Documentation:Tutorial Section 5

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Appendices

POV-Ray User License

POV-Ray License Agreement
GENERAL LICENSE AGREEMENT
FOR PERSONAL USE
Persistence of Vision Ray Tracer™ (POV-Ray™)
Version 3.7 License
and Terms & Conditions of Use
version of 27 October 2004
(also known as POVLEGAL.DOC)

Please read through the terms and conditions of this license carefully. This license is a binding legal agreement between you, the 'User' (an individual or single entity) and Persistence of Vision Raytracer Pty. Ltd. ACN 105 891 870 (herein also referred to as the "Company"), a company incorporated in the state of Victoria, Australia, for the product known as the "Persistence of Vision Ray Tracer™", also referred to herein as "POV-Ray™".

YOUR ATTENTION IS PARTICULARLY DRAWN TO THE DISCLAIMER OF WARRANTY AND NO LIABILITY AND INDEMNITY PROVISIONS. TO USE THE PERSISTENCE OF VISION RAY TRACER ("POV-RAY") YOU MUST AGREE TO BE BOUND BY THE TERMS AND CONDITIONS SET OUT IN THIS DOCUMENT. IF YOU DO NOT AGREE TO ALL THE TERMS AND CONDITIONS OF USE OF POV-RAY SET OUT IN THIS LICENSE AGREEMENT, OR IF SUCH TERMS AND CONDITIONS ARE NOT BINDING ON YOU IN YOUR JURISDICTION, THEN YOU MAY NOT USE POV-RAY IN ANY MANNER. THIS GENERAL LICENSE AGREEMENT MUST ACCOMPANY ALL POV-RAY FILES WHETHER IN THEIR OFFICIAL OR CUSTOM VERSION FORM. IT MAY NOT BE REMOVED OR MODIFIED. THIS GENERAL LICENSE AGREEMENT GOVERNS THE USE OF POV-RAY WORLDWIDE. THIS DOCUMENT SUPERSEDES AND REPLACES ALL PREVIOUS GENERAL LICENSES.

INTRODUCTION

This document pertains to the use of the Persistence of Vision Ray Tracer™ (also known as POV-Ray™). It applies to all POV-Ray program source files, executable (binary) files, scene files, documentation files, help files, bitmaps and other POV-Ray files contained in official Company archives, whether in full or any part thereof, and are herein referred to as the "Software". The Company reserves the right to revise these rules in future versions and to make additional rules to address new circumstances at any time. Such rules, when made, will be posted in a revised license file, the latest version of which is available from the Company website at http://www.povray.org/povlegal.html .

USAGE PROVISIONS

Subject to the terms and conditions of this agreement, permission is granted to the User to use the Software and its associated files to create and render images. The creator of a scene file retains all rights to any scene files they create, and any images generated by the Software from them. Subject to the other terms of this license, the User is permitted to use the Software in a profit-making enterprise, provided such profit arises primarily from use of the Software and not from distribution of the Software or a work including the Software in whole or part.

Please refer to http://www.povray.org/povlegal.html for licenses covering distribution of the Software and works including the Software.

The User is also granted the right to use the scene files, fonts, bitmaps, and include files distributed in the INCLUDE and SCENES\INCDEMO sub- directories of the Software in their own scenes. Such permission does not extend to any other files in the SCENES directory or its sub-directories. The SCENES files are for the User's enjoyment and education but may not be the basis of any derivative works unless the file in question explicitly grants permission to do such.

This license does not grant any right of re-distribution or use in any manner other than the above. The Company has separate license documents that apply to other uses (such as re-distribution via the internet or on CD); please visit http://www.povray.org/povlegal.html for links to these. In particular you are advised that the sale, lease, or rental of the Software in any form without written authority from the Company is explicitly prohibited.

Notwithstanding anything in the the balance of this license agreement, nothing in this license agreement permits the installation or use of the Software in conjunction with any product (including software) produced or distributed by any party who is, or has been, in violation of this license agreement or of the distribution license (http://www.povray.org/distribution-license.html) (or any earlier or later versions of those documents) unless:

the Company has explicitly released that party in writing from the consequences of their non compliance; or
both of the following are true:

the installation or use of the Software is without the User being aware of the abovementioned violation; and
the installation or use of the Software is not a result (whether direct or indirect) of any request or action of the abovementioned party (or any of its products), any agent of that party (or any of their products), or any person(s) involved in supplying any such product to the User.

