(PHP 4)
swf_lookat — Define a viewing transformation
$view_x
, double $view_y
, double $view_z
, double $reference_x
, double $reference_y
, double $reference_z
, double $twist
)
The swf_lookat() function defines a viewing
transformation by giving the viewing position (the parameters
view_x, view_y, and
view_z) and the coordinates of a reference
point in the scene, the reference point is defined by the
reference_x, reference_y
, and reference_z parameters.
The twist controls the rotation along
with viewer's z axis.