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==Appendices==
 
==Appendices==
 
<!--<sectiondesc desc=<"tutorial appendices">--->
 
<!--<sectiondesc desc=<"tutorial appendices">--->
===POV-Ray User License===
 
<!--<indexentry primary "POVLEGAL.DOC" "POVLEGAL" "License" "pov-ray license" "user license" "POV-Ray Legal Document">--->
 
<div class="LicenseHeader">
 
<center>
 
POV-Ray License Agreement<br>
 
GENERAL LICENSE AGREEMENT<br>
 
FOR PERSONAL USE<br>
 
Persistence of Vision Ray Tracer&trade; (POV-Ray&trade;)<br>
 
Version 3.7 License<br>
 
and Terms &amp; Conditions of Use<br>
 
version of 27 October 2004<br>
 
(also known as POVLEGAL.DOC)<br>
 
</center>
 
</div>
 
  
 +
===Contacting the Authors===
 
<p>
 
<p>
Please read through the terms and conditions of this license carefully. This
+
If you have a question regarding commercial use or distribution of  
license is a binding legal agreement between you, the 'User' (an individual
+
POV-Ray, please contact the development team coordinator via the address listed at http://www.povray.org/povlegal.html.
or single entity) and Persistence of Vision Raytracer Pty. Ltd. ACN 105 891
 
870 (herein also referred to as the &quot;Company&quot;), a company incorporated in the
 
state of Victoria, Australia, for the product known as the &quot;Persistence of
 
Vision Ray Tracer&trade;&quot;, also referred to herein as &quot;POV-Ray&trade;&quot;.
 
</p>
 
  
<p>
+
Please do not email us directly for technical support - use the below-mentioned forums. We generally do not answer emails requesting
YOUR ATTENTION IS PARTICULARLY DRAWN TO THE DISCLAIMER OF WARRANTY AND NO
+
support if the sender has not first asked in the forums or read the documentation.
LIABILITY AND INDEMNITY PROVISIONS. TO USE THE PERSISTENCE OF VISION RAY
 
TRACER (&quot;POV-RAY&quot;) 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.
 
</p>
 
 
 
<p>
 
<strong>INTRODUCTION</strong>
 
</p>
 
 
 
<p>
 
This document pertains to the use of the Persistence of Vision Ray Tracer&trade;
 
(also known as POV-Ray&trade;). 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
 
&quot;Software&quot;. 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 .
 
</p>
 
 
 
<p>
 
<strong>USAGE PROVISIONS</strong>
 
</p>
 
 
 
<p>
 
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.
 
</p>
 
 
 
<p>
 
Please refer to http://www.povray.org/povlegal.html for licenses covering
 
distribution of the Software and works including the Software.
 
</p>
 
 
 
<p>
 
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.
 
</p>
 
 
 
<p>
 
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.
 
</p>
 
 
 
<p>
 
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:
 
<ol type="a">
 
<li>the Company has explicitly released that party in writing from
 
the consequences of their non compliance; or</li>
 
 
 
<li>both of the following are true:
 
<ol type="i">
 
<li>the installation or use of the Software is without the User being aware
 
of the abovementioned violation; and</li>
 
 
 
<li>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.</li>
 
</ol>
 
</li>
 
</ol>
 
</p>
 
 
 
<p>
 
<strong>COPYRIGHT</strong>
 
</p>
 
 
 
<p>
 
Copyright &#169;  1991-2003, Persistence of Vision Team.<br>
 
Copyright &#169;  2003-2010, Persistence of Vision Raytracer Pty. Ltd.<br>
 
Windows version Copyright &#169;  1996-2010, Christopher Cason.<br>
 
</p>
 
 
 
<p>
 
Copyright subsists in this Software which is protected by Australian and
 
international copyright laws. The Software is NOT PUBLIC DOMAIN.
 
</p>
 
 
 
<p>
 
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.
 
