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gluUnProject.3gl
Langue: en
Version: 377148 (fedora - 01/12/10)
Section: 3 (Bibliothèques de fonctions)
NAME
gluUnProject - map window coordinates to object coordinatesC SPECIFICATION
GLint gluUnProject( GLdouble winX,GLdouble winY, GLdouble winZ, const GLdouble *model, const GLdouble *proj, const GLint *view, GLdouble* objX, GLdouble* objY, GLdouble* objZ )
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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; a return value of GL_FALSE indicates failure. To compute the coordinates (objX, objY, and objZ), gluUnProject multiplies the normalized device coordinates by the inverse of model*proj as follows:SEE ALSO
glGet(3G), gluProject(3G)Contenus ©2006-2024 Benjamin Poulain
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