[x3d-public] ComposedBackground

[GPU Group]

How to do a dramatic sky, with star fields, sun, moon, clouds rotating at
different speeds/orbital directions? While giving lots of flexibility to
scene designers to experiment?
Here's what popped to mind for me, suggestions welcome.
-Doug
ComposedBackground : Background
{
MFNode layers NULL [SphericalMap]
MFNode transform NULL [TextureTransform3D]
}
EnvironmentLight : SphericalMap {}
SkyBox: SphericalMap {}
TextureRotation:TextureTransform3D
{
SFRotation pose 1 0 0 0
}
TextureTimeRotation:TextureTransform3D
{
SFRotation initialPose 1 0 0 0
SFFloat angularSpeed 0.0
}
GeoSynchronousTextureTransform : TextureTransform3D
{
SFVec3d location [geoLocation]
SFRotation initialPose
SFGeoTime gmtStartTime
SFTime timeSpeed
}
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