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swf_lookat — Define a viewing transformation


void swf_lookat(vx, vy, vz, rx, ry, rz, twist);
double vx: Viewing x coordinate
double vy: Viewing y coordinate
double vz: Viewing z coordinate
double rx: Reference x coordinate
double ry: Reference x coordinate
double rz: Reference x coordinate
double twist: Amount of twist




Defines a viewing transformation by giving the view position vx , vy , vz , and the coordinates of a reference point in the scene at rx , ry , rz . twist controls a rotation along the viewer's z axis.


Existing since version 4.0

PHP Functions Essential Reference. Copyright © 2002 by New Riders Publishing (Authors: Zak Greant, Graeme Merrall, Torben Wilson, Brett Michlitsch). This material may be distributed only subject to the terms and conditions set forth in the Open Publication License, v1.0 or later (the latest version is presently available at The authors of this book have elected not to choose any options under the OPL. This online book was obtained from and is designed to provide information about the PHP programming language, focusing on PHP version 4.0.4 for the most part. The information is provided on an as-is basis, and no warranty or fitness is implied. All persons and entities shall have neither liability nor responsibility to any person or entity with respect to any loss or damage arising from the information contained in this book.

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