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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<!-- This file copyright Persistence of Vision Raytracer Pty. Ltd. 2009-2011 -->
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<title>Tutorial Section 5</title>
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<tr>
<td class="FixedPanelHeading"><a title="2.5" href="#t2_5">Appendices</a></td>
</tr>
<tr>
<td><div class="divh2"><strong><a title="2.5.1" href="#t2_5_1">Contacting the Authors</a></strong></div></td>
</tr>
<tr>
<td><div class="divh2"><strong><a title="2.5.2" href="#t2_5_2">POV-Ray License</a></strong></div></td>
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<td><div class="divh2"><strong><a title="2.5.3" href="#t2_5_3">Contact Information</a></strong></div></td>
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<td><div class="divh2"><strong><a title="2.5.4" href="#t2_5_4">Support Library Licenses</a></strong></div></td>
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<td><div class="divh3"><a title="2.5.4.1" href="#t2_5_4_1">OpenEXR</a></div></td>
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<td><div class="divh2"><strong><a title="2.5.5" href="#t2_5_5">Citing POV-Ray in Academic Publications</a></strong></div></td>
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<td><div class="divh2"><strong><a title="2.5.6" href="#t2_5_6">Contributors to POV-Ray</a></strong></div></td>
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<td><div class="divh2"><strong><a title="2.5.7" href="#t2_5_7">Thanks</a></strong></div></td>
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<td><div class="divh2"><strong><a title="2.5.8" href="#t2_5_8">What to do if you don't have POV-Ray</a></strong></div></td>
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<td><div class="divh3"><a title="2.5.8.1" href="#t2_5_8_1">Which Version of POV-Ray should you use?</a></div></td>
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<td><div class="divh4"><a title="2.5.8.1.1" href="#t2_5_8_1_1">Microsoft Windows</a></div></td>
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<td><div class="divh4"><a title="2.5.8.1.2" href="#t2_5_8_1_2">Apple Macintosh</a></div></td>
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<td><div class="divh4"><a title="2.5.8.1.3" href="#t2_5_8_1_3">Linux/Unix</a></div></td>
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<td><div class="divh4"><a title="2.5.8.1.4" href="#t2_5_8_1_4">All Versions</a></div></td>
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<td><div class="divh3"><a title="2.5.8.2" href="#t2_5_8_2">Where to Find POV-Ray Files</a></div></td>
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<td><div class="divh4"><a title="2.5.8.2.1" href="#t2_5_8_2_1">World Wide Website www.povray.org</a></div></td>
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<td><div class="divh2"><strong><a title="2.5.9" href="#t2_5_9">Suggested Reading</a></strong></div></td>
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<td><div class="divh1">&nbsp;</div></td>
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<td><div class="divh1">&nbsp;</div></td>
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<td colspan=5 align="left" class="HeaderFooter">
POV-Ray for Unix <strong class="HeaderFooter">version 3.7</strong>
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<a name="t2_5"></a>
<div class="content-level-h2" contains="Appendices" id="t2_5">
<h2>2.5 Appendices</h2>
</div>
<a name="t2_5_1"></a>
<div class="content-level-h3" contains="Contacting the Authors" id="t2_5_1">
<h3>2.5.1 Contacting the Authors</h3>
<p>
If you have a question regarding commercial use or distribution of
POV-Ray, please contact the development team coordinator via the address listed at http://www.povray.org/povlegal.html.
Please do not email us directly for technical support - use the below-mentioned forums. We generally do not answer emails requesting
support if the sender has not first asked in the forums or read the documentation.
</p>
<p>See our <a href="http://www.povray.org/">web site</a>
and particularly our <a href="http://www.povray.org/groups.html">forums</a> for online peer
support.
The forums have a bug reporting group; please however discuss the issue in the <a href="http://news.povray.org/povray.general">povray.general</a>
group and check our bugtracker at http://bugs.povray.org/ prior to lodging a report as we may already know of the issue (or it might not even be a bug).</p>
</div>
<a name="t2_5_2"></a>
<div class="content-level-h3" contains="POV-Ray License" id="t2_5_2">
<h3>2.5.2 POV-Ray License</h3>
<p class="Note">
<b>Note:</b> The following license applies to POV-Ray version 3.7 and later.
