Module gpuFlux

Package de.grogra.gpuflux.imp3d.objects

Class SpectralCIELighting

java.lang.Object

de.grogra.graph.impl.Edge

de.grogra.graph.impl.Node

de.grogra.imp3d.objects.Null

de.grogra.imp3d.objects.CIELighting

de.grogra.gpuflux.imp3d.objects.SpectralCIELighting

All Implemented Interfaces:

Transformation, Pickable, Renderable, Manageable, PersistenceCapable, Shareable, UserFields, XObject, Map, Serializable

public class SpectralCIELighting
extends CIELighting

A GPU Flux spectral variant of CIELighting that uses physically accurate spectral power distributions (SPDs) for sky and sun lights.

Overrides createPerezSunSky() to return a SpectralPerezSunSky with SPDs appropriate for the sky condition:

• CIE types 1–9 (overcast / mixed) — CIE D65 (daylight, ~6504 K) for sky; D65 for sun beam.
• CIE types 10–15 (clear) — CIE D55 (~5500 K) for diffuse sky; blackbody 5778 K for direct sun beam.

The same SPD rules apply when CIELighting.inputMode is CIELighting.CLOUD_COVER or CIELighting.TURBIDITY: clear skies (low cloud cover / low turbidity) use D55 + solar blackbody; overcast conditions use D65 throughout.

Example XL usage with GPU Flux:

   Axiom ==> new SpectralCIELighting(CIE_CLEAR, 52.0f, 172, 12, 0);
 

Author:

MH at YNL 2026

See Also:

• CIELighting
• SpectralPerezSunSky
• Serialized Form

Nested Class Summary

Nested classes/interfaces inherited from class de.grogra.graph.impl.Node

Node.AccessorBridge, Node.FieldAttributeAccessor, Node.NType

Nested classes/interfaces inherited from interface de.grogra.util.Map

Map.Chain

Field Summary

Fields

Modifier and Type	Field	Description
static final Node.NType	$TYPE

Fields inherited from class de.grogra.imp3d.objects.CIELighting

CIE_CLEAR, CIE_OVERCAST, CIE_PARTLY_CLOUDY, CIE_TYPE, cieType, cieType$FIELD, CLOUD_COVER, cloudCover, cloudCover$FIELD, dayOfYear, dayOfYear$FIELD, distance, distance$FIELD, hourOfDay, hourOfDay$FIELD, inputMode, inputMode$FIELD, latitude, latitude$FIELD, minuteOfHour, minuteOfHour$FIELD, turbidity, TURBIDITY, turbidity$FIELD

Fields inherited from class de.grogra.imp3d.objects.Null

transform, transform$FIELD, TRANSFORMING_MASK, transforming$FIELD, USED_BITS

Fields inherited from class de.grogra.graph.impl.Node

ADDITIONAL_FIELDS, bits, DELETED, EXPLICIT_EXTENT_INDEX, explicitExtentIndex$FIELD, EXTENT_BIT, EXTENT_MASK, extentIndex$FIELD, extentTail$FIELD, HAS_OBSERVERS, IMPORT_NODE_EXTENT_INDEX, IS_INTERPRETIVE, isInterpretive$FIELD, LAST_EXTENT_INDEX, LAST_VISIBLE_EXTENT_INDEX, layer$FIELD, MARK, mark$FIELD, MAX_RESOLUTION, MIME_TYPE, MIN_RESOLUTION, MIN_UNUSED_SPECIAL_OF_SOURCE, MIN_UNUSED_SPECIAL_OF_TARGET, name$FIELD, RESOLUTION_BIT, RESOLUTION_MASK, resolution$FIELD, TYPE_EXTENT_INDEX

Fields inherited from interface de.grogra.util.Map

DEFAULT_VALUE, EMPTY_MAP

Constructor Summary

Constructors

Constructor	Description
SpectralCIELighting()	Creates a SpectralCIELighting node with CIE Type 7 (partly cloudy).
SpectralCIELighting(int cieType, float latitude, int dayOfYear, int hourOfDay, int minuteOfHour)	Creates a SpectralCIELighting node for a specific CIE sky type.

Method Summary

Modifier and Type	Method	Description
protected PerezSunSky	createPerezSunSky()	Returns a SpectralPerezSunSky with SPDs appropriate for the current sky condition.
protected Node.NType	getNTypeImpl()	This method returns the Node.NType which describes the managed fields of the class of this node.
protected Node	newInstance()	This method returns a new instance of the class of this node.

