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Index › Programming Questions & Help › Programs › mouse picking 3D textured sphere location
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mouse picking 3D textured sphere location (Read 588 times)
klauslukas
mouse picking 3D textured sphere location
Apr 17th, 2008, 1:11pm  
Hello Smiley

I'm a newbie in 3D and I have a problem : for a sketch, I used the opengl textured sphere example (in P3D, because of a problem with triangle_strip). I wanted a textured & movable sphere representing the earth, and that's OK.

But I need to locate where the mouse is clicking. I tried with cos but it doesn't work, because of the Y movement of the earth.

So I learned that mouse picking exists, and I found the example of tom carden with triangles (http://www.tom-carden.co.uk/p5/picking_with_projection/applet/). I think I understand a bit how it works, but with a sphere it's very different (all these triangles strangely placed in space... Smiley)
I need to know the XY position of the 2D mouse on the 3D sphere :/

Did anybody have the same problem, or knows how I can do this ?
Thank you very much !! Cheesy
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