Function.swf-lookat
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swf_lookat — Define a viewing transformation
Description
Beschreibung
void swf_lookat ( double $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.