Class Texture3DAttribute

java.lang.Object

gaiasky.render.gdx.shader.attribute.Attribute

gaiasky.render.gdx.shader.attribute.Texture3DAttribute

All Implemented Interfaces:

Comparable<Attribute>

public class Texture3DAttribute
extends Attribute

Field Summary

Fields

Modifier and Type	Field	Description
float	depthThreshold	Minimum density for this slot to be treated as an occluder in the depth-only pre-pass (RenderGroup.VOLUME_DEPTH).
com.badlogic.gdx.graphics.g3d.utils.TextureDescriptor<com.badlogic.gdx.graphics.Texture3D>	occupancyDescription	The brick occupancy grid of the volume at this slot, if it has one: an R8 3D texture covering the same box, each texel the maximum density of the corresponding brick of voxels, built by VolumeTextureLoader.VolumeTextureParameter.occupancy.
float	offsetU
float	offsetV
float	offsetW
float	scaleU
float	scaleV
float	scaleW
final com.badlogic.gdx.graphics.g3d.utils.TextureDescriptor<com.badlogic.gdx.graphics.Texture3D>	textureDescription
static final int	Volume0
static final String	Volume0Alias
static final int	Volume1
static final String	Volume1Alias
static final int	Volume2
static final String	Volume2Alias
static final int	Volume3
static final String	Volume3Alias
VolumeType	volumeType	Storage format of the texture at this slot, propagated from VolumeTexture.type().

Fields inherited from class Attribute

index, type

Modifier and Type	Field	Description
final int	index
final Bits	type	The type of this attribute

Constructor Summary

Constructors

Modifier	Constructor	Description
	Texture3DAttribute(int index)
<T extends com.badlogic.gdx.graphics.Texture3D>	Texture3DAttribute(int index, com.badlogic.gdx.graphics.g3d.utils.TextureDescriptor<T> textureDescription)
<T extends com.badlogic.gdx.graphics.Texture3D>	Texture3DAttribute(int index, com.badlogic.gdx.graphics.g3d.utils.TextureDescriptor<T> textureDescription, float offsetU, float offsetV, float offsetW, float scaleU, float scaleV, float scaleW)
<T extends com.badlogic.gdx.graphics.Texture3D>	Texture3DAttribute(int index, com.badlogic.gdx.graphics.g3d.utils.TextureDescriptor<T> textureDescription, float offsetU, float offsetV, float offsetW, float scaleU, float scaleV, float scaleW, VolumeType volumeType)
	Texture3DAttribute(int index, com.badlogic.gdx.graphics.Texture3D texture)
	Texture3DAttribute(int index, com.badlogic.gdx.graphics.Texture3D texture, VolumeType volumeType)
	Texture3DAttribute(Texture3DAttribute copyFrom)

Method Summary

Modifier and Type	Method	Description
int	compareTo(Attribute o)
Attribute	copy()
int	hashCode()

Methods inherited from class Attribute

equals, equals, getAttributeAlias, getAttributeIndex, getAttributeIndex, getAttributeType, getIndex, getNumAttributes, getTypes, has, register, toString

Modifier and Type	Method	Description
protected boolean	equals(Attribute other)
boolean	equals(Object obj)
static String	getAttributeAlias(Bits type)
static int	getAttributeIndex(Bits type)
static int	getAttributeIndex(String alias)
static Bits	getAttributeType(String alias)
protected static int	getIndex(long oldType)
static int	getNumAttributes()
static com.badlogic.gdx.utils.Array<String>	getTypes()
boolean	has(int index)
protected static int	register(String alias)	Call this method to register a custom attribute type, see the wiki for an example.
String	toString()

Methods inherited from class Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Field Details

Volume0Alias

public static final String Volume0Alias

See Also:

• Constant Field Values

Volume0

public static final int Volume0

Volume1Alias

public static final String Volume1Alias

See Also:

• Constant Field Values

Volume1

public static final int Volume1

Volume2Alias

public static final String Volume2Alias

See Also:

• Constant Field Values

Volume2

public static final int Volume2

Volume3Alias

public static final String Volume3Alias

See Also:

• Constant Field Values

Volume3

public static final int Volume3

textureDescription

public final com.badlogic.gdx.graphics.g3d.utils.TextureDescriptor<com.badlogic.gdx.graphics.Texture3D> textureDescription

offsetU

public float offsetU

offsetV

public float offsetV

offsetW

public float offsetW

scaleU

public float scaleU

scaleV

public float scaleV

scaleW

public float scaleW

volumeType

public VolumeType volumeType

Storage format of the texture at this slot, propagated from VolumeTexture.type(). It tells the shader what the sampled texel means: a density-only (R8) volume reads its density from .r, while a color+density (RGBA) volume reads colour from .rgb and density from .a. Defaults to VolumeType.DENSITY, so a slot populated without an explicit type keeps the legacy density-only behaviour.

depthThreshold

public float depthThreshold

Minimum density for this slot to be treated as an occluder in the depth-only pre-pass (RenderGroup.VOLUME_DEPTH). A sample of this volume contributes to the written depth only where its density exceeds this value.

Zero (the default) or negative means the slot never occludes: it still renders, but nothing can be hidden behind it. That is the right default for a volume that only emits (gas): opacity is the job of the absorbing volume, and a faint emissive shell must not punch an opaque hole in the star field.

The whole depth pass is skipped for a volume whose scene sets "writeDepth": false.

occupancyDescription

public com.badlogic.gdx.graphics.g3d.utils.TextureDescriptor<com.badlogic.gdx.graphics.Texture3D> occupancyDescription

The brick occupancy grid of the volume at this slot, if it has one: an R8 3D texture covering the same box, each texel the maximum density of the corresponding brick of voxels, built by VolumeTextureLoader.VolumeTextureParameter.occupancy. A zero texel means every sample in that brick would read a zero, so the shader's march jumps the whole brick.

Null means the slot has no occupancy grid, and the shader is bound a 1x1x1 volume of ones instead - see VolumeTexture.occupancyDescriptor(TextureDescriptor). This is deliberately not part of hashCode() or compareTo(Attribute): it is derived from textureDescription, so two attributes with the same texture always have the same grid, and comparing it would only ever repeat the texture comparison.

Constructor Details

Texture3DAttribute

public Texture3DAttribute(int index)

Texture3DAttribute

public <T extends com.badlogic.gdx.graphics.Texture3D>
Texture3DAttribute(int index,
 com.badlogic.gdx.graphics.g3d.utils.TextureDescriptor<T> textureDescription)

Texture3DAttribute

public <T extends com.badlogic.gdx.graphics.Texture3D>
Texture3DAttribute(int index,
 com.badlogic.gdx.graphics.g3d.utils.TextureDescriptor<T> textureDescription,
 float offsetU,
 float offsetV,
 float offsetW,
 float scaleU,
 float scaleV,
 float scaleW)

Texture3DAttribute

public <T extends com.badlogic.gdx.graphics.Texture3D>
Texture3DAttribute(int index,
 com.badlogic.gdx.graphics.g3d.utils.TextureDescriptor<T> textureDescription,
 float offsetU,
 float offsetV,
 float offsetW,
 float scaleU,
 float scaleV,
 float scaleW,
 VolumeType volumeType)

Texture3DAttribute

public Texture3DAttribute(int index,
 com.badlogic.gdx.graphics.Texture3D texture)

Texture3DAttribute

public Texture3DAttribute(int index,
 com.badlogic.gdx.graphics.Texture3D texture,
 VolumeType volumeType)

Texture3DAttribute

public Texture3DAttribute(Texture3DAttribute copyFrom)

Method Details

copy

public Attribute copy()

Specified by:

copy in class Attribute

Returns:

An exact copy of this attribute

hashCode

public int hashCode()

Overrides:

hashCode in class Attribute

compareTo

public int compareTo(Attribute o)