It does <i>not</i> apply to any earlier version, including the 3.7 beta-test and release candidates.
</p>
<div class="license-text"><pre>
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A patent license is "discriminatory" if it does not include within
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contain the covered work, unless you entered into that arrangement,
or that patent license was granted, prior to 28 March 2007.
Nothing in this License shall be construed as excluding or limiting
any implied license or other defenses to infringement that may
otherwise be available to you under applicable patent law.
12. No Surrender of Others' Freedom.
If conditions are imposed on you (whether by court order, agreement or
otherwise) that contradict the conditions of this License, they do not
excuse you from the conditions of this License. If you cannot convey a
covered work so as to satisfy simultaneously your obligations under this
License and any other pertinent obligations, then as a consequence you may
not convey it at all. For example, if you agree to terms that obligate you
to collect a royalty for further conveying from those to whom you convey
the Program, the only way you could satisfy both those terms and this
License would be to refrain entirely from conveying the Program.
13. Remote Network Interaction; Use with the GNU General Public License.
Notwithstanding any other provision of this License, if you modify the
Program, your modified version must prominently offer all users
interacting with it remotely through a computer network (if your version
supports such interaction) an opportunity to receive the Corresponding
Source of your version by providing access to the Corresponding Source
from a network server at no charge, through some standard or customary
means of facilitating copying of software. This Corresponding Source
shall include the Corresponding Source for any work covered by version 3
of the GNU General Public License that is incorporated pursuant to the
following paragraph.
Notwithstanding any other provision of this License, you have
permission to link or combine any covered work with a work licensed
under version 3 of the GNU General Public License into a single
combined work, and to convey the resulting work. The terms of this
License will continue to apply to the part which is the covered work,
but the work with which it is combined will remain governed by version
3 of the GNU General Public License.
14. Revised Versions of this License.
The Free Software Foundation may publish revised and/or new versions of
the GNU Affero General Public License from time to time. Such new versions
will be similar in spirit to the present version, but may differ in detail to
address new problems or concerns.
Each version is given a distinguishing version number. If the
Program specifies that a certain numbered version of the GNU Affero General
Public License "or any later version" applies to it, you have the
option of following the terms and conditions either of that numbered
version or of any later version published by the Free Software
Foundation. If the Program does not specify a version number of the
GNU Affero General Public License, you may choose any version ever published
by the Free Software Foundation.
If the Program specifies that a proxy can decide which future
versions of the GNU Affero General Public License can be used, that proxy's
public statement of acceptance of a version permanently authorizes you
to choose that version for the Program.
Later license versions may give you additional or different
permissions. However, no additional obligations are imposed on any
author or copyright holder as a result of your choosing to follow a
later version.
15. Disclaimer of Warranty.
THERE IS NO WARRANTY FOR THE PROGRAM, TO THE EXTENT PERMITTED BY
APPLICABLE LAW. EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT
HOLDERS AND/OR OTHER PARTIES PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY
OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO,
THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
PURPOSE. THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE PROGRAM
IS WITH YOU. SHOULD THE PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF
ALL NECESSARY SERVICING, REPAIR OR CORRECTION.
16. Limitation of Liability.
IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MODIFIES AND/OR CONVEYS
THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, INCLUDING ANY
GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE
USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED TO LOSS OF
DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD
PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER PROGRAMS),
EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF
SUCH DAMAGES.
17. Interpretation of Sections 15 and 16.
If the disclaimer of warranty and limitation of liability provided
above cannot be given local legal effect according to their terms,
reviewing courts shall apply local law that most closely approximates
an absolute waiver of all civil liability in connection with the
Program, unless a warranty or assumption of liability accompanies a
copy of the Program in return for a fee.
END OF TERMS AND CONDITIONS
How to Apply These Terms to Your New Programs
If you develop a new program, and you want it to be of the greatest
possible use to the public, the best way to achieve this is to make it
free software which everyone can redistribute and change under these terms.
To do so, attach the following notices to the program. It is safest
to attach them to the start of each source file to most effectively
state the exclusion of warranty; and each file should have at least
the "copyright" line and a pointer to where the full notice is found.