</p>
 
 
 
<p>
 
<strong>DISCLAIMER OF WARRANTY</strong>
 
</p>
 
 
 
<p>
 
This Software is provided on an &quot;AS IS&quot; 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.
 
</p>
 
 
 
<p>
 
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.
 
</p>
 
 
 
<p>
 
<strong>NO LIABILITY</strong>
 
</p>
 
 
 
<p>
 
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 (&quot;Company Associates&quot;) 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.
 
</p>
 
 
 
<p>
 
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.
 
</p>
 
 
 
<p>
 
<strong>INDEMNITY</strong>
 
</p>
 
 
 
<p>
 
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.
 
</p>
 
 
 
<p>
 
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.
 
</p>
 
 
 
<p>
 
<strong>HIGH RISK ACTIVITIES</strong>
 
 
</p>
 
</p>
 +
<p>See our [http://www.povray.org/ web site]
 +
and particularly our [http://www.povray.org/groups.html forums] for online peer
 +
support.
  
<p>
+
The forums have a bug reporting group; please however discuss the issue in the [http://news.povray.org/povray.general povray.general]
This Software and the output produced by this Software is not fault-tolerant
+
group and check our [https://github.com/POV-Ray/povray/issues issue tracker] on GitHub prior to lodging a report as we may already know of the issue (or it might not even be a bug).</p>
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 (&quot;High Risk
 
Activities&quot;). 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.
 
</p>
 
 
 
<p>
 
<strong>MISCELLANEOUS</strong>
 
</p>
 
  
<p>
+
===POV-Ray License===
This Agreement constitutes the complete agreement concerning this license.
+
{{#indexentry:POVLEGAL.DOC}}
Any changes to this agreement must be in writing and may take the form of
+
{{#indexentry:POVLEGAL}}
notifications by the Company to you, or through posting notifications on the  
+
{{#indexentry:License}}
Company website. THE USE OF THIS SOFTWARE BY ANY PERSON OR ENTITY IS
+
{{#indexentry:pov-ray license}}
EXPRESSLY MADE CONDITIONAL ON THEIR ACCEPTANCE OF THE TERMS SET FORTH HEREIN.
+
{{#indexentry:user license}}
 +
{{#indexentry:POV-Ray Legal Document}}
 +
<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 v3.7 beta-test and release candidates.
 
</p>
 
</p>
  
<p>
+
<div class="license-text"><pre>
Except where explicitly stated otherwise herein, if any provision of this  
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                          Version 3, 19 November 2007
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provisions).
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 +
   
 +
      6. Conveying Non-Source Forms.
 +
   
 +
      You may convey a covered work in object code form under the terms
 +
    of sections 4 and 5, provided that you also convey the
 +
    machine-readable Corresponding Source under the terms of this License,
 +
    in one of these ways:
 +
   
 +
        a) Convey the object code in, or embodied in, a physical product
 +
        (including a physical distribution medium), accompanied by the
 +
        Corresponding Source fixed on a durable physical medium
 +
        customarily used for software interchange.
 +
   
 +
        b) Convey the object code in, or embodied in, a physical product
 +
        (including a physical distribution medium), accompanied by a
 +
        written offer, valid for at least three years and valid for as
 +
        long as you offer spare parts or customer support for that product
 +
        model, to give anyone who possesses the object code either (1) a
 +
        copy of the Corresponding Source for all the software in the
 +
        product that is covered by this License, on a durable physical
 +
        medium customarily used for software interchange, for a price no
 +
        more than your reasonable cost of physically performing this
 +
        conveying of source, or (2) access to copy the
 +
        Corresponding Source from a network server at no charge.
 +
   
 +
        c) Convey individual copies of the object code with a copy of the
 +
        written offer to provide the Corresponding Source.  This
 +
        alternative is allowed only occasionally and noncommercially, and
 +
        only if you received the object code with such an offer, in accord
 +
        with subsection 6b.
 +
   
