javax.media.j3d
Class Material

java.lang.Object
  |
  +--javax.media.j3d.SceneGraphObject
        |
        +--javax.media.j3d.NodeComponent
              |
              +--javax.media.j3d.Material

public class Material

extends NodeComponent

The Material object defines the appearance of an object under illumination. If the Material object in an Appearance object is null, lighting is disabled for all nodes that use that Appearance object.

The properties that can be set for a Material object are:

• Ambient color - the ambient RGB color reflected off the surface of the material. The range of values is 0.0 to 1.0. The default ambient color is (0.2, 0.2, 0.2).

• Diffuse color - the RGB color of the material when illuminated. The range of values is 0.0 to 1.0. The default diffuse color is (1.0, 1.0, 1.0).

• Specular color - the RGB specular color of the material (highlights). The range of values is 0.0 to 1.0. The default specular color is (1.0, 1.0, 1.0).

• Emissive color - the RGB color of the light the material emits, if any. The range of values is 0.0 to 1.0. The default emissive color is (0.0, 0.0, 0.0).

• Shininess - the material's shininess, in the range [1.0, 128.0] with 1.0 being not shiny and 128.0 being very shiny. Values outside this range are clamped. The default value for the material's shininess is 64.

• Color target - the material color target for per-vertex colors, one of: AMBIENT, EMISSIVE, DIFFUSE, SPECULAR, or AMBIENT_AND_DIFFUSE. The default target is DIFFUSE.

The Material object also enables or disables lighting.

Field Summary

static int	ALLOW_COMPONENT_READ For material object, specifies that Material allows reading individual component field information.
static int	ALLOW_COMPONENT_WRITE For material object, specifies that Material allows reading individual component field information.
static int	AMBIENT Specifies that per-vertex colors replace the ambient material color.
static int	AMBIENT_AND_DIFFUSE Specifies that per-vertex colors replace both the ambient and the diffuse material color.
static int	DIFFUSE Specifies that per-vertex colors replace the diffuse material color.
static int	EMISSIVE Specifies that per-vertex colors replace the emissive material color.
static int	SPECULAR Specifies that per-vertex colors replace the specular material color.

Constructor Summary

Material()
Constructs and initializes a Material object using default parameters.

Material(Color3f ambientColor, Color3f emissiveColor, Color3f diffuseColor, Color3f specularColor, float shininess)
Constructs and initializes a new material object using the specified parameters.

Method Summary

NodeComponent	cloneNodeComponent() Deprecated. replaced with cloneNodeComponent(boolean forceDuplicate)
void	getAmbientColor(Color3f color) Retrieves this material's ambient color.
int	getColorTarget() Retrieves the current color target for this material.
void	getDiffuseColor(Color3f color) Retrieves this material's diffuse color.
void	getEmissiveColor(Color3f color) Retrieves this material's emissive color and stores it in the argument provided.
boolean	getLightingEnable() Retrieves the state of the lighting enable flag.
float	getShininess() Retrieves this material's shininess.
void	getSpecularColor(Color3f color) Retrieves this material's specular color.
void	setAmbientColor(Color3f color) Sets this material's ambient color.
void	setAmbientColor(float r, float g, float b) Sets this material's ambient color.
void	setColorTarget(int colorTarget) Sets the color target for per-vertex colors.
void	setDiffuseColor(Color3f color) Sets this material's diffuse color.
void	setDiffuseColor(float r, float g, float b) Sets this material's diffuse color.
void	setDiffuseColor(float r, float g, float b, float a) Sets this material's diffuse color plus alpha.
void	setEmissiveColor(Color3f color) Sets this material's emissive color.
void	setEmissiveColor(float r, float g, float b) Sets this material's emissive color.
void	setLightingEnable(boolean state) Enables or disables lighting for this appearance component object.
void	setShininess(float shininess) Sets this material's shininess.
void	setSpecularColor(Color3f color) Sets this material's specular color.
void	setSpecularColor(float r, float g, float b) Sets this material's specular color.
java.lang.String	toString() Returns a String representation of this Materials values.