&lt;one line to give the program's name and a brief idea of what it does.&gt;
Copyright (C) &lt;year&gt; &lt;name of author&gt;
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU Affero General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU Affero General Public License for more details.
You should have received a copy of the GNU Affero General Public License
along with this program. If not, see &lt;http://www.gnu.org/licenses/&gt;.
Also add information on how to contact you by electronic and paper mail.
If your software can interact with users remotely through a computer
network, you should also make sure that it provides a way for users to
get its source. For example, if your program is a web application, its
interface could display a "Source" link that leads users to an archive
of the code. There are many ways you could offer source, and different
solutions will be better for different programs; see section 13 for the
specific requirements.
You should also get your employer (if you work as a programmer) or school,
if any, to sign a "copyright disclaimer" for the program, if necessary.
For more information on this, and how to apply and follow the GNU AGPL, see
&lt;http://www.gnu.org/licenses/&gt;.
</div></pre>
</div>
<a name="t2_5_3"></a>
<div class="content-level-h3" contains="Contact Information" id="t2_5_3">
<h3>2.5.3 Contact Information</h3>
<p>
If you wish to contact us for purposes other than technical support, the following means are available:
</p>
<p>
<b>Via email:</b>
</p>
<p>
&nbsp;&nbsp;&nbsp;&nbsp;<code>team-coord-[three-letter month]-[four-digit year]@povray.org</code>
</p>
<p>
for example, <code>team-coord-jun-2004@povray.org</code> 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.
</p>
<p class="Note">
<b>Note:</b> Please do not send bug reports or technical support requests to this address.
Use <a href="http://news.povray.org/">our forums</a> or <a href="http://bugs.povray.org/">bugtracker</a>
for technical support or bug reports.
</p>
<p>
<b>Via postal mail:</b>
</p>
<p>
The following postal address is only for official 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.
</p>
<p>
&nbsp;&nbsp;&nbsp;&nbsp;Persistence of Vision Raytracer Pty. Ltd.<br>
&nbsp;&nbsp;&nbsp;&nbsp;PO Box 407<br>
&nbsp;&nbsp;&nbsp;&nbsp;Williamstown,<br>
&nbsp;&nbsp;&nbsp;&nbsp;Victoria 3016<br>
&nbsp;&nbsp;&nbsp;&nbsp;Australia<br>
</p>
</div>
<a name="t2_5_4"></a>
<div class="content-level-h3" contains="Support Library Licenses" id="t2_5_4">
<h3>2.5.4 Support Library Licenses</h3>
<center><strong>Licenses for Support Libraries used by POV-Ray</strong></center>
</div>
<a name="t2_5_4_1"></a>
<div class="content-level-h4" contains="OpenEXR" id="t2_5_4_1">
<h4>2.5.4.1 OpenEXR</h4>
<p>Copyright &#169; 2004, Industrial Light &amp; Magic, a division of Lucasfilm
Entertainment Company Ltd. Portions contributed and copyright held by
others as indicated. All rights reserved.</p>
<p>Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are
met:</p>
<ul>
<li>Redistributions of source code must retain the above
copyright notice, this list of conditions and the following
disclaimer.</li>
<li>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.</li>
<li>Neither the name of Industrial Light &amp; 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.</li>
</ul>
<p>THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
&quot;AS IS&quot; 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.</p>
</div>
<a name="t2_5_5"></a>
<div class="content-level-h3" contains="Citing POV-Ray in Academic Publications" id="t2_5_5">
<h3>2.5.5 Citing POV-Ray in Academic Publications</h3>
<p>To reference POV-Ray (e.g. in academic papers), you may use one of the below:</p>
<p class="Note"><strong>Note:</strong> The year should be replaced with the year of your publication.</p>
<pre>
Persistence of Vision Pty. Ltd. (2013)
Persistence of Vision Raytracer (Version 3.7)
[Computer software].
Retrieved from http://www.povray.org/download/
</pre>
<p>
or
</p>
<pre>
Persistence of Vision Pty. Ltd. (2013).
Persistence of Vision Raytracer.