 +
        d) Convey the object code by offering access from a designated
 +
        place (gratis or for a charge), and offer equivalent access to the
 +
        Corresponding Source in the same way through the same place at no
 +
        further charge.  You need not require recipients to copy the
 +
        Corresponding Source along with the object code.  If the place to
 +
        copy the object code is a network server, the Corresponding Source
 +
        may be on a different server (operated by you or a third party)
 +
        that supports equivalent copying facilities, provided you maintain
 +
        clear directions next to the object code saying where to find the
 +
        Corresponding Source.  Regardless of what server hosts the
 +
        Corresponding Source, you remain obligated to ensure that it is
 +
        available for as long as needed to satisfy these requirements.
 +
   
 +
        e) Convey the object code using peer-to-peer transmission, provided
 +
        you inform other peers where the object code and Corresponding
 +
        Source of the work are being offered to the general public at no
 +
        charge under subsection 6d.
 +
   
 +
      A separable portion of the object code, whose source code is excluded
 +
    from the Corresponding Source as a System Library, need not be
 +
    included in conveying the object code work.
 +
   
 +
      A "User Product" is either (1) a "consumer product", which means any
 +
    tangible personal property which is normally used for personal, family,
 +
    or household purposes, or (2) anything designed or sold for incorporation
 +
    into a dwelling.  In determining whether a product is a consumer product,
 +
    doubtful cases shall be resolved in favor of coverage.  For a particular
 +
    product received by a particular user, "normally used" refers to a
 +
    typical or common use of that class of product, regardless of the status
 +
    of the particular user or of the way in which the particular user
 +
    actually uses, or expects or is expected to use, the product.  A product
 +
    is a consumer product regardless of whether the product has substantial
 +
    commercial, industrial or non-consumer uses, unless such uses represent
 +
    the only significant mode of use of the product.
 +
   
 +
      "Installation Information" for a User Product means any methods,
 +
    procedures, authorization keys, or other information required to install
 +
    and execute modified versions of a covered work in that User Product from
 +
    a modified version of its Corresponding Source.  The information must
 +
    suffice to ensure that the continued functioning of the modified object
 +
    code is in no case prevented or interfered with solely because
 +
    modification has been made.
 +
   
 +
      If you convey an object code work under this section in, or with, or
 +
    specifically for use in, a User Product, and the conveying occurs as
 +
    part of a transaction in which the right of possession and use of the
 +
    User Product is transferred to the recipient in perpetuity or for a
 +
    fixed term (regardless of how the transaction is characterized), the
 +
    Corresponding Source conveyed under this section must be accompanied
 +
    by the Installation Information.  But this requirement does not apply
 +
    if neither you nor any third party retains the ability to install
 +
    modified object code on the User Product (for example, the work has
 +
    been installed in ROM).
 +
   
 +
      The requirement to provide Installation Information does not include a
 +
    requirement to continue to provide support service, warranty, or updates
 +
    for a work that has been modified or installed by the recipient, or for
 +
    the User Product in which it has been modified or installed.  Access to a
 +
    network may be denied when the modification itself materially and
 +
    adversely affects the operation of the network or violates the rules and
 +
    protocols for communication across the network.
 +
   
 +
      Corresponding Source conveyed, and Installation Information provided,
 +
    in accord with this section must be in a format that is publicly
 +
    documented (and with an implementation available to the public in
 +
    source code form), and must require no special password or key for
 +
    unpacking, reading or copying.
 +
   
 +
      7. Additional Terms.
 +
   
 +
      "Additional permissions" are terms that supplement the terms of this
 +
    License by making exceptions from one or more of its conditions.
 +
    Additional permissions that are applicable to the entire Program shall
 +
    be treated as though they were included in this License, to the extent
 +
    that they are valid under applicable law.  If additional permissions
 +
    apply only to part of the Program, that part may be used separately
 +
    under those permissions, but the entire Program remains governed by
 +
    this License without regard to the additional permissions.
 +
   
