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-   -   Getting object position in screen coordinates (https://forum.worldviz.com/showthread.php?t=1250)

v-Salik 10-19-2007 03:38 PM

Getting object position in screen coordinates
 
I have a user moving an avatar from the 3rd person view (moving arms/hands).
I want to check if the avatars hand is 'on top' of an on object from the view of the user, is there a way to get the projection transformation matrix and apply that to the object positions to get the screen coordinates of both objects then compare them?

THanks
-Salik

farshizzo 10-19-2007 03:41 PM

Search the documentation for "worldToScreen", there should be a few examples showing how to convert a 3d location to a 2d location.


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