Methods inherited from class javax.media.j3d.NodeComponent

cloneNodeComponent, duplicateNodeComponent, duplicateNodeComponent, getDuplicateOnCloneTree, setDuplicateOnCloneTree

Methods inherited from class javax.media.j3d.SceneGraphObject

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

Methods inherited from class java.lang.Object

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

Field Detail

ALLOW_COMPONENT_READ

public static final int ALLOW_COMPONENT_READ

For material object, specifies that Material allows reading individual component field information.

See Also:

Constant Field Values

ALLOW_COMPONENT_WRITE

public static final int ALLOW_COMPONENT_WRITE

For material object, specifies that Material allows reading individual component field information.

See Also:

Constant Field Values

AMBIENT

public static final int AMBIENT

Specifies that per-vertex colors replace the ambient material color.

Since:

Java 3D 1.3

See Also:

setColorTarget(int), Constant Field Values

EMISSIVE

public static final int EMISSIVE

Specifies that per-vertex colors replace the emissive material color.

Since:

Java 3D 1.3

See Also:

setColorTarget(int), Constant Field Values

DIFFUSE

public static final int DIFFUSE

Specifies that per-vertex colors replace the diffuse material color. This is the default target.

Since:

Java 3D 1.3

See Also:

setColorTarget(int), Constant Field Values

SPECULAR

public static final int SPECULAR

Specifies that per-vertex colors replace the specular material color.

Since:

Java 3D 1.3

See Also:

setColorTarget(int), Constant Field Values

AMBIENT_AND_DIFFUSE

public static final int AMBIENT_AND_DIFFUSE

Specifies that per-vertex colors replace both the ambient and the diffuse material color.

Since:

Java 3D 1.3

See Also:

setColorTarget(int), Constant Field Values

Constructor Detail

Material

public Material()

Constructs and initializes a Material object using default parameters. The default values are as follows:

lighting enable : true
ambient color : (0.2, 0.2, 0.2)
emmisive color : (0.0, 0.0, 0.0)
diffuse color : (1.0, 1.0, 1.0)
specular color : (1.0, 1.0, 1.0)
shininess : 64
color target : DIFFUSE

Material

public Material(Color3f ambientColor,
                Color3f emissiveColor,
                Color3f diffuseColor,
                Color3f specularColor,
                float shininess)

Constructs and initializes a new material object using the specified parameters. Lighting is enabled by default.

Parameters:

ambientColor - the material's ambient color

emissiveColor - the material's emissive color

diffuseColor - the material's diffuse color when illuminated by a light

specularColor - the material's specular color when illuminated to generate a highlight

shininess - the material's shininess in the range [1.0, 128.0] with 1.0 being not shiny and 128.0 being very shiny. Values outside this range are clamped.

Method Detail

setAmbientColor

public void setAmbientColor(Color3f color)

Sets this material's ambient color. This specifies how much ambient light is reflected by the surface. The ambient color in this Material object may be overridden by per-vertex colors in some cases. If vertex colors are present in the geometry, and lighting is enabled, and the colorTarget is either AMBIENT or AMBIENT_AND_DIFFUSE, and vertex colors are not being ignored, then the vertex colors are used in place of this Material's ambient color in the lighting equation.

Parameters:

color - the material's ambient color

Throws:

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

See Also:

RenderingAttributes.setIgnoreVertexColors(boolean), setColorTarget(int)

setAmbientColor

public void setAmbientColor(float r,
                            float g,
                            float b)

Sets this material's ambient color. This specifies how much ambient light is reflected by the surface. The ambient color in this Material object may be overridden by per-vertex colors in some cases. If vertex colors are present in the geometry, and lighting is enabled, and the colorTarget is either AMBIENT or AMBIENT_AND_DIFFUSE, and vertex colors are not being ignored, then the vertex colors are used in place of this Material's ambient color in the lighting equation.