 +
      When you convey a copy of a covered work, you may at your option
 +
    remove any additional permissions from that copy, or from any part of
 +
    it.  (Additional permissions may be written to require their own
 +
    removal in certain cases when you modify the work.)  You may place
 +
    additional permissions on material, added by you to a covered work,
 +
    for which you have or can give appropriate copyright permission.
 +
   
 +
      Notwithstanding any other provision of this License, for material you
 +
    add to a covered work, you may (if authorized by the copyright holders of
 +
    that material) supplement the terms of this License with terms:
 +
   
 +
        a) Disclaiming warranty or limiting liability differently from the
 +
        terms of sections 15 and 16 of this License; or
 +
   
 +
        b) Requiring preservation of specified reasonable legal notices or
 +
        author attributions in that material or in the Appropriate Legal
 +
        Notices displayed by works containing it; or
 +
   
 +
        c) Prohibiting misrepresentation of the origin of that material, or
 +
        requiring that modified versions of such material be marked in
 +
        reasonable ways as different from the original version; or
 +
   
 +
        d) Limiting the use for publicity purposes of names of licensors or
 +
        authors of the material; or
 +
   
 +
        e) Declining to grant rights under trademark law for use of some
 +
        trade names, trademarks, or service marks; or
 +
   
 +
        f) Requiring indemnification of licensors and authors of that
 +
        material by anyone who conveys the material (or modified versions of
 +
        it) with contractual assumptions of liability to the recipient, for
 +
        any liability that these contractual assumptions directly impose on
 +
        those licensors and authors.
 +
   
 +
      All other non-permissive additional terms are considered "further
 +
    restrictions" within the meaning of section 10.  If the Program as you
 +
    received it, or any part of it, contains a notice stating that it is
 +
    governed by this License along with a term that is a further
 +
    restriction, you may remove that term. If a license document contains
 +
    a further restriction but permits relicensing or conveying under this
 +
    License, you may add to a covered work material governed by the terms
 +
    of that license document, provided that the further restriction does
 +
    not survive such relicensing or conveying.
 +
   
 +
      If you add terms to a covered work in accord with this section, you
 +
    must place, in the relevant source files, a statement of the
 +
    additional terms that apply to those files, or a notice indicating
 +
    where to find the applicable terms.
 +
   
 +
      Additional terms, permissive or non-permissive, may be stated in the
 +
    form of a separately written license, or stated as exceptions;
 +
    the above requirements apply either way.
 +
   
 +
      8. Termination.
 +
   
 +
      You may not propagate or modify a covered work except as expressly
 +
    provided under this License.  Any attempt otherwise to propagate or
 +
    modify it is void, and will automatically terminate your rights under
 +
    this License (including any patent licenses granted under the third
 +
    paragraph of section 11).
 +
   
 +
      However, if you cease all violation of this License, then your
 +
    license from a particular copyright holder is reinstated (a)
 +
    provisionally, unless and until the copyright holder explicitly and
 +
    finally terminates your license, and (b) permanently, if the copyright
 +
    holder fails to notify you of the violation by some reasonable means
 +
    prior to 60 days after the cessation.
 +
   
 +
      Moreover, your license from a particular copyright holder is
 +
    reinstated permanently if the copyright holder notifies you of the
 +
    violation by some reasonable means, this is the first time you have
 +
    received notice of violation of this License (for any work) from that
 +
    copyright holder, and you cure the violation prior to 30 days after
 +
    your receipt of the notice.
 +
   
 +
      Termination of your rights under this section does not terminate the
 +
    licenses of parties who have received copies or rights from you under
 +
    this License.  If your rights have been terminated and not permanently
 +
    reinstated, you do not qualify to receive new licenses for the same
 +
    material under section 10.
 +
   
