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

Packet : 65520771ogl_pickray.rar filelist
PickRay.exe
PickObject.3DS
main.cpp
PickRay.ncb
PickRay.dsp
PickRay.dsw
PickRay.plg
PickRay.opt
Shadow.GIF
Misc.h

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