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  #1  
Old 04-30-2007, 06:24 AM
shivanangel shivanangel is offline
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Join Date: Feb 2006
Location: New Jersey
Posts: 182
viz.lookat() with 3d text problem

Hi,
I am trying to have your 3Dtext always look at the camera.
But instead of facing the camera from the normal left to right,
the 3d text always orients to has its back to the camera.

Any idea how to fix this?

My code is nothing special,
just:

#Orient the Text toward the camera
def faceCamera(self):
self.tpressure.lookat(self.view.getPosition())


Thanks,
George
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  #2  
Old 04-30-2007, 10:30 AM
farshizzo farshizzo is offline
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Join Date: Mar 2003
Posts: 2,849
Hi,

This is because the text is always facing towards its local -Z axis. You need to apply a 180 degree rotation after the lookat command:
Code:
self.tpressure.lookat(self.view.getPosition())
self.tpressure.setEuler(180,0,0,viz.REL_LOCAL)
Also, instead of manually performing this code, you can use the billboard() command to have Vizard automatically do it for you.
Code:
text = viz.addText('hello')
text.billboard(viz.BILLBOARD_VIEW) #Have text always face the user
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  #3  
Old 04-30-2007, 02:34 PM
shivanangel shivanangel is offline
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Join Date: Feb 2006
Location: New Jersey
Posts: 182
Thank You!
Once again, something I should of known had I consulted the manual thoroughly.

Thanks again for the speedy reply.

~~George
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