javax.media.j3d

Class Texture

java.lang.Object

javax.media.j3d.SceneGraphObject

javax.media.j3d.NodeComponent

javax.media.j3d.Texture

Direct Known Subclasses:

Texture2D, Texture3D, TextureCubeMap

public abstract class Texture
extends NodeComponent

The Texture object is a component object of an Appearance object that defines the texture properties used when texture mapping is enabled. The Texture object is an abstract class and all texture objects must be created as either a Texture2D object or a Texture3D object.

Each Texture object has the following properties:

• Boundary color - the texture boundary color. The texture boundary color is used when the boundaryModeS and boundaryModeT parameters are set to CLAMP or CLAMP_TO_BOUNDARY and if the texture boundary is not specified.
• Boundary Width - the texture boundary width, which must be 0 or 1. If the texture boundary width is 1, then all images for all mipmap levels will include a border. The actual texture image for level 0, for example, will be of dimension (width + 2*boundaryWidth) * (height + 2*boundaryWidth). The boundary texels will be used when linear filtering is to be applied.
• Boundary ModeS and Boundary ModeT - the boundary mode for the S and T coordinates, respectively. The boundary modes are as follows:
• CLAMP - clamps texture coordinates to be in the range [0,1]. Texture boundary texels or the constant boundary color if boundary width is 0 will be used for U,V values that fall outside this range.
• WRAP - repeats the texture by wrapping texture coordinates that are outside the range [0,1]. Only the fractional portion of the texture coordinates is used. The integer portion is discarded
• CLAMP_TO_EDGE - clamps texture coordinates such that filtering will not sample a texture boundary texel. Texels at the edge of the texture will be used instead.
• CLAMP_TO_BOUNDARY - clamps texture coordinates such that filtering will sample only texture boundary texels, that is, it will never get some samples from the boundary and some from the edge. This will ensure clean unfiltered boundaries. If the texture does not have a boundary, that is the boundary width is equal to 0, then the constant boundary color will be used.

• Image - an image or an array of images for all the mipmap levels. If only one image is provided, the MIPmap mode must be set to BASE_LEVEL.
• Magnification filter - the magnification filter function. Used when the pixel being rendered maps to an area less than or equal to one texel. The magnification filter functions are as follows:
• FASTEST - uses the fastest available method for processing geometry.
• NICEST - uses the nicest available method for processing geometry.
• BASE_LEVEL_POINT - selects the nearest texel in the base level texture image.
• BASE_LEVEL_LINEAR - performs a bilinear interpolation on the four nearest texels in the base level texture image. The texture value T' is computed as follows:
i₀ = trunc(u - 0.5)

j₀ = trunc(v - 0.5)

i₁ = i₀ + 1

j₁ = j₀ + 1

a = frac(u - 0.5)

b = frac(v - 0.5)

T' = (1-a)*(1-b)*T_i0j0 + a*(1-b)*T_i1j0 + (1-a)*b*T_i0j1 + a*b*T_i1j1

• LINEAR_SHARPEN - sharpens the resulting image by extrapolating from the base level plus one image to the base level image of this texture object.
• LINEAR_SHARPEN_RGB - performs linear sharpen filter for the rgb components only. The alpha component is computed using BASE_LEVEL_LINEAR filter.
• LINEAR_SHARPEN_ALPHA - performs linear sharpen filter for the alpha component only. The rgb components are computed using BASE_LEVEL_LINEAR filter.
• FILTER4 - applies an application-supplied weight function on the nearest 4x4 texels in the base level texture image. The texture value T' is computed as follows:

i1 = trunc(u - 0.5)	i2 = i1 + 1	i3 = i2 + 1	i0 = i1 - 1
j1 = trunc(v - 0.5)	j3 = j2 + 1	j2 = j1 + 1	j0 = j1 - 1
a = frac(u - 0.5)
b = frac(v - 0.5)

f(x) : filter4 function where 0<=x<=2

T' = f(1+a) * f(1+b) * T_i0j0 + f(a) * f(1+b) * T_i1j0 + f(1-a) * f(1+b) * T_i2j0 + f(2-a) * f(1+b) * T_i3j0 +
f(1+a) * f(b) * T_i0j1 + f(a) * f(b) * T_i1j1 + f(1-a) * f(b) * T_i2j1 + f(2-a) * f(b) * T_i3j1 +
f(1+a) * f(1-b) * T_i0j2 + f(a) * f(1-b) * T_i1j2 + f(1-a) * f(1-b) * T_i2j2 + f(2-a) * f(1-b) * T_i3j2 +
f(1+a) * f(2-b) * T_i0j3 + f(a) * f(2-b) * T_i1j3 + f(1-a) * f(2-b) * T_i2j3 + f(2-a) * f(2-b) * T_i3j3

• Minification filter - the minification filter function. Used when the pixel being rendered maps to an area greater than one texel. The minifaction filter functions are as follows:
• FASTEST - uses the fastest available method for processing geometry.
• NICEST - uses the nicest available method for processing geometry.
• BASE_LEVEL_POINT - selects the nearest level in the base level texture map.
• BASE_LEVEL_LINEAR - performs a bilinear interpolation on the four nearest texels in the base level texture map.
• MULTI_LEVEL_POINT - selects the nearest texel in the nearest mipmap.
• MULTI_LEVEL_LINEAR - performs trilinear interpolation of texels between four texels each from the two nearest mipmap levels.
• FILTER4 - applies an application-supplied weight function on the nearest 4x4 texels in the base level texture image.