COPYRIGHT

Copyright subsists in this Software which is protected by Australian and international copyright laws. The Software is NOT PUBLIC DOMAIN.

Nothing in this agreement shall give you any rights in respect of the intellectual property of the Company and you acknowledge that you do not acquire any rights in respect of such intellectual property rights. You acknowledge that the Software is the valuable intellectual property of the Company and that if you use, modify or distribute the Software for unauthorized purposes or in an unauthorized manner (or cause or allow the forgoing to occur), you will be liable to the Company for any damages it may suffer (and which you acknowledge it may suffer) as well as statutory damages to the maximum extent permitted by law and also that you may be liable to criminal prosecution. You indemnify the Company and the authors of the Software for every single consequence flowing from the aforementioned events.

DISCLAIMER OF WARRANTY

This Software is provided on an "AS IS" basis, without warranty of any kind, express or implied, including without limitation, any implied warranties of merchantability, fitness for a particular purpose and non-infringement of intellectual property of any third party. This Software has inherent limitations including design faults and programming bugs. The entire risk as to the quality and performance of the Software is borne by you, and it is your responsibility to ensure that it does what you require it to do prior to using it for any purpose (other than testing it), and prior to distributing it in any fashion. Should the Software prove defective, you agree that you alone assume the entire cost resulting in any way from such defect.

This disclaimer of warranty constitutes an essential and material term of this agreement. If you do not or cannot accept this, or if it is unenforceable in your jurisdiction, then you may not use the Software in any manner.

NO LIABILITY

When you use the Software you acknowledge and accept that you do so at your sole risk. You agree that under no circumstances shall you have any claim against the Company or anyone associated directly or indirectly with the Company whether as employee, subcontractor, agent, representative, consultant, licensee or otherwise ("Company Associates") for any loss, damages, harm, injury, expense, work stoppage, loss of business information, business interruption, computer failure or malfunction which may be suffered by you or by any third party from any cause whatsoever, howsoever arising, in connection with your use or distribution of the Software even where the Company were aware, or ought to have been aware, of the potential of such loss. Damages referred to above shall include direct, indirect, general, special, incidental, punitive and/or consequential.

This disclaimer of liability constitutes an essential and material term of this agreement. If you do not or cannot accept this, or if it is unenforceable in your jurisdiction, then you may not use the Software.

INDEMNITY

You indemnify the Company and Company Associates and hold them harmless against any claims which may arise from any loss, damages, harm, injury, expense, work stoppage, loss of business information, business interruption, computer failure or malfunction, which may be suffered by you or any other party whatsoever as a consequence of any act or omission of the Company and/or Company Associates, whether negligent or not, arising out of your use and/or distribution of the Software, or from any other cause whatsoever, howsoever arising, in connection with the Software. These provisions are binding on your estate, heirs, executors, legal successors, administrators, parents and/or guardians.

This indemnification constitutes an essential and material term of this agreement. If you do not or cannot accept this, or if it is unenforceable in your jurisdiction, then you may not use the Software.

HIGH RISK ACTIVITIES

This Software and the output produced by this Software is not fault-tolerant and is not designed, manufactured or intended for use as on-line control equipment in hazardous environments requiring fail-safe performance, in which the failure of the Software could lead or directly or indirectly to death, personal injury, or severe physical or environmental damage ("High Risk Activities"). The Company specifically disclaims any express or implied warranty of fitness for High Risk Activities and explicitly prohibits the use of the Software for such purposes.

MISCELLANEOUS

This Agreement constitutes the complete agreement concerning this license. Any changes to this agreement must be in writing and may take the form of notifications by the Company to you, or through posting notifications on the Company website. THE USE OF THIS SOFTWARE BY ANY PERSON OR ENTITY IS EXPRESSLY MADE CONDITIONAL ON THEIR ACCEPTANCE OF THE TERMS SET FORTH HEREIN.

Except where explicitly stated otherwise herein, if any provision of this Agreement is found to be invalid or unenforceable, the invalidity or unenforceability of such provision shall not affect the other provisions of this agreement, and all provisions not affected by such invalidity or unenforceability shall remain in full force and effect. In such cases you agree to attempt to substitute for each invalid or unenforceable provision a valid or enforceable provision which achieves to the greatest extent possible, the objectives and intention of the invalid or unenforceable provision. The validity and interpretation of this agreement will be governed by the laws of Australia in the state of Victoria (except for conflict of law provisions).

