(PHP 4 <= 4.3.2)

swf_lookat -- Define a viewing transformation


void swf_lookat ( float view_x, float view_y, float view_z, float reference_x, float reference_y, float reference_z, float 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.

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