• MIPmap mode - the mode used for texture mapping for this object. The mode is one of the following:
• BASE_LEVEL - indicates that this Texture object only has a base-level image. If multiple levels are needed, they will be implicitly computed.
• MULTI_LEVEL_MIPMAP - indicates that this Texture object has multiple images. If MIPmap mode is set to MULTI_LEVEL_MIPMAP, images for Base Level through Max Level must be set.

• Format - the data format. The format is one of the following:
• INTENSITY - the texture image contains only texture values.
• LUMINANCE - the texture image contains only luminance values.
• ALPHA - the texture image contains only alpha values.
• LUMINANCE_ALPHA - the texture image contains both luminance and alpha values.
• RGB - the texture image contains red, green, and blue values.
• RGBA - the texture image contains red, green, blue, and alpha values.

• Base Level - specifies the mipmap level to be used when filter specifies BASE_LEVEL_POINT or BASE_LEVEL_LINEAR.
• Maximum Level - specifies the maximum level of image that needs to be defined for this texture to be valid. Note, for this texture to be valid, images for Base Level through Maximum Level have to be defined.
• Minimum LOD - specifies the minimum of the LOD range. LOD smaller than this value will be clamped to this value.
• Maximum LOD - specifies the maximum of the LOD range. LOD larger than this value will be clamped to this value.
• LOD offset - specifies the offset to be used in the LOD calculation to compensate for under or over sampled texture images.
• Anisotropic Mode - defines how anisotropic filter is applied for this texture object. The anisotropic modes are as follows:
• ANISOTROPIC_NONE - no anisotropic filtering.
• ANISOTROPIC_SINGLE_VALUE - applies the degree of anisotropic filter in both the minification and magnification filters.

• Anisotropic Filter Degree - controls the degree of anisotropy. This property applies to both minification and magnification filtering. If it is equal to 1.0, then an isotropic filtering as specified in the minification or magnification filter will be used. If it is greater than 1.0, and the anisotropic mode is equal to ANISOTROPIC_SINGLE_VALUE, then the degree of anisotropy will also be applied in the filtering.
• Sharpen Texture Function - specifies the function of level-of-detail used in combining the texture value computed from the base level image and the texture value computed from the base level plus one image. The final texture value is computed as follows:
T' = ((1 + SharpenFunc(LOD)) * T_BaseLevel) - (SharpenFunc(LOD) * T_BaseLevel+1)

• Filter4 Function - specifies the function to be applied to the nearest 4x4 texels. This property includes samples of the filter function f(x), 0<=x<=2. The number of function values supplied has to be equal to 2^m + 1 for some integer value of m greater than or equal to 4.

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.

See Also:

Canvas3D.queryProperties()

Field Summary

Fields

Modifier and Type	Field and Description
static int	ALLOW_ANISOTROPIC_FILTER_READ Specifies that this Texture object allows reading its anistropic filter information (e.g., anisotropic mode, anisotropic filter)
static int	ALLOW_BOUNDARY_COLOR_READ Specifies that this Texture object allows reading its boundary color information.
static int	ALLOW_BOUNDARY_MODE_READ Specifies that this Texture object allows reading its boundary mode information.
static int	ALLOW_ENABLE_READ Specifies that this Texture object allows reading its enable flag.
static int	ALLOW_ENABLE_WRITE Specifies that this Texture object allows writing its enable flag.
static int	ALLOW_FILTER_READ Specifies that this Texture object allows reading its filter information.
static int	ALLOW_FILTER4_READ Specifies that this Texture object allows reading its filter4 function information.
static int	ALLOW_FORMAT_READ Specifies that this Texture object allows reading its format information.
static int	ALLOW_IMAGE_READ Specifies that this Texture object allows reading its image component information.
static int	ALLOW_IMAGE_WRITE Specifies that this Texture object allows writing its image component information.
static int	ALLOW_LOD_RANGE_READ Specifies that this Texture object allows reading its LOD range information (e.g., base level, maximum level, minimum lod, maximum lod, lod offset)
static int	ALLOW_LOD_RANGE_WRITE Specifies that this Texture object allows writing its LOD range information (e.g., base level, maximum level, minimum lod, maximum lod, lod offset)
static int	ALLOW_MIPMAP_MODE_READ Specifies that this Texture object allows reading its mipmap mode information.
static int	ALLOW_SHARPEN_TEXTURE_READ Specifies that this Texture object allows reading its sharpen texture function information.
static int	ALLOW_SIZE_READ Specifies that this Texture object allows reading its size information (e.g., width, height, number of mipmap levels, boundary width).
static int	ALPHA Specifies Texture contains only Alpha values.
static int	ANISOTROPIC_NONE No anisotropic filter.
static int	ANISOTROPIC_SINGLE_VALUE Uses the degree of anisotropy in both the minification and magnification filters.
static int	BASE_LEVEL Indicates that Texture object only has one level.
static int	BASE_LEVEL_LINEAR Performs bilinear interpolation on the four nearest texels in level 0 texture map.
static int	BASE_LEVEL_POINT Select the nearest texel in level 0 texture map.
static int	CLAMP Clamps texture coordinates to be in the range [0, 1].
static int	CLAMP_TO_BOUNDARY Clamps texture coordinates such that filtering will sample only texture boundary texels.
static int	CLAMP_TO_EDGE Clamps texture coordinates such that filtering will not sample a texture boundary texel.
static int	FASTEST Uses the fastest available method for processing geometry.
static int	FILTER4 Applies an application-supplied weight function on the nearest 4x4 texels in the base level texture image.
static int	INTENSITY Specifies Texture contains only Intensity values.
static int	LINEAR_SHARPEN Sharpens the resulting image by extrapolating from the base level plus one image to the base level image of this texture object.
static int	LINEAR_SHARPEN_ALPHA Performs linear sharpen filter for the alpha component only.
static int	LINEAR_SHARPEN_RGB Performs linear sharpen filter for the rgb components only.
static int	LUMINANCE Specifies Texture contains only luminance values.
static int	LUMINANCE_ALPHA Specifies Texture contains Luminance and Alpha values.
static int	MULTI_LEVEL_LINEAR Performs tri-linear interpolation of texels between four texels each from two nearest mipmap levels.
static int	MULTI_LEVEL_MIPMAP Indicates that this Texture object has multiple images, one for each mipmap level.
static int	MULTI_LEVEL_POINT Selects the nearest texel in the nearest mipmap.
static int	NICEST Uses the nicest available method for processing geometry.
static int	RGB Specifies Texture contains Red, Green and Blue color values.
static int	RGBA Specifies Texture contains Red, Green, Blue color values and Alpha value.
static int	WRAP Repeats the texture by wrapping texture coordinates that are outside the range [0,1].

