodeComponent

cloneNodeComponent, cloneNodeComponent, duplicateNodeComponent, getDuplicateOnCloneTree, setDuplicateOnCloneTree

Methods inherited from class javax.media.j3d.SceneGraphObject

clearCapability, clearCapabilityIsFrequent, getCapability, getCapabilityIsFrequent, getName, getUserData, isCompiled, isLive, setCapability, setCapabilityIsFrequent, setName, setUserData, toString, updateNodeReferences

Methods inherited from class java.lang.Object

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

Field Detail

POSITIVE_X

public static final int POSITIVE_X

Specifies the face of the cube that is pierced by the positive x axis

See Also:

Constant Field Values

NEGATIVE_X

public static final int NEGATIVE_X

Specifies the face of the cube that is pierced by the negative x axis

See Also:

Constant Field Values

POSITIVE_Y

public static final int POSITIVE_Y

Specifies the face of the cube that is pierced by the positive y axis

See Also:

Constant Field Values

NEGATIVE_Y

public static final int NEGATIVE_Y

Specifies the face of the cube that is pierced by the negative y axis

See Also:

Constant Field Values

POSITIVE_Z

public static final int POSITIVE_Z

Specifies the face of the cube that is pierced by the positive z axis

See Also:

Constant Field Values

NEGATIVE_Z

public static final int NEGATIVE_Z

Specifies the face of the cube that is pierced by the negative z axis

See Also:

Constant Field Values

Constructor Detail

TextureCubeMap

public TextureCubeMap()

Constructs a texture object using default values. Note that the default constructor creates a texture object with a width of 0 and is, therefore, not useful.

TextureCubeMap

public TextureCubeMap(int mipmapMode,
                      int format,
                      int width)

Constructs an empty TextureCubeMap object with specified mipmapMode format, and width. Image at base level must be set by the application using 'setImage' method. If mipmapMode is set to MULTI_LEVEL_MIPMAP, images for base level through maximum level must be set. Note that cube map is square in dimensions, hence specifying width is sufficient. Note also that a texture with a non-power-of-two width will only be rendered on a graphics device that supports non-power-of-two textures.

Parameters:

mipmapMode - type of mipmap for this Texture: One of BASE_LEVEL, MULTI_LEVEL_MIPMAP.

format - data format of Textures saved in this object. One of INTENSITY, LUMINANCE, ALPHA, LUMINANCE_ALPHA, RGB, RGBA.

width - width (and height) of image at level 0.

Throws:

java.lang.IllegalArgumentException - if width is not greater than 0 OR invalid format/mipmapMode is specified.

TextureCubeMap

public TextureCubeMap(int mipmapMode,
                      int format,
                      int width,
                      int boundaryWidth)

Constructs an empty TextureCubeMap object with specified mipmapMode format, width, and boundary width. Image at base level must be set by the application using 'setImage' method. If mipmapMode is set to MULTI_LEVEL_MIPMAP, images for base level through maximum level must be set. Note that cube map is square in dimensions, hence specifying width is sufficient. Note also that a texture with a non-power-of-two width will only be rendered on a graphics device that supports non-power-of-two textures.

Parameters:

mipmapMode - type of mipmap for this Texture: One of BASE_LEVEL, MULTI_LEVEL_MIPMAP.

format - data format of Textures saved in this object. One of INTENSITY, LUMINANCE, ALPHA, LUMINANCE_ALPHA, RGB, RGBA.

width - width (and height) of image at level 0. This does not include the width of the boundary.

boundaryWidth - width of the boundary, which must be 0 or 1.

Throws:

java.lang.IllegalArgumentException - if width is not greater than 0 OR invalid format/mipmapMode is specified.

Method Detail

setImage

public void setImage(int level,
                     int face,
                     ImageComponent2D image)

Sets the image for a specified mipmap level of a specified face of the cube map

Parameters:

level - mipmap level

face - face of the cube map. One of: POSITIVE_X, NEGATIVE_X, POSITIVE_Y, NEGATIVE_Y, POSITIVE_Z or NEGATIVE_Z.

image - ImageComponent2D object containing the image

Throws:

java.lang.IllegalArgumentException - if face has a value other than POSITIVE_X, NEGATIVE_X, POSITIVE_Y, NEGATIVE_Y, POSITIVE_Z or NEGATIVE_Z.

CapabilityNotSetException - if appropriate capability is not set and this object is part of live or compiled scene graph

IllegalSharingException - if this TextureCubeMap is live and the specified image is being used by a Canvas3D as an off-screen buffer.