 +
      9. Acceptance Not Required for Having Copies.
 +
   
 +
      You are not required to accept this License in order to receive or
 +
    run a copy of the Program.  Ancillary propagation of a covered work
 +
    occurring solely as a consequence of using peer-to-peer transmission
 +
    to receive a copy likewise does not require acceptance.  However,
 +
    nothing other than this License grants you permission to propagate or
 +
    modify any covered work.  These actions infringe copyright if you do
 +
    not accept this License.  Therefore, by modifying or propagating a
 +
    covered work, you indicate your acceptance of this License to do so.
 +
   
 +
      10. Automatic Licensing of Downstream Recipients.
 +
   
 +
      Each time you convey a covered work, the recipient automatically
 +
    receives a license from the original licensors, to run, modify and
 +
    propagate that work, subject to this License.  You are not responsible
 +
    for enforcing compliance by third parties with this License.
 +
   
 +
      An "entity transaction" is a transaction transferring control of an
 +
    organization, or substantially all assets of one, or subdividing an
 +
    organization, or merging organizations.  If propagation of a covered
 +
    work results from an entity transaction, each party to that
 +
    transaction who receives a copy of the work also receives whatever
 +
    licenses to the work the party's predecessor in interest had or could
 +
    give under the previous paragraph, plus a right to possession of the
 +
    Corresponding Source of the work from the predecessor in interest, if
 +
    the predecessor has it or can get it with reasonable efforts.
 +
   
 +
      You may not impose any further restrictions on the exercise of the
 +
    rights granted or affirmed under this License.  For example, you may
 +
    not impose a license fee, royalty, or other charge for exercise of
 +
    rights granted under this License, and you may not initiate litigation
 +
    (including a cross-claim or counterclaim in a lawsuit) alleging that
 +
    any patent claim is infringed by making, using, selling, offering for
 +
    sale, or importing the Program or any portion of it.
 +
   
 +
      11. Patents.
 +
   
 +
      A "contributor" is a copyright holder who authorizes use under this
 +
    License of the Program or a work on which the Program is based.  The
 +
    work thus licensed is called the contributor's "contributor version".
 +
   
 +
      A contributor's "essential patent claims" are all patent claims
 +
    owned or controlled by the contributor, whether already acquired or
 +
    hereafter acquired, that would be infringed by some manner, permitted
 +
    by this License, of making, using, or selling its contributor version,
 +
    but do not include claims that would be infringed only as a
 +
    consequence of further modification of the contributor version.  For
 +
    purposes of this definition, "control" includes the right to grant
 +
    patent sublicenses in a manner consistent with the requirements of
 +
    this License.
 +
   
 +
      Each contributor grants you a non-exclusive, worldwide, royalty-free
 +
    patent license under the contributor's essential patent claims, to
 +
    make, use, sell, offer for sale, import and otherwise run, modify and
 +
    propagate the contents of its contributor version.
 +
   
 +
      In the following three paragraphs, a "patent license" is any express
 +
    agreement or commitment, however denominated, not to enforce a patent
 +
    (such as an express permission to practice a patent or covenant not to
 +
    sue for patent infringement).  To "grant" such a patent license to a
 +
    party means to make such an agreement or commitment not to enforce a
 +
    patent against the party.
 +
   
 +
      If you convey a covered work, knowingly relying on a patent license,
 +
    and the Corresponding Source of the work is not available for anyone
 +
    to copy, free of charge and under the terms of this License, through a
 +
    publicly available network server or other readily accessible means,
 +
    then you must either (1) cause the Corresponding Source to be so
 +
    available, or (2) arrange to deprive yourself of the benefit of the
 +
    patent license for this particular work, or (3) arrange, in a manner
 +
    consistent with the requirements of this License, to extend the patent
 +
    license to downstream recipients.  "Knowingly relying" means you have
 +
    actual knowledge that, but for the patent license, your conveying the
 +
    covered work in a country, or your recipient's use of the covered work
 +
    in a country, would infringe one or more identifiable patents in that
 +
    country that you have reason to believe are valid.
 +
   