Constructor Summary

Constructors

Constructor and Description
Texture() Constructs a Texture object with default parameters.
Texture(int mipMapMode, int format, int width, int height) Constructs an empty Texture object with specified mipMapMode, format, width and height.
Texture(int mipMapMode, int format, int width, int height, int boundaryWidth) Constructs an empty Texture object with specified mipMapMode, format, width, height, and boundaryWidth.

Method Summary

Methods

Modifier and Type	Method and Description
float	getAnisotropicFilterDegree() Retrieves the anisotropic filter degree for this texture object.
int	getAnisotropicFilterMode() Retrieves the anisotropic filter mode for this texture object.
int	getBaseLevel() Retrieves the base level for this texture object.
void	getBoundaryColor(javax.vecmath.Color4f boundaryColor) Retrieves the texture boundary color for this texture object.
int	getBoundaryModeS() Retrieves the boundary mode for the S coordinate.
int	getBoundaryModeT() Retrieves the boundary mode for the T coordinate.
int	getBoundaryWidth() Retrieves the width of the boundary of this Texture object.
boolean	getEnable() Retrieves the state of the texture enable flag.
void	getFilter4Func(float[] weights) Copies the array of filter4 function values into the specified array.
int	getFilter4FuncPointsCount() Retrieves the number of filter4 function values for this texture object.
int	getFormat() Retrieves the format of this Texture object.
int	getHeight() Retrieves the height of this Texture object.
ImageComponent	getImage(int level) Retrieves the image for a specified mipmap level.
ImageComponent[]	getImages() Retrieves the array of images for all mipmap levels.
void	getLodOffset(javax.vecmath.Tuple3f offset) Retrieves the LOD offset for this texture object.
int	getMagFilter() Retrieves the magnification filter.
int	getMaximumLevel() Retrieves the maximum level for this texture object.
float	getMaximumLOD() Retrieves the maximum level-of-detail for this texture object.
int	getMinFilter() Retrieves the minification filter.
float	getMinimumLOD() Retrieves the minimum level-of-detail for this texture object.
int	getMipMapMode() Retrieves current mipmap mode.
void	getSharpenTextureFunc(float[] lod, float[] pts) Copies the array of sharpen texture LOD function points into the specified arrays.
void	getSharpenTextureFunc(javax.vecmath.Point2f[] pts) Copies the array of sharpen texture LOD function points including the lod values and the corresponding function values into the specified array.
int	getSharpenTextureFuncPointsCount() Gets the number of points in the sharpen texture LOD function for this texture object.
int	getWidth() Retrieves the width of this Texture object.
int	numMipMapLevels() Retrieves the number of mipmap levels needed for this Texture object.
void	setAnisotropicFilterDegree(float degree) Specifies the degree of anisotropy to be used when the anisotropic filter mode specifies ANISOTROPIC_SINGLE_VALUE.
void	setAnisotropicFilterMode(int mode) Specifies the anisotropic filter mode for this texture object.
void	setBaseLevel(int baseLevel) Specifies the base level for this texture object.
void	setBoundaryColor(javax.vecmath.Color4f boundaryColor) Sets the texture boundary color for this texture object.
void	setBoundaryColor(float r, float g, float b, float a) Sets the texture boundary color for this texture object.
void	setBoundaryModeS(int boundaryModeS) Sets the boundary mode for the S coordinate in this texture object.
void	setBoundaryModeT(int boundaryModeT) Sets the boundary mode for the T coordinate in this texture object.
void	setEnable(boolean state) Enables or disables texture mapping for this appearance component object.
void	setFilter4Func(float[] weights) sets the filter4 function for this texture object.
void	setImage(int level, ImageComponent image) Sets the image for a specified mipmap level.
void	setImages(ImageComponent[] images) Sets the array of images for all mipmap levels.
void	setLodOffset(float s, float t, float r) Specifies the LOD offset for this texture object.
void	setLodOffset(javax.vecmath.Tuple3f offset) Specifies the LOD offset for this texture object.
void	setMagFilter(int magFilter) Sets the magnification filter function.
void	setMaximumLevel(int maximumLevel) Specifies the maximum level for this texture object.
void	setMaximumLOD(float maximumLod) Specifies the maximum level-of-detail for this texture object.
void	setMinFilter(int minFilter) Sets the minification filter function.
void	setMinimumLOD(float minimumLod) Specifies the minimum level-of-detail for this texture object.
void	setMipMapMode(int mipMapMode) Sets mipmap mode for texture mapping for this texture object.
void	setSharpenTextureFunc(float[] lod, float[] pts) sets the sharpen texture LOD function for this texture object.
void	setSharpenTextureFunc(javax.vecmath.Point2f[] pts) sets the sharpen texture LOD function for this texture object.