Persistence of Vision Pty. Ltd., Williamstown, Victoria, Australia.
http://www.povray.org/
</pre>
</div>
<a name="t2_5_6"></a>
<div class="content-level-h3" contains="Contributors to POV-Ray" id="t2_5_6">
<h3>2.5.6 Contributors to POV-Ray</h3>
<p class="Note"><strong>Primary POV-Ray 3.7 Core Architects/Developers: (alphabetically)</strong></p>
<dl>
<dt>Chris Cason</dt>
<dd>Developer 1993-, team leader 1999-, Windows version, SMP implementation, mesh camera, BSP bounding, too many other contributions to list here</dd>
<dt>Thorsten Fr&ouml;hlich</dt>
<dd>Developer 1996-, Mac developer, frontend-backend messaging system, SMP implementation, too many other contributions to list here</dd>
<dt>Christoph Lipka</dt>
<dd>Developer 2009-, core code improvements notably radiosity, gamma handling, sslt and too many others to list</dd>
</dl>
<dl>
<p class="Note"><strong>With Assistance From: (alphabetically)</strong></p>
<dt>Nicolas Calimet</dt>
<dd>UNIX development</dd>
<dt>J&eacute;r&ocirc;me Grimbert</dt>
<dd>Mapping warps, image meta-data, the ovus object, several list patterns, additional render block items, and other core code contributions.</dd>
<dt>James Holsenback</dt>
<dd>3.7 documentation, POV-Wiki, various Unix/Linux, and scene file contributions</dd>
<dt>Christoph Hormann</dt>
<dd>UNIX development</dd>
<dt>Nathan Kopp</dt>
<dd>Photons, u/v mapping, other contributions</dd>
<dt>Juha Nieminen</dt>
<dd>area_illumination, cubic pattern and cubic warp, fractal patterns, other contributions</dd>
</dl>
<p class="Note"><strong>Past POV-Team Members and other Note-Worthy Contributors: (alphabetically)</strong></p>
<dl>
<dt>Claire Amundsen</dt>
<dd>Tutorials for the POV-Ray User Guide</dd>
<dt>Steve Anger</dt>
<dd>POV-Ray 2.0/3.0 developer</dd>
<dt>Randy Antler</dt>
<dd>MS-Dos display code enhancements</dd>
<dt>John Baily</dt>
<dd>RLE targa code</dd>
<dt>Eric Barish</dt>
<dd>Ground fog code</dd>
<dt>Thomas Baier</dt>
<dd>3.1 team member, tester</dd>
<dt>Dieter Bayer</dt>
<dd>Wrote sor, lathe, prism, media and many other features</dd>
<dt>Anthony Bennett</dt>
<dd>Scene files, documentation</dd>
<dt>Kendall Bennett</dt>
<dd>PMODE library support, paletted display code in Windows version</dd>
<dt>Steve Bennett</dt>
<dd>GIF support</dd>
<dt>Thomas Bily</dt>
<dd>Implicit and parametric surfaces</dd>
<dt>Dale C. Brodin</dt>
<dd>Alpha &amp; Beta tester, forum support</dd>
<dt>Eric Brown</dt>
<dd>no_image, no_reflection, orient and circular area_light</dd>
<dt>Matthew Corey Brown</dt>
<dd>pigment function, warps, projected_through</dd>
<dt>David Buck</dt>
<dd>Original author of DKBTrace, POV-Ray 1.0 developer</dd>
<dt>Edward Coffey</dt>
<dd>Fade_color</dd>
<dt>Aaron Collins</dt>
<dd>Co-author of DKBTrace 2.12, POV-Ray 1.0 developer</dd>
<dt>Chris Dailey</dt>
<dd>POV-Ray 3.0 developer</dd>
<dt>Steve Demlow</dt>
<dd>POV-Ray 3.0 developer</dd>
<dt>Andreas Dilger</dt>
<dd>Former Unix coordinator, Linux developer, PNG support</dd>
<dt>Joris van Drunen Littel</dt>
<dd>Mac beta tester</dd>
<dt>Alexander Enzmann</dt>
<dd>POV-Ray 1.0/2.0/3.0 developer</dd>
<dt>Dan Farmer</dt>
<dd>POV-Ray 1.0/2.0/3.0 developer, author of many features, sample scenes, and textures</dd>
<dt>Daniel Fenner</dt>
<dd>Splines</dd>
<dt>Hans-Detlev Fink</dt>
<dd>Slope pattern</dd>
<dt>Charles Fusner</dt>
<dd>Blob, lathe and prism tutorial tutorials for the POV-Ray User Guide</dd>
<dt>Mark Gordon</dt>
<dd>Unix developer</dd>
