animated directional light

rotatingDirLight.x3d

<X3D>
  <Scene>
    
    <NavigationInfo headlight='true'></NavigationInfo> 
    <!-- <NavigationInfo headlight='false'></NavigationInfo>  -->
    
    <!--     look down to the north at 90-75 degrees from vertical, adjust position by subtracting 15 degrees lat. -->
    
    <GeoViewpoint DEF='SanDiegoVP' position='27.715, -117.1625, 30000000' orientation='1, 0, 0, -1.31' centerOfRotation='0 10 -6371000' description='oblique SanDiego'></GeoViewpoint>
    
    <Background skyColor='0 0 0'></Background>

    <!-- This works -->
    <!-- <DirectionalLight on='true' direction='1 1 -0.3'  color='1 1 0.7' intensity='1'></DirectionalLight> -->
    
    <!-- But this does not work -->
    <Transform DEF='earthAxis' rotation='0 0 1 0'>
      <DirectionalLight on='true' direction='1 0 -0.3'  color='1 1 0.7' intensity='2'></DirectionalLight>
      <DirectionalLight on='true' direction='-0.5 0.87 -0.3'  intensity='.15'></DirectionalLight>
      <DirectionalLight on='true' direction='-0.5 -0.87 -0.3'  intensity='.15'></DirectionalLight>
    </Transform>
    

      <Transform DEF="SimpleGlobe" translation='0 0 0' rotation='1 0 0 1.57'>
        <Shape DEF="SimpleGlobeShape" visible='true'>
          <Appearance DEF="Appearance">
            <Material DEF="Material"  emissiveColor='0.0 0.0 0.0'></Material>
            <ImageTexture _url='"https://i.postimg.cc/gJ2xrrkZ/3-no-ice-clouds-8k.jpg"' url='"https://i.postimg.cc/d3nnrh8c/earthtex.jpg"'></ImageTexture>
            <TextureTransform translation='-0.25 0'></TextureTransform>
          </Appearance>
          <Sphere DEF="ball" radius="6371000"></Sphere>
        </Shape>
      </Transform>
	<TimeSensor DEF='oneDay' cycleInterval='10' loop='true'></TimeSensor>
	<OrientationInterpolator DEF='dayRotor' key='0 0.5 1' keyValue='0 0 1 0, 0 0 1 -3.14, 0 0 1 -6.28'></OrientationInterpolator>
	<ROUTE fromNode='oneDay' fromField='fraction_changed' toNode='dayRotor' toField='set_fraction'></ROUTE>
	<ROUTE fromNode='dayRotor' fromField='value_changed' toNode='earthAxis' toField='set_rotation'></ROUTE>
  <OrientationInterpolator DEF='logoRotor' key='0 0.33 0.66 1' keyValue='0 0 1 0, 0 1 0 3.14, 1 0 0 3.14, 0 0 1 6.28'></OrientationInterpolator>
	</Scene>
</X3D>