Methods inherited from class javax.media.j3d.NodeComponent

cloneNodeComponent, cloneNodeComponent, duplicateNodeComponent, duplicateNodeComponent, getDuplicateOnCloneTree, setDuplicateOnCloneTree

Methods inherited from class javax.media.j3d.SceneGraphObject

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

Methods inherited from class java.lang.Object

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

Field Detail

ALLOW_ENABLE_READ

public static final int ALLOW_ENABLE_READ

Specifies that this Texture object allows reading its enable flag.

See Also:

Constant Field Values

ALLOW_ENABLE_WRITE

public static final int ALLOW_ENABLE_WRITE

Specifies that this Texture object allows writing its enable flag.

See Also:

Constant Field Values

ALLOW_BOUNDARY_MODE_READ

public static final int ALLOW_BOUNDARY_MODE_READ

Specifies that this Texture object allows reading its boundary mode information.

See Also:

Constant Field Values

ALLOW_FILTER_READ

public static final int ALLOW_FILTER_READ

Specifies that this Texture object allows reading its filter information.

See Also:

Constant Field Values

ALLOW_IMAGE_READ

public static final int ALLOW_IMAGE_READ

Specifies that this Texture object allows reading its image component information.

See Also:

Constant Field Values

ALLOW_IMAGE_WRITE

public static final int ALLOW_IMAGE_WRITE

Specifies that this Texture object allows writing its image component information.

Since:

Java 3D 1.2

See Also:

Constant Field Values

ALLOW_FORMAT_READ

public static final int ALLOW_FORMAT_READ

Specifies that this Texture object allows reading its format information.

Since:

Java 3D 1.2

See Also:

Constant Field Values

ALLOW_SIZE_READ

public static final int ALLOW_SIZE_READ

Specifies that this Texture object allows reading its size information (e.g., width, height, number of mipmap levels, boundary width).

Since:

Java 3D 1.2

See Also:

Constant Field Values

ALLOW_MIPMAP_MODE_READ

public static final int ALLOW_MIPMAP_MODE_READ

Specifies that this Texture object allows reading its mipmap mode information.

See Also:

Constant Field Values

ALLOW_BOUNDARY_COLOR_READ

public static final int ALLOW_BOUNDARY_COLOR_READ

Specifies that this Texture object allows reading its boundary color information.

See Also:

Constant Field Values

ALLOW_LOD_RANGE_READ

public static final int ALLOW_LOD_RANGE_READ

Specifies that this Texture object allows reading its LOD range information (e.g., base level, maximum level, minimum lod, maximum lod, lod offset)

Since:

Java 3D 1.3

See Also:

Constant Field Values

ALLOW_LOD_RANGE_WRITE

public static final int ALLOW_LOD_RANGE_WRITE

Specifies that this Texture object allows writing its LOD range information (e.g., base level, maximum level, minimum lod, maximum lod, lod offset)

Since:

Java 3D 1.3

See Also:

Constant Field Values

ALLOW_ANISOTROPIC_FILTER_READ

public static final int ALLOW_ANISOTROPIC_FILTER_READ

Specifies that this Texture object allows reading its anistropic filter information (e.g., anisotropic mode, anisotropic filter)

Since:

Java 3D 1.3

See Also:

Constant Field Values

ALLOW_SHARPEN_TEXTURE_READ

public static final int ALLOW_SHARPEN_TEXTURE_READ

Specifies that this Texture object allows reading its sharpen texture function information.

Since:

Java 3D 1.3

See Also:

Constant Field Values

ALLOW_FILTER4_READ

public static final int ALLOW_FILTER4_READ

Specifies that this Texture object allows reading its filter4 function information.

Since:

Java 3D 1.3

See Also:

Constant Field Values

FASTEST

public static final int FASTEST

Uses the fastest available method for processing geometry. This value can be used as a parameter to setMinFilter and setMagFilter.

See Also:

setMinFilter(int), setMagFilter(int), Constant Field Values

NICEST

public static final int NICEST

Uses the nicest available method for processing geometry. This value can be used as a parameter to setMinFilter and setMagFilter.

See Also:

setMinFilter(int), setMagFilter(int), Constant Field Values

BASE_LEVEL_POINT

public static final int BASE_LEVEL_POINT

Select the nearest texel in level 0 texture map. Maps to NEAREST.

See Also:

setMinFilter(int), setMagFilter(int), Constant Field Values

BASE_LEVEL_LINEAR

public static final int BASE_LEVEL_LINEAR

Performs bilinear interpolation on the four nearest texels in level 0 texture map. Maps to LINEAR.

See Also:

setMinFilter(int), setMagFilter(int), Constant Field Values

MULTI_LEVEL_POINT

public static final int MULTI_LEVEL_POINT

Selects the nearest texel in the nearest mipmap. Maps to NEAREST_MIPMAP_NEAREST.

See Also:

setMinFilter(int), Constant Field Values

MULTI_LEVEL_LINEAR

public static final int MULTI_LEVEL_LINEAR

Performs tri-linear interpolation of texels between four texels each from two nearest mipmap levels. Maps to LINEAR_MIPMAP_LINEAR, but an implementation can fall back to LINEAR_MIPMAP_NEAREST or NEAREST_MIPMAP_LINEAR.