 +
      If, pursuant to or in connection with a single transaction or
 +
    arrangement, you convey, or propagate by procuring conveyance of, a
 +
    covered work, and grant a patent license to some of the parties
 +
    receiving the covered work authorizing them to use, propagate, modify
 +
    or convey a specific copy of the covered work, then the patent license
 +
    you grant is automatically extended to all recipients of the covered
 +
    work and works based on it.
 +
   
 +
      A patent license is "discriminatory" if it does not include within
 +
    the scope of its coverage, prohibits the exercise of, or is
 +
    conditioned on the non-exercise of one or more of the rights that are
 +
    specifically granted under this License.  You may not convey a covered
 +
    work if you are a party to an arrangement with a third party that is
 +
    in the business of distributing software, under which you make payment
 +
    to the third party based on the extent of your activity of conveying
 +
    the work, and under which the third party grants, to any of the
 +
    parties who would receive the covered work from you, a discriminatory
 +
    patent license (a) in connection with copies of the covered work
 +
    conveyed by you (or copies made from those copies), or (b) primarily
 +
    for and in connection with specific products or compilations that
 +
    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;.
 +
</pre></div>
  
 +
===Contact Information===
 
<p>
 
<p>
<strong>CONTACT INFORMATION</strong>
+
If you wish to contact us for purposes other than technical support, the following means are available:
 
</p>
 
</p>
 
 
<p>
 
<p>
License inquiries can be made via email; please use the following address
+
<b>Via email:</b>
(but see below prior to emailing) :
 
 
</p>
 
</p>
 
 
<p>
 
<p>
 
&nbsp;&nbsp;&nbsp;&nbsp;<code>team-coord-[three-letter month]-[four-digit year]@povray.org</code>
 
&nbsp;&nbsp;&nbsp;&nbsp;<code>team-coord-[three-letter month]-[four-digit year]@povray.org</code>
Line 289: Line 718:
 
Old email addresses may be deleted at our discretion.
 
Old email addresses may be deleted at our discretion.
 
</p>
 
</p>
 
+
<p class="Note">
<p>
+
<b>Note:</b> Please do not send bug reports or technical support requests to this address.
Note that the above address may change for reasons other than that given above;
+
Use [http://news.povray.org/ our forums] or [https://github.com/POV-Ray/povray/issues  issue tracker]
please check the version of this document on the WWW at http://www.povray.org/povlegal.html
+
for technical support or bug reports.
for the current address. Note that your inability or failure to contact us
 
for any reason is not an excuse for violating this license.
 
 
</p>
 
</p>
  
 
<p>
 
<p>
Do NOT send any attachments of any sort other than by prior arrangement.
+
<b>Via postal mail:</b>
EMAIL MESSAGES INCLUDING ATTACHMENTS WILL BE DELETED UNREAD.
 
 
</p>
 
</p>
  
 
<p>
 
<p>
The following postal address is only for official license business. Please
+
The following postal address is only for official business. Please
 
note that it is preferred that initial queries about licensing be made via
 
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
 
email; postal mail should only be used when email is not possible, or when
Line 318: Line 744:
  
 
===Support Library Licenses===
 
===Support Library Licenses===
<!--<indexentry primary "Support Library Licenses" "License, support library">--->
+
{{#indexentry:Support Library Licenses}}
<center><b>Licenses for Support Libraries used by POV-Ray</b></center>
+
{{#indexentry:License, support library}}
 +
<center><strong>Licenses for Support Libraries used by POV-Ray</strong></center>
  
 
====OpenEXR====
 
====OpenEXR====
Line 357: Line 784:
 
NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
 
NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
 
SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.</p>
 
SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.</p>
 
  
 
===Citing POV-Ray in Academic Publications===
 
===Citing POV-Ray in Academic Publications===
<!--<indexentry "reference" "citations">--->
+
{{#indexentry:reference}}
 +
{{#indexentry:citations}}
 
<p>To reference POV-Ray (e.g. in academic papers), you may use one of the below:</p>
 
<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>
 
<pre>
   Persistence of Vision Pty. Ltd. (2010)
+
   Persistence of Vision Pty. Ltd. (2017)
     Persistence of Vision Raytracer (Version 3.7)
+
     Persistence of Vision Raytracer (Version 3.8)
 
     [Computer software].
 
