int GsSetRefView2 (
GsRVIEW2 *pv
)
|
Arguments
| pv |
Pointer to viewpoint position information (reference type) |
Return Value
0 is returned if the viewpoint was successfully set, otherwise, 1 is returned.
Explanation
The World Screen Matrix (WSMATRIX) is calculated using the viewpoint information
pointed to by pv. Since WSMATRIX does not change unless the viewpoint
is moved, this function need not be called for each frame. However, if
the viewpoint is moved, GsSetRefView2() must be called for changes
to be reflected in each frame. GsSetRefView2() should be called
each frame if the GsRVIEW2
member super is set to anything other than WORLD. In this case,
the viewpoint will move if the parameters of the parent coordinate
system change even if the other viewpoint parameters have not changed.
See Also
GsRVIEW2, GsWSMATRIX,
GsSetView2()
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