IllegalSharingException - if this TextureCubeMap is being used by an immediate mode context and the specified image is being used by a Canvas3D as an off-screen buffer.

setImages

public void setImages(int face,
                      ImageComponent2D[] images)

Sets the array of images for mipmap levels from base level through max level for a specified face of the cube map

Parameters:

face - face of the cube map. One of: POSITIVE_X, NEGATIVE_X, POSITIVE_Y, NEGATIVE_Y, POSITIVE_Z or NEGATIVE_Z.

images - array of ImageComponent2D objects containing the images

Throws:

java.lang.IllegalArgumentException - if face has a value other than POSITIVE_X, NEGATIVE_X, POSITIVE_Y, NEGATIVE_Y, POSITIVE_Z or NEGATIVE_Z.

CapabilityNotSetException - if appropriate capability is not set and this object is part of live or compiled scene graph

IllegalSharingException - if this TextureCubeMap is live and any of the specified images are being used by a Canvas3D as an off-screen buffer.

IllegalSharingException - if this TextureCubeMap is being used by an immediate mode context and any of the specified images are being used by a Canvas3D as an off-screen buffer.

getImage

public ImageComponent getImage(int level,
                               int face)

Retrieves the image for a specified mipmap level of a particular face of the cube map.

Parameters:

level - mipmap level to get.

face - face of the cube map. One of: POSITIVE_X, NEGATIVE_X, POSITIVE_Y, NEGATIVE_Y, POSITIVE_Z or NEGATIVE_Z.

Returns:

the ImageComponent object containing the texture image at the specified mipmap level.

Throws:

java.lang.IllegalArgumentException - if face has a value other than POSITIVE_X, NEGATIVE_X, POSITIVE_Y, NEGATIVE_Y, POSITIVE_Z or NEGATIVE_Z.

CapabilityNotSetException - if appropriate capability is not set and this object is part of live or compiled scene graph

getImages

public ImageComponent[] getImages(int face)

Retrieves the array of images for all mipmap level of a particular face of the cube map.

Parameters:

face - face of the cube map. One of: POSITIVE_X, NEGATIVE_X, POSITIVE_Y, NEGATIVE_Y, POSITIVE_Z or NEGATIVE_Z.

Returns:

an array of ImageComponent object for the particular face of of the cube map.

Throws:

java.lang.IllegalArgumentException - if face has a value other than POSITIVE_X, NEGATIVE_X, POSITIVE_Y, NEGATIVE_Y, POSITIVE_Z or NEGATIVE_Z.

CapabilityNotSetException - if appropriate capability is not set and this object is part of live or compiled scene graph

setImage

public void setImage(int level,
                     ImageComponent image)

This method is not supported for TextureCubeMap. A face of the cube map has to be specified when setting an image for a particular level of the cube map.

Overrides:

setImage in class Texture

Parameters:

level - mipmap level to set: 0 is the base level

image - ImageComponent object containing the texture image for the specified mipmap level

Throws:

java.lang.UnsupportedOperationException - this method is not supported

Since:

Java 3D 1.3

setImages

public void setImages(ImageComponent[] images)

This method is not supported for TextureCubeMap. A face of the cube map has to be specified when setting images for the cube map.

Overrides:

setImages in class Texture

Parameters:

images - array of ImageComponent objects containing the texture images for all mipmap levels

Throws:

java.lang.UnsupportedOperationException - this method is not supported

Since:

Java 3D 1.3

getImage

public ImageComponent getImage(int level)

This method is not supported for TextureCubeMap. A face of the cube map has to be specified when retrieving an image for a particular level of the cube map.

Overrides:

getImage in class Texture

Parameters:

level - mipmap level to get: 0 is the base level

Returns:

the ImageComponent object containing the texture image at the specified mipmap level.

Throws:

java.lang.UnsupportedOperationException - this method is not supported

Since:

Java 3D 1.3

getImages

public ImageComponent[] getImages()

This method is not supported for TextureCubeMap. A face of the cube map has to be specified when retrieving images for the cube map.

Overrides:

getImages in class Texture

Returns:

the array of ImageComponent objects for this Texture.

Throws:

java.lang.UnsupportedOperationException - this method is not supported

Since:

Java 3D 1.3

duplicateNodeComponent

public void duplicateNodeComponent(NodeComponent originalNodeComponent)

Deprecated. replaced with duplicateNodeComponent( NodeComponent originalNodeComponent, boolean forceDuplicate)

NOTE: Applications should not call this method directly. It should only be called by the cloneNode method.

Overrides:

duplicateNodeComponent in class NodeComponent