<dt>David Harr</dt>
<dd>Mac balloon help and palette code</dd>
<dt>Michael Hazelgrove</dt>
<dd>Scene files</dd>
<dt>Jimmy Hoeks</dt>
<dd>Original Help file for v3.0 Windows user interface</dd>
<dt>Christoph Hormann</dt>
<dd>Scene &amp; include files, documentation, insert menu</dd>
<dt>Chris Huff</dt>
<dd>Object pattern, Interior texture, inverse transform</dd>
<dt>Bob Hughes</dt>
<dd>Scene and include files, insert menu</dd>
<dt>Ingo Janssen</dt>
<dd>Scene &amp; include files, documentation</dd>
<dt>Mike Hough</dt>
<dd>Spherical camera, Media method 2, uv_mapping for bicubic_patch</dd>
<dt>Rune S. Johansen</dt>
<dd>Scene &amp; include files, documentation</dd>
<dt>Greg M. Johnson</dt>
<dd>Scene files</dd>
<dt>Terry Kanakis</dt>
<dd>Camera fix</dd>
<dt>Kari Kivisalo</dt>
<dd>Ground fog code</dd>
<dt>Alan Kong</dt>
<dd>Alpha &amp; Beta tester, forum support</dd>
<dt>Lutz Kretzschmar</dt>
<dd>Moray author, MS-DOS 24-bit VGA, part of the anti-aliasing code</dd>
<dt>Tor Olav Kristensen</dt>
<dd>Scene files</dd>
<dt>Jochen Lippert</dt>
<dd>Sphere_sweep</dd>
<dt>Friedrich Lohm&uuml;lller</dt>
<dd>Version 3.7 scene file clean-up and Windows insert menus.</dd>
<dt>Charles Marslett</dt>
<dd>MS-Dos display code</dd>
<dt>Pascal Massimino</dt>
<dd>Fractal objects</dd>
<dt>Jim McElhiney</dt>
<dd>POV-Ray 3.0 developer</dd>
<dt>Robert A. Mickelsen</dt>
<dd>Artist, 3.0 docs contributor</dd>
<dt>Mike Miller</dt>
<dd>Artist, scene files, stones.inc</dd>
<dt>Fabien Mosen</dt>
<dd>Scene &amp; include files</dd>
<dt>Douglas Muir</dt>
<dd>Bump maps, height fields</dd>
<dt>Joel Newkirk</dt>
<dd>Former Amiga developer</dd>
<dt><a href="http://www.igorlabs.com/jim/jim.html">Jim Nitchals</a></dt>
<dd>Mac version, scene files (Jim - famous also for his anti-spam crusades -
<a href="http://www.wired.com/culture/lifestyle/news/1998/06/12832">passed away on 5 June 1998</a>
but his contributions to POV-Ray and responsible use of the internet will not be forgotten)
</dd>
<dt>Paul Novak</dt>
<dd>Texture contributions</dd>
<dt>Wolfgang Ortmann</dt>
<dd>Splines</dd>
<dt>Dave Park</dt>
<dd>Amiga support, AGA video code</dd>
<dt>Redaelli Paolo</dt>
<dd>Former Amiga developer</dd>
<dt>Ron Parker</dt>
<dd>Core code, jack-of-all-trades</dd>
<dt>David Payne</dt>
<dd>RLE targa code</dd>
<dt>Ansgar Philippsen</dt>
<dd>Smooth color triangle</dd>
<dt>Jaime Vives Piqueres</dt>
<dd>Mesh camera scene files</dd>
<dt>Bill Pulver</dt>
<dd>Time code</dd>
<dt>Anton Raves</dt>
<dd>Alpha &amp; Beta tester, Mac contributor</dd>
<dt>Dan Richardson</dt>
<dd>3.0 Docs</dd>
<dt>Tim Rowley</dt>
<dd>PPM and Windows-specific BMP image format support</dd>
<dt>Eduard Schwan</dt>
<dd>Former Mac version coordinator, mosaic preview, docs</dd>
<dt>Daniel Skarda</dt>
<dd>Implicit and parametric surfaces</dd>
<dt>Wlodzimierz Skiba</dt>
<dd>Windows BMP file support, non-Microsoft compiler build support for POVWIN versions prior to 3.7, bug fixes</dd>
<dt>Robert Skinner</dt>
<dd>Noise functions</dd>
<dt>Yvo &amp; Ren&eacute; Smellenbergh</dt>
<dd>Clock &amp; Image_size keywords</dd>
<dt>Erkki Sondergaard</dt>
<dd>Alpha &amp; Beta tester, 3.0 Scene files</dd>
<dt>Ryoichi Suzuki</dt>
<dd>Isosurfaces</dd>
<dt>Zsolt Szalavari</dt>
<dd>Halo code which was later turned into media</dd>
<dt>Scott Taylor</dt>
<dd>Leopard and onion textures</dd>
<dt>Gilles Tran</dt>
<dd>Scene files</dd>
<dt>Massimo Valentini</dt>