See Also:

setMinFilter(int), Constant Field Values

LINEAR_SHARPEN

public static final int LINEAR_SHARPEN

Sharpens the resulting image by extrapolating from the base level plus one image to the base level image of this texture object.

Since:

Java 3D 1.3

See Also:

setMagFilter(int), Constant Field Values

LINEAR_SHARPEN_RGB

public static final int LINEAR_SHARPEN_RGB

Performs linear sharpen filter for the rgb components only. The alpha component is computed using BASE_LEVEL_LINEAR filter.

Since:

Java 3D 1.3

See Also:

setMagFilter(int), Constant Field Values

LINEAR_SHARPEN_ALPHA

public static final int LINEAR_SHARPEN_ALPHA

Performs linear sharpen filter for the alpha component only. The rgb components are computed using BASE_LEVEL_LINEAR filter.

Since:

Java 3D 1.3

See Also:

setMagFilter(int), Constant Field Values

FILTER4

public static final int FILTER4

Applies an application-supplied weight function on the nearest 4x4 texels in the base level texture image.

Since:

Java 3D 1.3

See Also:

setMinFilter(int), setMagFilter(int), Constant Field Values

CLAMP

public static final int CLAMP

Clamps texture coordinates to be in the range [0, 1]. Texture boundary texels or the constant boundary color if boundary width is 0 will be used for U,V values that fall outside this range.

See Also:

Constant Field Values

WRAP

public static final int WRAP

Repeats the texture by wrapping texture coordinates that are outside the range [0,1]. Only the fractional portion of the texture coordinates is used; the integer portion is discarded.

See Also:

Constant Field Values

CLAMP_TO_EDGE

public static final int CLAMP_TO_EDGE

Clamps texture coordinates such that filtering will not sample a texture boundary texel. Texels at the edge of the texture will be used instead.

Since:

Java 3D 1.3

See Also:

Constant Field Values

CLAMP_TO_BOUNDARY

public static final int CLAMP_TO_BOUNDARY

Clamps texture coordinates such that filtering will sample only texture boundary texels. If the texture does not have a boundary, that is the boundary width is equal to 0, then the constant boundary color will be used.

Since:

Java 3D 1.3

See Also:

Constant Field Values

BASE_LEVEL

public static final int BASE_LEVEL

Indicates that Texture object only has one level. If multiple levels are needed, they will be implicitly computed.

See Also:

Constant Field Values

MULTI_LEVEL_MIPMAP

public static final int MULTI_LEVEL_MIPMAP

Indicates that this Texture object has multiple images, one for each mipmap level. In this mode, there are log2(max(width,height))+1 separate images.

See Also:

Constant Field Values

INTENSITY

public static final int INTENSITY

Specifies Texture contains only Intensity values.

See Also:

Constant Field Values

LUMINANCE

public static final int LUMINANCE

Specifies Texture contains only luminance values.

See Also:

Constant Field Values

ALPHA

public static final int ALPHA

Specifies Texture contains only Alpha values.

See Also:

Constant Field Values

LUMINANCE_ALPHA

public static final int LUMINANCE_ALPHA

Specifies Texture contains Luminance and Alpha values.

See Also:

Constant Field Values

RGB

public static final int RGB

Specifies Texture contains Red, Green and Blue color values.

See Also:

Constant Field Values

RGBA

public static final int RGBA

Specifies Texture contains Red, Green, Blue color values and Alpha value.

See Also:

Constant Field Values

ANISOTROPIC_NONE

public static final int ANISOTROPIC_NONE

No anisotropic filter.

Since:

Java 3D 1.3

See Also:

setAnisotropicFilterMode(int), Constant Field Values

ANISOTROPIC_SINGLE_VALUE

public static final int ANISOTROPIC_SINGLE_VALUE

Uses the degree of anisotropy in both the minification and magnification filters.

Since:

Java 3D 1.3

See Also:

setAnisotropicFilterMode(int), Constant Field Values

Constructor Detail

Texture

public Texture()

Constructs a Texture object with default parameters. The default values are as follows:

enable flag : true
width : 0
height : 0
mipmap mode : BASE_LEVEL
format : RGB
boundary mode S : WRAP
boundary mode T : WRAP
min filter : BASE_LEVEL_POINT
mag filter : BASE_LEVEL_POINT
boundary color : black (0,0,0,0)
boundary width : 0
array of images : null
baseLevel : 0
maximumLevel : log2(max(width,height))
minimumLOD : -1000.0
maximumLOD : 1000.0
lod offset : (0, 0, 0)
anisotropic mode : ANISOTROPIC_NONE
anisotropic filter : 1.0
sharpen texture func: null
filter4 func: null

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

Texture

public Texture(int mipMapMode,
       int format,
       int width,
       int height)

Constructs an empty Texture object with specified mipMapMode, format, width and height. Defaults are used for all other parameters. If mipMapMode is set to BASE_LEVEL, then the image at level 0 must be set by the application (using either the setImage or setImages method). If mipMapMode is set to MULTI_LEVEL_MIPMAP, then images for levels Base Level through Maximum Level must be set. Note that a texture with a non-power-of-two width or height 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 of image at level 0.

height - height of image at level 0.

Throws:

IllegalArgumentException - if width or height are not greater than 0, or if an invalid format or mipMapMode is specified.

