<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE X3D PUBLIC "ISO//Web3D//DTD X3D 3.0//EN" "https://www.web3d.org/specifications/x3d-3.0.dtd">
<X3D profile='Interactive'  version='3.0 xmlns:xsd='http://www.w3.org/2001/XMLSchema-instance' xsd:noNamespaceSchemaLocation =' https://www.web3d.org/specifications/x3d-3.0.xsd ' >
<head>
<meta name='titlecontent='Figure20_10BlinkingRedLightbulb.x3d'/>
<meta name='descriptioncontent='A blinking lightbulb showing multiple lighting effects.'/>
<meta name='creatorcontent='Figure 20.10, The VRML 2.0 Sourcebook, Copyright [1997] By Andrea L. Ames, David R. Nadeau, and John L. Moreland'/>
<meta name='referencecontent=' http://www.wiley.com/legacy/compbooks/vrml2sbk/ch20/20fig10.htm '/>
<meta name='translatorcontent='Don Brutzman'/>
<meta name='createdcontent='8 September 2000'/>
<meta name='modifiedcontent='20 October 2019'/>
<meta name=' warning content=' Xj3D run-time exception '/>
<meta name='identifiercontent=' https://www.web3d.org/x3d/content/examples/Vrml2Sourcebook/Chapter20Lighting/Figure20_10BlinkingRedLightbulb.x3d '/>
<meta name='generatorcontent='X3D-Edit 3.3, https://savage.nps.edu/X3D-Edit'/>
<meta name='licensecontent=' ../../license.html'/>
</head>
<!--

to top <!-- Event Graph ROUTE Table shows event connections -->
 
<!-- Index for DEF nodes: Bulb, BulbDiffuse, BulbEmissive, BulbIntensity, BulbLight, BulbMaterial, CeilingDirectionalLight, Clock

Index for Viewpoint node: Viewpoint_1
-->
<Scene>
<WorldInfo title='Figure20_10BlinkingRedLightbulb.x3d'/>
<Viewpoint description='Blinking red light bulborientation='1 0 0 1.1position='0 2 0.25'/>
<!-- It is almost always a good idea to turn off headlight to avoid washing out other lighting effects in a scene -->
<NavigationInfo headlight='false'/>
<!-- Ceiling height -->
<Transform translation='0 3 0'>
<Transform translation='0 -0.05 0'>
<DirectionalLight DEF='CeilingDirectionalLightambientIntensity='1direction='0 1 0intensity='0.15'/>
<!-- ROUTE information for BulbLight node:  [from BulbIntensity.value_changed to set_intensity ] -->
<PointLight DEF='BulbLightcolor='1 0 0intensity='0.5radius='16'/>

<Shape>
<Sphere DEF='Bulbradius='0.04'/>
<Appearance>
<!-- ROUTE information for BulbMaterial node:  [from BulbDiffuse.value_changed to set_diffuseColor ] [from BulbEmissive.value_changed to set_emissiveColor ] -->
<Material DEF='BulbMaterialdiffuseColor='0 0 0emissiveColor='1 0.3 0.3'/>
</Appearance>
</Shape>
<Transform translation='-0.25 0.05 -0.25'>
<Shape>
<ElevationGrid solid='falsexDimension='11xSpacing='0.05zDimension='11zSpacing='0.05height='0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0'/>
<Appearance>
<Material diffuseColor='1 1 1'/>
</Appearance>
</Shape>
</Transform>
</Transform>
</Transform>
<!-- Animation brightness and colors -->

<!-- ROUTE information for BulbIntensity node:  [from Clock.fraction_changed to set_fraction ] [from value_changed to BulbLight.set_intensity ] -->
<ScalarInterpolator DEF='BulbIntensitykey='0 0.5 0.5 1keyValue='0.8 0.8 0 0'/>

<!-- ROUTE information for BulbDiffuse node:  [from Clock.fraction_changed to set_fraction ] [from value_changed to BulbMaterial.set_diffuseColor ] -->
<ColorInterpolator DEF='BulbDiffusekey='0 0.5 0.5 1keyValue='0.3 0.3 0.3 0.3 0.3 0.3 1 0.3 0.3 1 0.3 0.3'/>

<!-- ROUTE information for BulbEmissive node:  [from Clock.fraction_changed to set_fraction ] [from value_changed to BulbMaterial.set_emissiveColor ] -->
<ColorInterpolator DEF='BulbEmissivekey='0 0.5 0.5 1keyValue='1 0.3 0.3 1 0.3 0.3 0 0 0 0 0 0'/>

< ROUTE  fromNode=' Clock' fromField='fraction_changed' toNode=' BulbIntensity' toField='set_fraction'/>
< ROUTE  fromNode=' Clock' fromField='fraction_changed' toNode=' BulbDiffuse' toField='set_fraction'/>
< ROUTE  fromNode=' Clock' fromField='fraction_changed' toNode=' BulbEmissive' toField='set_fraction'/>
< ROUTE  fromNode=' BulbIntensity' fromField='value_changed' toNode=' BulbLight' toField='set_intensity'/>
< ROUTE  fromNode=' BulbDiffuse' fromField='value_changed' toNode=' BulbMaterial' toField='set_diffuseColor'/>
< ROUTE  fromNode=' BulbEmissive' fromField='value_changed' toNode=' BulbMaterial' toField='set_emissiveColor'/>
</Scene>
</X3D>
<!--

to top <!-- Event Graph ROUTE Table shows event connections -->
 
<!-- Index for DEF nodes: Bulb, BulbDiffuse, BulbEmissive, BulbIntensity, BulbLight, BulbMaterial, CeilingDirectionalLight, Clock

Index for Viewpoint node: Viewpoint_1
-->

Event Graph ROUTE Table with 6 ROUTE connections total, showing X3D event-model relationships for this scene.

Each row shows an event cascade that may occur during a single timestamp interval between frame renderings, as part of the X3D execution model.

Clock
TimeSensor
fraction_changed
SFFloat

ROUTE
event to
(1)
BulbIntensity
ScalarInterpolator
set_fraction
SFFloat

 
 
then
BulbIntensity
ScalarInterpolator
value_changed
SFFloat

ROUTE
event to
(2)
BulbLight
PointLight
set_intensity
SFFloat
Clock
TimeSensor
fraction_changed
SFFloat

ROUTE
event to
(1)
BulbDiffuse
ColorInterpolator
set_fraction
SFFloat

 
 
then
BulbDiffuse
ColorInterpolator
value_changed
SFColor

ROUTE
event to
(2)
BulbMaterial
Material
set_diffuseColor
SFColor
Clock
TimeSensor
fraction_changed
SFFloat

ROUTE
event to
(1)
BulbEmissive
ColorInterpolator
set_fraction
SFFloat

 
 
then
BulbEmissive
ColorInterpolator
value_changed
SFColor

ROUTE
event to
(2)
BulbMaterial
Material
set_emissiveColor
SFColor


-->

<!-- Online at
https://www.web3d.org/x3d/content/examples/Vrml2Sourcebook/Chapter20Lighting/Figure20_10BlinkingRedLightbulbIndex.html -->
<!-- Version control at
https://sourceforge.net/p/x3d/code/HEAD/tree/www.web3d.org/x3d/content/examples/Vrml2Sourcebook/Chapter20Lighting/Figure20_10BlinkingRedLightbulb.x3d -->

<!-- Color legend: X3D terminology <X3dNode DEF='idName' field='value'/> matches XML terminology <XmlElement DEF='idName' attribute='value'/>
(Light-blue background: event-based behavior node or statement) (Grey background inside box: inserted documentation) (Magenta background: X3D Extensibility)
-->

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