gluUnProject
[New
- Windows 95, OEM Service Release 2]
The gluUnProject function maps window
coordinates to object coordinates.
int gluUnProject(
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GLdouble winx, |
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GLdouble winy, |
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GLdouble winz, |
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const GLdouble modelMatrix[16], |
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const GLdouble projMatrix[16], |
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const GLint viewport[4], |
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GLdouble * objx, |
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GLdouble * objy, |
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GLdouble * objz |
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); |
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Parameters
winx,
winy, winz
The window
coordinates to be mapped.
modelMatrix
The modelview
matrix (as from a glGetDoublev call).
projMatrix
The
projection matrix (as from a glGetDoublev call).
viewport
The viewport
(as from a glGetIntegerv
call).
objx,
objy, objz
The computed
object coordinates.
Return Values
If the
function succeeds, the return value is GL_TRUE.
If the
function fails, the return value is GL_FALSE.
Remarks
The gluUnProject function maps the specified
window coordinates into object coordinates using modelMatrix, projMatrix,
and viewport. The result is stored in objx, objy, and objz.
See Also