Texture

public Texture(int mipMapMode,
       int format,
       int width,
       int height,
       int boundaryWidth)

Constructs an empty Texture object with specified mipMapMode, format, width, height, and boundaryWidth. Defaults are used for all other parameters. If mipMapMode is set to BASE_LEVEL, then the image at level 0 must be set by the application (using either the setImage or setImages method). If mipMapMode is set to MULTI_LEVEL_MIPMAP, then images for levels Base Level through Maximum Level must be set. Note that a texture with a non-power-of-two width or height 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 of image at level 0. This does not include the width of the boundary.

height - 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:

IllegalArgumentException - if width or height are not greater than 0, if an invalid format or mipMapMode is specified, or if the boundaryWidth is < 0 or > 1

Since:

Java 3D 1.3

Method Detail

setBoundaryModeS

public void setBoundaryModeS(int boundaryModeS)

Sets the boundary mode for the S coordinate in this texture object.

Parameters:

boundaryModeS - the boundary mode for the S coordinate. One of: CLAMP, WRAP, CLAMP_TO_EDGE, or CLAMP_TO_BOUNDARY.

Throws:

RestrictedAccessException - if the method is called when this object is part of live or compiled scene graph.

IllegalArgumentException - if boundaryModeS is a value other than CLAMP, WRAP, CLAMP_TO_EDGE, or CLAMP_TO_BOUNDARY.

getBoundaryModeS

public int getBoundaryModeS()

Retrieves the boundary mode for the S coordinate.

Returns:

the current boundary mode for the S coordinate.

Throws:

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

setBoundaryModeT

public void setBoundaryModeT(int boundaryModeT)

Sets the boundary mode for the T coordinate in this texture object.

Parameters:

boundaryModeT - the boundary mode for the T coordinate. One of: CLAMP, WRAP, CLAMP_TO_EDGE, or CLAMP_TO_BOUNDARY.

Throws:

RestrictedAccessException - if the method is called when this object is part of live or compiled scene graph.

IllegalArgumentException - if boundaryModeT is a value other than CLAMP, WRAP, CLAMP_TO_EDGE, or CLAMP_TO_BOUNDARY.

getBoundaryModeT

public int getBoundaryModeT()

Retrieves the boundary mode for the T coordinate.

Returns:

the current boundary mode for the T coordinate.

Throws:

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

setMinFilter

public void setMinFilter(int minFilter)

Sets the minification filter function. This function is used when the pixel being rendered maps to an area greater than one texel.

Parameters:

minFilter - the minification filter. One of: FASTEST, NICEST, BASE_LEVEL_POINT, BASE_LEVEL_LINEAR, MULTI_LEVEL_POINT, MULTI_LEVEL_LINEAR, or FILTER4

Throws:

RestrictedAccessException - if the method is called when this object is part of live or compiled scene graph.

IllegalArgumentException - if minFilter is a value other than FASTEST, NICEST, BASE_LEVEL_POINT, BASE_LEVEL_LINEAR, MULTI_LEVEL_POINT, MULTI_LEVEL_LINEAR, or FILTER4.

See Also:

Canvas3D.queryProperties()

getMinFilter

public int getMinFilter()

Retrieves the minification filter.

Returns:

the current minification filter function.

Throws:

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

setMagFilter

public void setMagFilter(int magFilter)

Sets the magnification filter function. This function is used when the pixel being rendered maps to an area less than or equal to one texel.

Parameters:

magFilter - the magnification filter, one of: FASTEST, NICEST, BASE_LEVEL_POINT, BASE_LEVEL_LINEAR, LINEAR_SHARPEN, LINEAR_SHARPEN_RGB, LINEAR_SHARPEN_ALPHA, or FILTER4.

Throws:

RestrictedAccessException - if the method is called when this object is part of live or compiled scene graph.

IllegalArgumentException - if magFilter is a value other than FASTEST, NICEST, BASE_LEVEL_POINT, BASE_LEVEL_LINEAR, LINEAR_SHARPEN, LINEAR_SHARPEN_RGB, LINEAR_SHARPEN_ALPHA, or FILTER4.

See Also:

Canvas3D.queryProperties()

getMagFilter

public int getMagFilter()

Retrieves the magnification filter.

Returns:

the current magnification filter function.

Throws:

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)

Sets the image for a specified mipmap level. Note that the image size must be the correct size for the specified mipmap level. The image size of the base level image, that is level 0, must be the same size in each dimension (width, height, depth) as this texture, excluding the border, if any. Each successive mipmap level must be 1/2 the size of the previous level, such that size[n] = floor(size[n-1]/2), exluding the border.

Parameters:

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

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

Throws:

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

IllegalArgumentException - if an ImageComponent3D is used in a Texture2D object or if an ImageComponent2D is used in a Texture3D object.

IllegalArgumentException - if the image being set at this level is not the correct size for this level.

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

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

getImage

public ImageComponent getImage(int level)

Retrieves the image for a specified mipmap level.

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:

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

setImages

public void setImages(ImageComponent[] images)

Sets the array of images for all mipmap levels. Note that the image size of the base level image, images[0], must be the same size in each dimension (width, height, depth) as this texture, excluding the border, if any. Each successive mipmap level must be 1/2 the size of the previous level, such that size[n] = floor(size[n-1]/2), exluding the border.

Parameters:

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

Throws:

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

IllegalArgumentException - if an ImageComponent3D is used in a Texture2D object or if an ImageComponent2D is used in a Texture3D object.

IllegalArgumentException - if images.length is not equal to the total number of mipmap levels.

IllegalArgumentException - if the size of each dimension of the image at a given level in the images array is not the correct size.

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

IllegalSharingException - if this Texture 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.

