| 1 |
The Billboard is a group node.
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| 2 |
The billboard coordinate system is automatically rotated so that the shapes in the group as a unit always turn to face the viewer, even as the viewer moves around the group. This effect is called as billboarding.
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| 3 |
This can be used to define an advertisement billboard which always turn to face the viewer.
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Billboard { addChildren # eventIn MFNode removeChildren # eventIn MFNode axisOfRotation 0 1 0 # exposedField SFVec3f children [] # exposedField MFNode bboxCenter 0 0 0 # field SFVec3f bboxSize -1 -1 -1 # field SFVec3f }
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