Parameters:

r - the new ambient color's red component

g - the new ambient color's green component

b - the new ambient color's blue component

Throws:

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

See Also:

RenderingAttributes.setIgnoreVertexColors(boolean), setColorTarget(int)

getAmbientColor

public void getAmbientColor(Color3f color)

Retrieves this material's ambient color.

Parameters:

color - that will contain the material's ambient color

Throws:

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

setEmissiveColor

public void setEmissiveColor(Color3f color)

Sets this material's emissive color. This is the color of light, if any, that the material emits. The emissive color in this Material object may be overridden by per-vertex colors in some cases. If vertex colors are present in the geometry, and lighting is enabled, and the colorTarget is EMISSIVE, and vertex colors are not being ignored, then the vertex colors are used in place of this Material's emissive color in the lighting equation.

Parameters:

color - the new emissive color

Throws:

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

See Also:

RenderingAttributes.setIgnoreVertexColors(boolean), setColorTarget(int)

setEmissiveColor

public void setEmissiveColor(float r,
                             float g,
                             float b)

Sets this material's emissive color. This is the color of light, if any, that the material emits. The emissive color in this Material object may be overridden by per-vertex colors in some cases. If vertex colors are present in the geometry, and lighting is enabled, and the colorTarget is EMISSIVE, and vertex colors are not being ignored, then the vertex colors are used in place of this Material's emissive color in the lighting equation.

Parameters:

r - the new emissive color's red component

g - the new emissive color's green component

b - the new emissive color's blue component

Throws:

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

See Also:

RenderingAttributes.setIgnoreVertexColors(boolean), setColorTarget(int)

getEmissiveColor

public void getEmissiveColor(Color3f color)

Retrieves this material's emissive color and stores it in the argument provided.

Parameters:

color - the vector that will receive this material's emissive color

Throws:

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

setDiffuseColor

public void setDiffuseColor(Color3f color)

Sets this material's diffuse color. This is the color of the material when illuminated by a light source. The diffuse color in this Material object may be overridden by per-vertex colors in some cases. If vertex colors are present in the geometry, and lighting is enabled, and the colorTarget is either DIFFUSE or AMBIENT_AND_DIFFUSE, and vertex colors are not being ignored, then the vertex colors are used in place of this Material's diffuse color in the lighting equation.

Parameters:

color - the new diffuse color

Throws:

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

See Also:

RenderingAttributes.setIgnoreVertexColors(boolean), setColorTarget(int)

setDiffuseColor

public void setDiffuseColor(float r,
                            float g,
                            float b)

Sets this material's diffuse color. This is the color of the material when illuminated by a light source. The diffuse color in this Material object may be overridden by per-vertex colors in some cases. If vertex colors are present in the geometry, and lighting is enabled, and the colorTarget is either DIFFUSE or AMBIENT_AND_DIFFUSE, and vertex colors are not being ignored, then the vertex colors are used in place of this Material's diffuse color in the lighting equation.

Parameters:

r - the new diffuse color's red component

g - the new diffuse color's green component

b - the new diffuse color's blue component

Throws:

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

See Also:

RenderingAttributes.setIgnoreVertexColors(boolean), setColorTarget(int)

setDiffuseColor

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

Sets this material's diffuse color plus alpha. This is the color of the material when illuminated by a light source. The diffuse color in this Material object may be overridden by per-vertex colors in some cases. If vertex colors are present in the geometry, and lighting is enabled, and the colorTarget is either DIFFUSE or AMBIENT_AND_DIFFUSE, and vertex colors are not being ignored, then the vertex colors are used in place of this Material's diffuse color in the lighting equation.