Since:

Java 3D 1.2

getImages

public ImageComponent[] getImages()

Retrieves the array of images for all mipmap levels.

Returns:

the array of ImageComponent objects for this Texture.

Throws:

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

Since:

Java 3D 1.2

getFormat

public int getFormat()

Retrieves the format of this Texture object.

Returns:

the format of this Texture object.

Throws:

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

Since:

Java 3D 1.2

getWidth

public int getWidth()

Retrieves the width of this Texture object.

Returns:

the width of this Texture object.

Throws:

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

Since:

Java 3D 1.2

getHeight

public int getHeight()

Retrieves the height of this Texture object.

Returns:

the height of this Texture object.

Throws:

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

Since:

Java 3D 1.2

getBoundaryWidth

public int getBoundaryWidth()

Retrieves the width of the boundary of this Texture object.

Returns:

the width of the boundary of this Texture object.

Throws:

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

Since:

Java 3D 1.3

numMipMapLevels

public int numMipMapLevels()

Retrieves the number of mipmap levels needed for this Texture object.

Returns:

(maximum Level - base Level + 1) if mipMapMode is MULTI_LEVEL_MIPMAP; otherwise it returns 1.

Throws:

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

Since:

Java 3D 1.2

setMipMapMode

public void setMipMapMode(int mipMapMode)

Sets mipmap mode for texture mapping for this texture object.

Parameters:

mipMapMode - the new mipmap mode for this object. One of: BASE_LEVEL or MULTI_LEVEL_MIPMAP.

Throws:

RestrictedAccessException - if the method is called when this object is part of live or compiled scene graph.

IllegalArgumentException - if mipMapMode is a value other than BASE_LEVEL or MULTI_LEVEL_MIPMAP.

getMipMapMode

public int getMipMapMode()

Retrieves current mipmap mode.

Returns:

current mipmap mode of this texture object.

Throws:

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

setEnable

public void setEnable(boolean state)

Enables or disables texture mapping for this appearance component object.

Parameters:

state - true or false to enable or disable texture mapping

Throws:

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

getEnable

public boolean getEnable()

Retrieves the state of the texture enable flag.

Returns:

true if texture mapping is enabled, false if texture mapping is disabled

Throws:

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

setBoundaryColor

public void setBoundaryColor(javax.vecmath.Color4f boundaryColor)

Sets the texture boundary color for this texture object. The texture boundary color is used when boundaryModeS or boundaryModeT is set to CLAMP or CLAMP_TO_BOUNDARY and if texture boundary is not specified.

Parameters:

boundaryColor - the new texture boundary color.

Throws:

RestrictedAccessException - if the method is called when this object is part of live or compiled scene graph.

setBoundaryColor

public void setBoundaryColor(float r,
                    float g,
                    float b,
                    float a)

Sets the texture boundary color for this texture object. The texture boundary color is used when boundaryModeS or boundaryModeT is set to CLAMP or CLAMP_TO_BOUNDARY and if texture boundary is not specified.

Parameters:

r - the red component of the color.

g - the green component of the color.

b - the blue component of the color.

a - the alpha component of the color.

Throws:

RestrictedAccessException - if the method is called when this object is part of live or compiled scene graph.

getBoundaryColor

public void getBoundaryColor(javax.vecmath.Color4f boundaryColor)

Retrieves the texture boundary color for this texture object.

Parameters:

boundaryColor - the vector that will receive the current texture boundary color.

Throws:

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

setBaseLevel

public void setBaseLevel(int baseLevel)

Specifies the base level for this texture object.

Parameters:

baseLevel - index of the lowest defined mipmap level.

Throws:

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

IllegalArgumentException - if specified baseLevel < 0, or if baseLevel > maximumLevel

Since:

Java 3D 1.3

See Also:

Canvas3D.queryProperties()

getBaseLevel

public int getBaseLevel()

Retrieves the base level for this texture object.

Returns:

base level for this texture object.

Throws:

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

Since:

Java 3D 1.3

setMaximumLevel

public void setMaximumLevel(int maximumLevel)

Specifies the maximum level for this texture object.

Parameters:

maximumLevel - index of the highest defined mipmap level.

Throws:

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

IllegalArgumentException - if specified maximumLevel < baseLevel, or if maximumLevel > log2(max(width,height))

IllegalArgumentException - if mipMipMapMode is equal to BASE_LEVEL and maximumLevel is not equal to zero.

Since:

Java 3D 1.3

See Also:

Canvas3D.queryProperties()

getMaximumLevel

public int getMaximumLevel()

Retrieves the maximum level for this texture object.

Returns:

maximum level for this texture object.

Throws:

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

Since:

Java 3D 1.3

setMinimumLOD

public void setMinimumLOD(float minimumLod)

Specifies the minimum level-of-detail for this texture object.

Parameters:

minimumLod - the minimum level-of-detail.

Throws:

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

IllegalArgumentException - if specified lod > maximum lod

Since:

Java 3D 1.3

See Also:

Canvas3D.queryProperties()

getMinimumLOD

public float getMinimumLOD()

Retrieves the minimum level-of-detail for this texture object.

Returns:

the minimum level-of-detail

Throws:

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

Since:

Java 3D 1.3

setMaximumLOD

public void setMaximumLOD(float maximumLod)

Specifies the maximum level-of-detail for this texture object.

Parameters:

maximumLod - the maximum level-of-detail.

Throws:

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

IllegalArgumentException - if specified lod < minimum lod

Since:

Java 3D 1.3

See Also:

Canvas3D.queryProperties()

getMaximumLOD

public float getMaximumLOD()

Retrieves the maximum level-of-detail for this texture object.