CONTACT INFORMATION

License inquiries can be made via email; please use the following address (but see below prior to emailing) :

team-coord-[three-letter month]-[four-digit year]@povray.org

for example, [email protected] should be used if at the time you send the email it is the month of June 2004. The changing email addresses are necessary to combat spam and email viruses. Old email addresses may be deleted at our discretion.

Note that the above address may change for reasons other than that given above; please check the version of this document on the WWW at http://www.povray.org/povlegal.html for the current address. Note that your inability or failure to contact us for any reason is not an excuse for violating this license.

Do NOT send any attachments of any sort other than by prior arrangement. EMAIL MESSAGES INCLUDING ATTACHMENTS WILL BE DELETED UNREAD.

The following postal address is only for official license business. Please note that it is preferred that initial queries about licensing be made via email; postal mail should only be used when email is not possible, or when written documents are being exchanged by prior arrangement.

    Persistence of Vision Raytracer Pty. Ltd.
    PO Box 407
    Williamstown,
    Victoria 3016
    Australia

Support Library Licenses

Licenses for Support Libraries used by POV-Ray

OpenEXR

Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met:

Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer.
Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution.
Neither the name of Industrial Light & Magic nor the names of any other contributors to this software may be used to endorse or promote products derived from this software without specific prior written permission.

THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

Citing POV-Ray in Academic Publications

To reference POV-Ray (e.g. in academic papers), you may use one of the below:

  Persistence of Vision Pty. Ltd. (2010)
    Persistence of Vision Raytracer (Version 3.7)
    [Computer software].
      Retrieved from http://www.povray.org/download/

or

 
  Persistence of Vision Pty. Ltd. (2010).
  Persistence of Vision (TM) Raytracer.
  Persistence of Vision Pty. Ltd., Williamstown, Victoria, Australia.
   http://www.povray.org/

The POV-Team

Following is a list in alphabetic order of all people who have ever worked on the POV-Ray Team or who have made a note-worthy contribution.

Current POV-Team Members

Chris Cason: Member 1993-, Team leader 1999-, windows version author, other contributions
Thorsten Fröhlich: Mac developer
Christoph Lipka: Core code improvements notably radiosity, gamma handling, sslt and too many others to list
Nicolas Calimet: UNIX development
James Holsenback: 3.7 documentation, POV-Wiki
Christoph Hormann: UNIX development
Nathan Kopp: Photons, u/v mapping, other contributions
Juha Nieminen: area_illumination, cubic pattern and cubic warp, fractal patterns, other contributions

