求助!!OPENGL中屏幕坐标到世界坐标的转换~

maybe its impossible... even if the camera position is known, you could only get a projection plane from the coordianates of the screen. you need at least 2 projections from the camera with 2 different place to locate the object in world coordinates. Or known the distance from the camera to projection plane.

I am not really sure, thats my suggestion from my knowledge. Hope it is helpful:)

da bu liao zhong wen bu hao yi si