Methods inherited from class de.grogra.imp3d.objects.CIELighting

buildSkyDome, draw, getCieType, getCloudCover, getDayOfYear, getDistance, getHourOfDay, getInputMode, getLatitude, getMinuteOfHour, getTurbidity, pick, setCieType, setCIEType, setCloudCover, setDayOfYear, setDistance, setFromCloudCover, setFromTurbidity, setHourOfDay, setInputMode, setLatitude, setMinuteOfHour, setTurbidity, update

Methods inherited from class de.grogra.imp3d.objects.Null

getLocalTransformation, getTransform, getTransformMatrix, getTranslation, isTransforming, postTransform, preTransform, setRotation, setScale, setTransform, setTransform, setTransform, setTransform, setTransform, setTransform, setTransform, setTransform, setTransforming, setTranslation

Methods inherited from class de.grogra.graph.impl.Node

addEdgeBitsTo, addReference, appendBranchNode, appendBranchNode, appendReferencesTo, clone, clone, cloneGraph, dump, dumpTree, dup, dup, dupFrom, dupnew, dupUnmanagedFields, edgeChanged, fieldModified, findAdjacent, findRefinementType, get, getAccessor, getAccessor, getAttributes, getAxisParent, getBoolean, getBranch, getBranchLength, getBranchNode, getBranchTail, getByte, getChar, getCommonAncestor, getCurrentGraphState, getDirectChildCount, getDouble, getEdgeAttributeAccessor, getEdgeAttributes, getEdgeBitsTo, getEdgeTo, getExtentIndex, getFirst, getFirstEdge, getFloat, getGraph, getId, getIgnored, getIndex, getInstantiator, getInt, getLayer, getLong, getManageableType, getName, getNeighbor, getNext, getNType, getObject, getOrCreateEdgeTo, getOrNull, getPersistenceManager, getPredecessor, getProvider, getResolution, getShort, getSource, getStamp, getSuccessor, getSymbol, getSymbolColor, getTarget, getTransaction, getUserField, getUserFieldCount, getXClass, getXData, hasName, initProvider, initXClass, insertBranchNode, insertBranchNode, instantiateGraph, isAncestorOf, isDirection, isEncoarseOf, isExplicitExtentIndex, isManagingInstance, isMarked, isRoot, isSource, isTarget, manageableReadResolve, manageableWriteReplace, paramString, removeAll, removeEdgeBitsTo, removeFromChain, removeFromChain, removeReference, setBranch, setBranch, setExplicitExtentIndex, setExtentIndex, setGraphForDeserialization, setIgnored, setLayer, setMark, setName, setResolution, setSuccessor, setSuccessor, specialEdgeAdded, specialEdgeRefModified, specialEdgeRemoved, toString, writeReplace

Methods inherited from class de.grogra.graph.impl.Edge

addEdgeBits, getBitMark, getEdgeBits, getEdgeKeys, getObjectMark, getSpecialEdgeDescriptor, parseEdgeKeys, remove, removeEdgeBits, setBitMark, setEdgeBits, setObjectMark, testEdgeBits

Methods inherited from class java.lang.Object

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

Methods inherited from interface de.grogra.persistence.PersistenceCapable

getBitMark, getObjectMark, setBitMark, setObjectMark

Field Details

$TYPE

public static final Node.NType $TYPE

Constructor Details

SpectralCIELighting

public SpectralCIELighting()

Creates a SpectralCIELighting node with CIE Type 7 (partly cloudy).

SpectralCIELighting

public SpectralCIELighting(int cieType,
 float latitude,
 int dayOfYear,
 int hourOfDay,
 int minuteOfHour)

Creates a SpectralCIELighting node for a specific CIE sky type.

Parameters:

cieType - CIE sky type 1–15

latitude - geographic latitude [degrees N]

dayOfYear - day of year [1..365]

hourOfDay - hour of day [0..23]

minuteOfHour - minute [0..59]

Method Details

createPerezSunSky

protected PerezSunSky createPerezSunSky()

Returns a SpectralPerezSunSky with SPDs appropriate for the current sky condition.

Clear skies (CIE types 10–15, cloud cover < 0.4, or turbidity < 3.5) receive CIE D55 for the diffuse sky and a 5778 K blackbody for the direct sun. All other conditions use CIE D65.

Overrides:

createPerezSunSky in class CIELighting

getNTypeImpl

protected Node.NType getNTypeImpl()

Description copied from class: Node

This method returns the Node.NType which describes the managed fields of the class of this node. This method has to be implemented in every concrete subclass.

Overrides:

getNTypeImpl in class CIELighting

Returns:

type describing the managed fields of the class of this node

newInstance

protected Node newInstance()

Description copied from class: Node

This method returns a new instance of the class of this node. This method has to be implemented in every concrete subclass.

Overrides:

newInstance in class CIELighting

Returns:

new instance of class of this node