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Callback if object has been seen
Hi,
I want to be able to fire some actions when the viewpoint "sees" an object. I mean, i make an object and when enters into the viewpoint, i display a text. I've only seen ways to do it when the viewpoint collides with an object, or the user picks it. is it possible to do it ? Could you lead me to some reference i could work on. I read "Viewpoints & Windows" with no help thanks |
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