     [Computer software].
 
       Retrieved from http://www.povray.org/download/
 
       Retrieved from http://www.povray.org/download/
Line 375: Line 803:
  
 
<pre>  
 
<pre>  
   Persistence of Vision Pty. Ltd. (2010).
+
   Persistence of Vision Pty. Ltd. (2017).
   Persistence of Vision (TM) Raytracer.
+
   Persistence of Vision Raytracer.
 
   Persistence of Vision Pty. Ltd., Williamstown, Victoria, Australia.
 
   Persistence of Vision Pty. Ltd., Williamstown, Victoria, Australia.
 
   http://www.povray.org/
 
   http://www.povray.org/
 
</pre>
 
</pre>
  
===The POV-Team===
+
===Contributors to POV-Ray===
<p>Following is a list in alphabetic order of all people who have ever worked
+
<p class="Note"><strong>Primary POV-Ray v3.7 Core Architects/Developers: (alphabetically)</strong></p>
on the POV-Ray Team or who have made a note-worthy contribution.
 
</p>
 
 
 
<p><strong>Current POV-Team Members</strong></p>
 
 
<dl>
 
<dl>
 
<dt>Chris Cason<!--</dt>--->
 
<dt>Chris Cason<!--</dt>--->
<dd>Member 1993-, Team leader 1999-, windows version author, other contributions<!--</dd>--->
+
<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>--->
 
<dt>Thorsten Fr&ouml;hlich<!--</dt>--->
<dd>Mac developer<!--</dd>--->
+
<dd>Developer 1996-2013, Mac developer, frontend-backend messaging system, SMP implementation, too many other contributions to list here<!--</dd>--->
 
<dt>Christoph Lipka<!--</dt>--->
 
<dt>Christoph Lipka<!--</dt>--->
<dd>Core code improvements (notably radiosity) <!--</dd>--->
+
<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>--->
 
<dt>Nicolas Calimet<!--</dt>--->
 
<dd>UNIX development<!--</dd>--->
 
<dd>UNIX development<!--</dd>--->
 +
<dt>J&eacute;r&ocirc;me Grimbert<!--</dt>--->
 +
<dd>Mapping warps, image meta-data, the ovus and lemon objects, several list patterns, additional render block items, and other core code contributions.<!--</dd>--->
 
<dt>James Holsenback<!--</dt>--->
 
<dt>James Holsenback<!--</dt>--->
<dd>3.7 documentation, POV-Wiki<!--</dd>--->
+
<dd>v3.7 and v3.8 documentation, POV-Wiki, various Unix/Linux, and scene file contributions<!--</dd>--->
 
<dt>Christoph Hormann<!--</dt>--->
 
<dt>Christoph Hormann<!--</dt>--->
 
<dd>UNIX development<!--</dd>--->
 
<dd>UNIX development<!--</dd>--->
Line 404: Line 834:
 
<dt>Juha Nieminen<!--</dt>--->
 
<dt>Juha Nieminen<!--</dt>--->
 
<dd>area_illumination, cubic pattern and cubic warp, fractal patterns, other contributions<!--</dd>--->
 
<dd>area_illumination, cubic pattern and cubic warp, fractal patterns, other contributions<!--</dd>--->
 +
<dt>William F. Pokorny<!--</dt>--->
 +
<dd>Countless fixes, scene description language consistency improvements, other contributions<!--</dd>--->
 
