gluUnProject(3G)	       OpenGL Reference		      gluUnProject(3G)



NAME
     gluUnProject - map	window coordinates to object coordinates


C SPECIFICATION
     GLint gluUnProject( GLdouble winX,
			 GLdouble winY,
			 GLdouble winZ,
			 const GLdouble	*model,
			 const GLdouble	*proj,
			 const GLint *view,
			 GLdouble* objX,
			 GLdouble* objY,
			 GLdouble* objZ	)


PARAMETERS
     winX, winY, winZ
		     Specify the window	coordinates to be mapped.

     model	     Specifies the modelview matrix (as	from a glGetDoublev
		     call).

     proj	     Specifies the projection matrix (as from a	glGetDoublev
		     call).

     view	     Specifies the viewport (as	from a glGetIntegerv call).

     objX, objY, objZ
		     Returns the computed object coordinates.


DESCRIPTION
     gluUnProject maps the specified window coordinates	into object
     coordinates using model, proj, and	view.  The result is stored in objX,
     objY, and objZ.  A	return value of	GL_TRUE	indicates success, and
     GL_FALSE indicates	failure.


SEE ALSO
     glGet, gluProject














									Page 1