<dd>Optimizations to sphere_sweep and superellipsoid, bug fixes.</dd>
<dt>John VanSickle</dt>
<dd>Cells pattern</dd>
<dt>Mark Wagner</dt>
<dd>Splines</dd>
<dt>Timothy Wegner</dt>
<dd>Fractal objects, PNG support</dd>
<dt>Drew Wells</dt>
<dd>POV-Ray 1.0 developer, POV-Ray 1.0 team coordinator</dd>
<dt>Daren Scot Wilson</dt>
<dd>Dispersion</dd>
<dt>Chris Young</dt>
<dd>Team leader 1992-1999, parser code, other contributions too numerous to list here</dd>
</dl>
<p class="Note"><strong>Other Support:</strong></p>
<dl>
<dt>Brendan Scott of <a href="http://opensourcelaw.biz/">Open Source Law</a> and the folks at <a href="http://www.softwarefreedom.org/">The Software Freedom Law Center</a>
<dd>Advice and drafting of documents regarding licensing.
<dt><a href="http://www.intel.com/">Intel Corp.</a> and <a href="http://www.amd.com/">AMD Corp.</a>
<dd>Optimization advice, performance testing.
<dt><a href="http://www.digicert.com/">DigiCert Inc.</a>
<dd>Code signing and SSL certificates.
<dt><a href="http://www.ntplx.net/">Netplex LLC</a> (Connecticut's largest independent ISP)
<dd>Dedicated hosting of the POV-Ray server for more than ten years.
</dl>
</div>
<a name="t2_5_7"></a>
<div class="content-level-h3" contains="Thanks" id="t2_5_7">
<h3>2.5.7 Thanks</h3>
<p>
We would like to take this opportunity to thank everyone who has helped make POV-Ray what it is over the past two decades.
We can't possibly list you all here but be assured that we appreciate your support - without you this project would not be here!
</p>
</div>
<a name="t2_5_8"></a>
<div class="content-level-h3" contains="What to do if you don't have POV-Ray" id="t2_5_8">
<h3>2.5.8 What to do if you don't have POV-Ray</h3>
<p>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.</p>
<p class="Note"><b>Note:</b> We <b>strongly recommend</b> that you obtain POV-Ray directly from <a href="http://www.povray.org/download/">the POV-Ray website</a> (or your company/school intranet, if applicable). Some websites have been known to re-package the POV-Ray software in an installer that bundles adware. If the installation package is not signed by <i>Persistence of Vision Raytracer Pty. Ltd.</i>, then <b>it is not from us</b> and may have been tampered with. The official installer supplied by us contains <i>no adware or third-party software of any kind.</i></p>
</div>
<a name="t2_5_8_1"></a>
<div class="content-level-h4" contains="Which Version of POV-Ray should you use?" id="t2_5_8_1">
<h4>2.5.8.1 Which Version of POV-Ray should you use?</h4>
<p>POV-Ray can be used under Windows&trade; XP or newer, x86 Apple&trade; Macintosh&trade;, and Linux&trade; &amp;
UNIX&trade; on numerous hardware platforms. See section <a href="t2_5.html#t2_5_8_2">Where to Find POV-Ray Files</a> for more info.</p>
<p>
Older versions of POV-Ray supported many platforms no longer in regular use; we preserve such old versions in our <a href="http://www.povray.org/ftp/pub/povray/Old-Versions/">archives</a> if you wish to access them.</p>
<p>
If your platform is not supported and you are proficient in compiling
source code programs written in C/C++, then you may like to retrieve
the source for POV-Ray from our website and attempt to built it
yourself.</p>
</div>
<a name="t2_5_8_1_1"></a>
<div class="content-level-h5" contains="Microsoft Windows" id="t2_5_8_1_1">
<h5>2.5.8.1.1 Microsoft Windows</h5>
<p>
As of POV-Ray version 3.7 the Windows versions of POV-Ray require Windows XP and later.