Past POV-Team Members and other Contributors

Claire Amundsen: Tutorials for the POV-Ray User Guide
Steve Anger: POV-Ray 2.0/3.0 developer
Randy Antler: MS-Dos display code enhancements
John Baily: RLE targa code
Eric Barish: Ground fog code
Thomas Baier: 3.1 team member, tester
Dieter Bayer: Wrote sor, lathe, prism, media and many other features
Anthony Bennett: Scene files, documentation
Kendall Bennett: PMODE library support, paletted display code in Windows version
Steve Bennett: GIF support
Thomas Bily: Implicit and parametric surfaces
Dale C. Brodin: Alpha & Beta tester, forum support
Eric Brown: no_image, no_reflection, orient and circular area_light
Matthew Corey Brown: pigment function, warps, projected_through
David Buck: Original author of DKBTrace, POV-Ray 1.0 developer
Edward Coffey: Fade_color
Aaron Collins: Co-author of DKBTrace 2.12, POV-Ray 1.0 developer
Chris Dailey: POV-Ray 3.0 developer
Steve Demlow: POV-Ray 3.0 developer
Andreas Dilger: Former Unix coordinator, Linux developer, PNG support
Joris van Drunen Littel: Mac beta tester
Alexander Enzmann: POV-Ray 1.0/2.0/3.0 developer
Dan Farmer: POV-Ray 1.0/2.0/3.0 developer, author of many features, sample scenes, and textures
Daniel Fenner: Splines
Hans-Detlev Fink: Slope pattern
Charles Fusner: Blob, lathe and prism tutorial tutorials for the POV-Ray User Guide
Mark Gordon: Unix developer
Jérôme Grimbert: Mapping warps, image meta-data, the ovus object, several list patterns, additional render block items
David Harr: Mac balloon help and palette code
Michael Hazelgrove: Scene files
Jimmy Hoeks: Original Help file for v3.0 Windows user interface
Christoph Hormann: Scene & include files, documentation, insert menu
Chris Huff: Object pattern, Interior texture, inverse transform
Bob Hughes: Scene and include files, insert menu
Ingo Janssen: Scene & include files, documentation
Mike Hough: Spherical camera, Media method 2, uv_mapping for bicubic_patch
Rune S. Johansen: Scene & include files, documentation
Greg M. Johnson: Scene files
Terry Kanakis: Camera fix
Kari Kivisalo: Ground fog code
Alan Kong: Alpha & Beta tester, forum support
Lutz Kretzschmar: Moray author, MS-DOS 24-bit VGA, part of the anti-aliasing code
Tor Olav Kristensen: Scene files
Jochen Lippert: Sphere_sweep
Charles Marslett: MS-Dos display code
Pascal Massimino: Fractal objects
Jim McElhiney: POV-Ray 3.0 developer
Robert A. Mickelsen: Artist, 3.0 docs contributor
Mike Miller: Artist, scene files, stones.inc
Fabien Mosen: Scene & include files
Douglas Muir: Bump maps, height fields
Joel Newkirk: Former Amiga developer
Juha Nieminen: Fractal patterns
Jim Nitchals: Mac version, scene files (Jim - famous also for his anti-spam crusades - passed away on 5 June 1998 but his contributions to POV-Ray and responsible use of the internet will not be forgotten)
Paul Novak: Texture contributions
Wolfgang Ortmann: Splines
Dave Park: Amiga support, AGA video code
Redaelli Paolo: Former Amiga developer
Ron Parker: Core code, jack-of-all-trades
David Payne: RLE targa code
Ansgar Philippsen: Smooth color triangle
Jaime Vives Piqueres: Mesh camera scene files
Bill Pulver: Time code
Anton Raves: Alpha & Beta tester, Mac contributor
Dan Richardson: 3.0 Docs
Tim Rowley: PPM and Windows-specific BMP image format support
Eduard Schwan: Former Mac version coordinator, mosaic preview, docs
Daniel Skarda: Implicit and parametric surfaces
Robert Skinner: Noise functions
Yvo & René Smellenbergh: Clock & Image_size keywords
Erkki Sondergaard: Alpha & Beta tester, 3.0 Scene files
Ryoichi Suzuki: Isosurfaces
Zsolt Szalavari: Halo code which was later turned into media
Scott Taylor: Leopard and onion textures
Gilles Tran: Scene files
John VanSickle: Cells pattern
Mark Wagner: Splines
Timothy Wegner: Fractal objects, PNG support
Drew Wells: POV-Ray 1.0 developer, POV-Ray 1.0 team coordinator
Daren Scot Wilson: Dispersion
Chris Young: Team leader 1992-1999, parser code, other contributions too numerous to list here

Contacting the Authors

The POV-Team is a collection of volunteer programmers, designers, animators and artists meeting via the internet at http://www.povray.org/. The POV-Team's goal is to create freely distributable, high quality rendering and animation software written in C that can be easily ported to many different computers. If you have any questions about POV-Ray, please visit our web site for the latest contact information, or see the http://www.povray.org/povlegal.html online version of POVLEGAL] for the current team coordinators address (this changes from time to time whenever too many email spammers harvest the address).

If you have a question regarding commercial use or distribution of POV-Ray, please contact Chris Cason, the development team coordinator, via the above method. Please do not email us directly for technical support; we no longer give support via email as too many people abused the privilege.

See our web site and particularly our news server for online peer support. The news server has a moderated bug reporting newsgroup; please however discuss the issue in the povray.general newsgroup prior to lodging a bug report as we may already know of the issue (or it might not even be a bug). Also, there are several FAQ's on the POV web site, and in general the folks in the newsgroups think rather poorly of users who post complaints without reading the FAQ's first.

What to do if you don't have POV-Ray

This documentation assumes you already have POV-Ray installed and running however the POV-Team does distribute this file by itself in various formats including online on the internet. If you do not have POV-Ray or are not sure you have the official version or the latest version, then the following sections will tell you what to get and where to get it.

Questions and Tips

Which Version of POV-Ray should you use?