Parameters:

r - the new diffuse color's red component

g - the new diffuse color's green component

b - the new diffuse color's blue component

a - the alpha component used to set transparency

Throws:

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

See Also:

RenderingAttributes.setIgnoreVertexColors(boolean), setColorTarget(int)

getDiffuseColor

public void getDiffuseColor(Color3f color)

Retrieves this material's diffuse color.

Parameters:

color - the vector that will receive this material's diffuse color

Throws:

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

setSpecularColor

public void setSpecularColor(Color3f color)

Sets this material's specular color. This is the specular highlight color of the material. The specular color in this Material object may be overridden by per-vertex colors in some cases. If vertex colors are present in the geometry, and lighting is enabled, and the colorTarget is SPECULAR, and vertex colors are not being ignored, then the vertex colors are used in place of this Material's specular color in the lighting equation.

Parameters:

color - the new specular color

Throws:

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

See Also:

RenderingAttributes.setIgnoreVertexColors(boolean), setColorTarget(int)

setSpecularColor

public void setSpecularColor(float r,
                             float g,
                             float b)

Sets this material's specular color. This is the specular highlight color of the material. The specular color in this Material object may be overridden by per-vertex colors in some cases. If vertex colors are present in the geometry, and lighting is enabled, and the colorTarget is SPECULAR, and vertex colors are not being ignored, then the vertex colors are used in place of this Material's specular color in the lighting equation.

Parameters:

r - the new specular color's red component

g - the new specular color's green component

b - the new specular color's blue component

Throws:

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

See Also:

RenderingAttributes.setIgnoreVertexColors(boolean), setColorTarget(int)

getSpecularColor

public void getSpecularColor(Color3f color)

Retrieves this material's specular color.

Parameters:

color - the vector that will receive this material's specular color

Throws:

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

setShininess

public void setShininess(float shininess)

Sets this material's shininess. This specifies a material specular scattering exponent, or shininess. It takes a floating point number in the range [1.0, 128.0] with 1.0 being not shiny and 128.0 being very shiny. Values outside this range are clamped.

Parameters:

shininess - the material's shininess

Throws:

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

getShininess

public float getShininess()

Retrieves this material's shininess.

Returns:

the material's shininess

Throws:

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

setLightingEnable

public void setLightingEnable(boolean state)

Enables or disables lighting for this appearance component object.

Parameters:

state - true or false to enable or disable lighting

Throws:

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

getLightingEnable

public boolean getLightingEnable()

Retrieves the state of the lighting enable flag.

Returns:

true if lighting is enabled, false if lighting is disabled

Throws:

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

setColorTarget

public void setColorTarget(int colorTarget)

Sets the color target for per-vertex colors. When lighting is enabled and per-vertex colors are present (and not ignored) in the geometry for a given Shape3D node, those per-vertex colors are used in place of the specified material color(s) for this Material object. The color target is ignored when lighting is disabled or when per-vertex colors are not used. The ColorInterpolator behavior also uses the color target to determine which color in the associated Material is modified. The default target is DIFFUSE.

Parameters:

colorTarget - one of: AMBIENT, EMISSIVE, DIFFUSE, SPECULAR, or AMBIENT_AND_DIFFUSE.

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:

RenderingAttributes.setIgnoreVertexColors(boolean), ColorInterpolator

getColorTarget

public int getColorTarget()

Retrieves the current color target for this material.

Returns:

one of: AMBIENT, EMISSIVE, DIFFUSE, SPECULAR, or AMBIENT_AND_DIFFUSE.

Throws:

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

Since:

Java 3D 1.3

toString

public java.lang.String toString()

Returns a String representation of this Materials values. If the scene graph is live only those values with their Capability read bit set will be displayed.

Overrides:

toString in class java.lang.Object

cloneNodeComponent

public NodeComponent cloneNodeComponent()

Deprecated. replaced with cloneNodeComponent(boolean forceDuplicate)

Overrides:

cloneNodeComponent in class NodeComponent