We have had reports of v3.7 working on Windows 2000 with all service packs installed, however
we cannot guarantee that this will remain the case indefinitely, as we do not test against W2K.
If you have an older system you may like to look at POV-Ray version 3.6, which works on Windows 95
and up.
</p>
<p>
We supply both 32 and 64-bit versions of POVWIN which have been tested to run with AMD&trade; and
Intel&trade; x86 and x64 processors. As of version 3.7, SMP systems are fully supported; by default
POVWIN will use all available processing cores when rendering. For 32-bit systems, we supply both
non-SSE2 and SSE2-enabled binaries. The installer will determine which is the most appropriate for
your system at install time and install shortcuts to that executable (note however all executables are
always placed in the bin folder regardless of the platform). For 64-bit systems there is only a single
executable - a separate SSE version is not needed as all x64 CPU's have SSE2 available.
</p>
<p>
We recommend 100mb free disk space (the installation does not require that much, but room for
temporary files during rendering is generally required) and at least 1gb free (i.e. available to
POV-Ray at runtime) memory. POV's actual RAM requirement can vary greatly; it's possible to render
files with as little as 30mb of free RAM, but typical needs are much greater than this. The actual
use depends on what SDL files are provided for rendering and the image output options in use. We
<em>strongly</em> recommend that you have sufficient RAM for rendering your scene files without
resorting to swap - if a render hits the pagefile regularly it will completely destroy rendering
performance.
</p>
<p class="Note">
<strong>Note:</strong> Accelerated graphics hardware (such as 3D cards) will not improve rendering
performance. This technology is not currently aimed at raytracing but is, generally speaking,
optimized for single-precision scanline rendering as used in games or other simulations. POV-Ray,
like all raytracers, requires double-precision floating-point in order to be able to accurately
render scenes.
</p>
<ul>
<li>Required POV-Ray files: the setup EXE supplied via our <a href="http://www.povray.org/download/">download page</a>.
This file will be timestamped and digitally signed by <em>Persistence of Vision Raytracer Pty Ltd</em>.
The key in use at the time of writing is issued by DigiCert and remains current until August 2014.
All binaries (DLL's and EXE's) supplied by us for version 3.7 are also signed by this key.
If you come across an unsigned binary (or one signed by anyone other than the above) that claims
to be an official release, <i>it is not from us and should not be used</i>.</li>
<li>Optional: The source code is not needed to use POV-Ray. It is provided for the curious and adventurous.
See the source-code links on our <a href="http://www.povray.org/download/">download page</a>.
</li>
</ul>
<p class="Note"><Strong>Note:</strong> System admins/lab techs who wish to do custom installs of POV-Ray for Windows should refer to the windows platform-specific documentation for more details.</p>
</div>
<a name="t2_5_8_1_2"></a>
<div class="content-level-h5" contains="Apple Macintosh" id="t2_5_8_1_2">
<h5>2.5.8.1.2 Apple Macintosh</h5>
<p>Documentation Pending</p>
</div>
<a name="t2_5_8_1_3"></a>
<div class="content-level-h5" contains="Linux/Unix" id="t2_5_8_1_3">
<h5>2.5.8.1.3 Linux/Unix</h5>
<p>
Because Linux/Unix run on a wide variety of hardware, the POV-Team
cannot provide executable versions for every variation. Instead, we distribute
a generic, portable C++ source code package suitable for generating binaries
on Unix or Unix-like platforms. It is known to compile and run correctly on recent versions of
GNU/Linux for x86/x64, and should be fairly straightforward to get running on any
POSIX-compliant Unix-like operating system with a Bourne-compatible shell.
