ray choice demonstration through the use of glunproject (), can be a 2D plane coordinates, converted into space for the three D coordinates. So we use glunproject () to the mouse cursor coordinate conversion into space coordinates, we can choose the mouse

main.cpp
Misc.h
PickObject.3DS
PickRay.dsp
PickRay.dsw
PickRay.exe
PickRay.ncb
PickRay.opt
PickRay.plg

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