How to manipulate parts of a 3d object by touch in Unity3D

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Hey guys,
I am developing an android project.I am working in unity3d game engine.I want to select parts of a.obj 3D object and manipulate it by touching.How can I do that??
Is it possible to get the x,y and z coordinates of position of touch??

Posted 21-Jan-11 1:18am

Dipti Ananthan

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parths · Answer 1 · 2011-02-07T20:34:00

Search for a concept called '3D Picking' or 'Mouse picking' Or Ray-casting or all three.

There is a Unity3D Camera function 'ScreenPointToRay'[^]
which gives you a 3D ray starting from your 2D screen along the 3D viewing direction.

Also check out the Raycast[^] function which gives you the 3D object hit by a ray (if any) in the scene.

I hope this helps