</p>
<p>
You will need a recent C++ compiler which follows the ISO C++ standard
as closely as possible (g++ 4.x is known to work), and (optionally) SVGAlib
for GNU/Linux based systems if you wish to enable render preview display.
</p>
<p>Required POV-Ray files:
povray-3.7.tar.bz2 - the C++ source code of POV-Ray for UNIX.
Contains generic parts and UNIX/Linux specific parts. The package includes
sample scenes, standard include files and documentation in HTML and plain
text ASCII format.
</p>
</div>
<a name="t2_5_8_1_4"></a>
<div class="content-level-h5" contains="All Versions" id="t2_5_8_1_4">
<h5>2.5.8.1.4 All Versions</h5>
<p>All versions of the program share the same ray-tracing features like shapes, lighting and textures. In other words, a Windows PC can create the same pictures as a supercomputer as long as it has enough memory and you are willing to wait enough time.</p>
</div>
<a name="t2_5_8_2"></a>
<div class="content-level-h4" contains="Where to Find POV-Ray Files" id="t2_5_8_2">
<h4>2.5.8.2 Where to Find POV-Ray Files</h4>
<p>
The internet home of POV-Ray is reachable on the World Wide Web at <a href="http://www.povray.org/">http://www.povray.org/</a>.
There is also an active user community in our <a href="http://www.povray.org/groups.html">forums</a>.
</p>
</div>
<a name="t2_5_9"></a>
<div class="content-level-h3" contains="Suggested Reading" id="t2_5_9">
<h3>2.5.9 Suggested Reading</h3>
<p>Beside the POV-Ray material mentioned in Books, Magazines and
CD-ROMs, there are several good books or periodicals that you should be
able to locate in your local computer book store or your local university
library.</p>
<ol>
<li>&quot;An Introduction to Ray tracing&quot; Andrew S. Glassner (editor)
<br>ISBN 0-12-286160-4; Academic Press; 1989</li>
<li>&quot;Realistic Image Synthesis Using Photon Mapping&quot; Henrik Wann
Jensen
<br>ISBN: 1568811470; AK Peters; July 2001
</li>
<li>&quot;3D Artist&quot; Newsletter, &quot;The Only Newsletter about
Affordable PC 3D Tools and Techniques&quot;)
<br>Publisher: Bill Allen; P.O. Box
4787; Santa Fe, NM 87502-4787; (505) 982-3532</li>
<li>&quot;Image Synthesis: Theory and Practice&quot; Nadia Magnenat-Thalman
and Daniel Thalmann;
<br>Springer-Verlag; 1987</li>
<li>&quot;The RenderMan Companion&quot; Steve Upstill;
<br>Addison Wesley; 1989</li>
<li>&quot;Graphics Gems&quot; Andrew S. Glassner (editor);
<br>Academic Press; 1990</li>
<li>&quot;Fundamentals of Interactive Computer Graphics&quot; J. D. Foley
and A. Van Dam;
<br>ISBN 0-201-14468-9; Addison-Wesley 1983</li>
<li>&quot;Computer Graphics: Principles and Practice (2nd Ed.)&quot; J. D.
Foley, A. van Dam, J. F. Hughes;
<br>ISBN 0-201-12110-7; Addison-Wesley; 1990</li>
<li>&quot;Computers, Pattern, Chaos, and Beauty&quot; Clifford Pickover;
<br>St.Martin's Press;</li>
<li>&quot;SIGGRAPH Conference Proceedings&quot;;
<br>Association for Computing Machinery Special Interest Group on Computer Graphics</li>
<li>&quot;IEEE Computer Graphics and Applications&quot;; The Computer
Society;
<br>10662, Los Vaqueros Circle; Los Alamitos, CA 90720</li>
</ol>
<p>
The POV-Team <strong>no longer recommends</strong> books from CRC Press.
</p>
</div>
</div>
</div>
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