com.openinventor.inventor.nodes

Class SoLightModel

java.lang.Object

com.openinventor.inventor.Inventor

com.openinventor.inventor.misc.SoBase

com.openinventor.inventor.fields.SoFieldContainer

com.openinventor.inventor.nodes.SoNode

com.openinventor.inventor.nodes.SoLightModel

All Implemented Interfaces:

SafeDisposable

public class SoLightModel
extends SoNode

Node that defines the lighting model to use when rendering. This node defines the lighting model to be used when rendering subsequent shapes. The lighting model is specified in the model field.

Lighting is enabled by default (default model is PHONG). When lighting is enabled, there must be light nodes (e.g. SoDirectionalLight) in the scene graph for objects to be easily visible. When using the Open Inventor viewer classes (e.g. SoWinExaminerViewer), the viewer will create a "headlight" (directional light attached to the camera) if no other light nodes exist when setSceneGraph() is called.

When model is set to BASE_COLOR, the OpenGL lighting computation is disabled for subsequent shapes. This can be useful for annotation, data visualization and other special cases.

By default OpenGL only computes lighting for the "front" face of geometry, so the back face of the geometry will be dark. The front face is determined by the normal vector, if specified, or by the vertex ordering (see SoShapeHints) if normals are computed by Open Inventor. To enable "two sided" lighting (lighting both front and back faces) see SoShapeHints.

VolumeViz:

• SoLightModel controls lighting for most VolumeViz shapes, but not for SoVolumeRender. Lighting for volume rendering is controlled by the SoVolumeRenderingQuality node.
• Two sided lighting is automatically enabled for "slice" shapes, such as SoOrthoSlice.

File format/default:

LightModel {

model

PHONG

}

Action behavior:

SoGLRenderAction, SoCallbackAction
Sets the current lighting model in the state.

See also:

SoBaseColor, SoEnvironment, SoLight, SoMaterial

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	SoLightModel.Models Lighting model.

Nested classes/interfaces inherited from class com.openinventor.inventor.Inventor

Inventor.ConstructorCommand

Field Summary

Fields

Modifier and Type	Field and Description
static int	BASE_COLOR Deprecated. Use SoLightModel.Models.BASE_COLOR instead.
SoSFEnum<SoLightModel.Models>	model Lighting model to use .
static int	PHONG Deprecated. Use SoLightModel.Models.PHONG instead.

Fields inherited from class com.openinventor.inventor.Inventor

VERBOSE_LEVEL, ZeroHandle

Constructor Summary

Constructors

Constructor and Description
SoLightModel() Creates a light model node with default settings.

Method Summary

Methods inherited from class com.openinventor.inventor.nodes.SoNode

affectsState, callback, copy, copy, distribute, doAction, getAlternateRep, getBoundingBox, getByName, getMatrix, getPrimitiveCount, getRenderUnitID, GLRender, GLRenderBelowPath, GLRenderInPath, GLRenderOffPath, grabEventsCleanup, grabEventsSetup, handleEvent, isBoundingBoxIgnoring, isOverride, pick, rayPick, search, setOverride, touch, write

Methods inherited from class com.openinventor.inventor.fields.SoFieldContainer

copyFieldValues, copyFieldValues, enableNotify, fieldsAreEqual, get, getAllFields, getEventIn, getEventOut, getField, getFieldName, hasDefaultValues, isNotifyEnabled, set, setToDefaults

Methods inherited from class com.openinventor.inventor.misc.SoBase

dispose, getEXTERNPROTO, getName, getPROTO, isDisposable, isSynchronizable, setName, setSynchronizable

Methods inherited from class com.openinventor.inventor.Inventor

getAddress, getNativeResourceHandle, startInternalThreads, stopInternalThreads

Methods inherited from class java.lang.Object

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

Field Detail

BASE_COLOR

@Deprecated
public static final int BASE_COLOR

Deprecated. Use SoLightModel.Models.BASE_COLOR instead.

PHONG

@Deprecated
public static final int PHONG

Deprecated. Use SoLightModel.Models.PHONG instead.

model

public final SoSFEnum<SoLightModel.Models> model

Lighting model to use . Default is PHONG.

Constructor Detail

SoLightModel

public SoLightModel()

Creates a light model node with default settings.