Returns:

the maximum level-of-detail

Throws:

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

Since:

Java 3D 1.3

setLodOffset

public void setLodOffset(float s,
                float t,
                float r)

Specifies the LOD offset for this texture object.

Parameters:

s - the s component of the LOD offset

t - the t component of the LOD offset

r - the r component of the LOD offset

Throws:

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

Since:

Java 3D 1.3

See Also:

Canvas3D.queryProperties()

setLodOffset

public void setLodOffset(javax.vecmath.Tuple3f offset)

Specifies the LOD offset for this texture object.

Parameters:

offset - the LOD offset

Throws:

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

Since:

Java 3D 1.3

See Also:

Canvas3D.queryProperties()

getLodOffset

public void getLodOffset(javax.vecmath.Tuple3f offset)

Retrieves the LOD offset for this texture object.

Parameters:

offset - the vector that will receive the current LOD offset.

Throws:

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

Since:

Java 3D 1.3

setAnisotropicFilterMode

public void setAnisotropicFilterMode(int mode)

Specifies the anisotropic filter mode for this texture object.

Parameters:

mode - the anisotropic filter mode. One of ANISOTROPIC_NONE or ANISOTROPIC_SINGLE_VALUE.

Throws:

RestrictedAccessException - if the method is called when this object is part of live or compiled scene graph.

IllegalArgumentException - if mode is a value other than ANISOTROPIC_NONE or ANISOTROPIC_SINGLE_VALUE

Since:

Java 3D 1.3

See Also:

Canvas3D.queryProperties()

getAnisotropicFilterMode

public int getAnisotropicFilterMode()

Retrieves the anisotropic filter mode for this texture object.

Returns:

the currrent anisotropic filter mode of this texture object.

Throws:

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

Since:

Java 3D 1.3

setAnisotropicFilterDegree

public void setAnisotropicFilterDegree(float degree)

Specifies the degree of anisotropy to be used when the anisotropic filter mode specifies ANISOTROPIC_SINGLE_VALUE.

Parameters:

degree - degree of anisotropy

Throws:

RestrictedAccessException - if the method is called when this object is part of live or compiled scene graph.

IllegalArgumentException - if degree < 1.0 or degree > the maximum degree of anisotropy.

Since:

Java 3D 1.3

See Also:

Canvas3D.queryProperties()

getAnisotropicFilterDegree

public float getAnisotropicFilterDegree()

Retrieves the anisotropic filter degree for this texture object.

Returns:

the current degree of anisotropy of this texture object

Throws:

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

Since:

Java 3D 1.3

setSharpenTextureFunc

public void setSharpenTextureFunc(float[] lod,
                         float[] pts)

sets the sharpen texture LOD function for this texture object.

Parameters:

lod - array containing the level-of-detail values.

pts - array containing the function values for the corresponding level-of-detail values.

Throws:

IllegalStateException - if the length of lod does not match the length of pts

RestrictedAccessException - if the method is called when this object is part of live or compiled scene graph.

Since:

Java 3D 1.3

See Also:

Canvas3D.queryProperties()

setSharpenTextureFunc

public void setSharpenTextureFunc(javax.vecmath.Point2f[] pts)

sets the sharpen texture LOD function for this texture object. The Point2f x,y values are defined as follows: x is the lod value, y is the corresponding function value.

Parameters:

pts - array of Point2f containing the lod as well as the corresponding function value.

Throws:

RestrictedAccessException - if the method is called when this object is part of live or compiled scene graph.

Since:

Java 3D 1.3

See Also:

Canvas3D.queryProperties()

getSharpenTextureFuncPointsCount

public int getSharpenTextureFuncPointsCount()

Gets the number of points in the sharpen texture LOD function for this texture object.

Returns:

the number of points in the sharpen texture LOD function.

Throws:

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

Since:

Java 3D 1.3

getSharpenTextureFunc

public void getSharpenTextureFunc(float[] lod,
                         float[] pts)

Copies the array of sharpen texture LOD function points into the specified arrays. The arrays must be large enough to hold all the points.

Parameters:

lod - the array to receive the level-of-detail values.

pts - the array to receive the function values for the corresponding level-of-detail values.

Throws:

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

Since:

Java 3D 1.3

getSharpenTextureFunc

public void getSharpenTextureFunc(javax.vecmath.Point2f[] pts)

Copies the array of sharpen texture LOD function points including the lod values and the corresponding function values into the specified array. The array must be large enough to hold all the points. The individual array elements must be allocated by the caller as well.

Parameters:

pts - the array to receive the sharpen texture LOD function points

Throws:

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

Since:

Java 3D 1.3

setFilter4Func

public void setFilter4Func(float[] weights)

sets the filter4 function for this texture object.

Parameters:

weights - array containing samples of the filter4 function.

Throws:

IllegalArgumentException - if the length of weight < 4

RestrictedAccessException - if the method is called when this object is part of live or compiled scene graph.

Since:

Java 3D 1.3

See Also:

Canvas3D.queryProperties()

getFilter4FuncPointsCount

public int getFilter4FuncPointsCount()

Retrieves the number of filter4 function values for this texture object.

Returns:

the number of filter4 function values

Throws:

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

Since:

Java 3D 1.3

getFilter4Func

public void getFilter4Func(float[] weights)

Copies the array of filter4 function values into the specified array. The array must be large enough to hold all the values.

Parameters:

weights - the array to receive the function values.

Throws:

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

Since:

Java 3D 1.3