</dl>
 
</dl>
  
<p><strong>Past POV-Team Members and other Contributors</strong></p>
+
<p class="Note"><strong>Past POV-Team Members and other Note-Worthy Contributors: (alphabetically)</strong></p>
 
<dl>
 
<dl>
 
<dt>Claire Amundsen<!--</dt>--->
 
<dt>Claire Amundsen<!--</dt>--->
 
<dd>Tutorials for the POV-Ray User Guide<!--</dd>--->
 
<dd>Tutorials for the POV-Ray User Guide<!--</dd>--->
 
<dt>Steve Anger<!--</dt>--->
 
<dt>Steve Anger<!--</dt>--->
<dd>POV-Ray 2.0/3.0 developer<!--</dd>--->
+
<dd>POV-Ray v2.0/v3.0 developer<!--</dd>--->
 
<dt>Randy Antler<!--</dt>--->
 
<dt>Randy Antler<!--</dt>--->
 
<dd>MS-Dos display code enhancements<!--</dd>--->
 
<dd>MS-Dos display code enhancements<!--</dd>--->
Line 419: Line 851:
 
<dd>Ground fog code<!--</dd>--->
 
<dd>Ground fog code<!--</dd>--->
 
<dt>Thomas Baier<!--</dt>--->
 
<dt>Thomas Baier<!--</dt>--->
<dd>3.1 team member, tester<!--</dd>--->
+
<dd>v3.1 team member, tester<!--</dd>--->
 
<dt>Dieter Bayer<!--</dt>--->
 
<dt>Dieter Bayer<!--</dt>--->
 
<dd>Wrote sor, lathe, prism, media and many other features<!--</dd>--->
 
<dd>Wrote sor, lathe, prism, media and many other features<!--</dd>--->
Line 443: Line 875:
 
<dd>Co-author of DKBTrace 2.12, POV-Ray 1.0 developer<!--</dd>--->
 
<dd>Co-author of DKBTrace 2.12, POV-Ray 1.0 developer<!--</dd>--->
 
<dt>Chris Dailey<!--</dt>--->
 
<dt>Chris Dailey<!--</dt>--->
<dd>POV-Ray 3.0 developer<!--</dd>--->
+
<dd>POV-Ray v3.0 developer<!--</dd>--->
 
<dt>Steve Demlow<!--</dt>--->
 
<dt>Steve Demlow<!--</dt>--->
<dd>POV-Ray 3.0 developer<!--</dd>--->
+
<dd>POV-Ray v3.0 developer<!--</dd>--->
 
<dt>Andreas Dilger<!--</dt>--->
 
<dt>Andreas Dilger<!--</dt>--->
 
<dd>Former Unix coordinator, Linux developer, PNG support<!--</dd>--->
 
<dd>Former Unix coordinator, Linux developer, PNG support<!--</dd>--->
Line 451: Line 883:
 
<dd>Mac beta tester<!--</dd>--->
 
<dd>Mac beta tester<!--</dd>--->
 
<dt>Alexander Enzmann<!--</dt>--->
 
<dt>Alexander Enzmann<!--</dt>--->
<dd>POV-Ray 1.0/2.0/3.0 developer<!--</dd>--->
+
<dd>POV-Ray v1.0/v2.0/v3.0 developer<!--</dd>--->
 
<dt>Dan Farmer<!--</dt>--->
 
<dt>Dan Farmer<!--</dt>--->
<dd>POV-Ray 1.0/2.0/3.0 developer, author of many features, sample scenes, and textures<!--</dd>--->
+
<dd>POV-Ray v1.0/v2.0/v3.0 developer, author of many features, sample scenes, and textures<!--</dd>--->
 
<dt>Daniel Fenner<!--</dt>--->
 
<dt>Daniel Fenner<!--</dt>--->
 
<dd>Splines<!--</dd>--->
 
<dd>Splines<!--</dd>--->
Line 462: Line 894:
 
<dt>Mark Gordon<!--</dt>--->
 
<dt>Mark Gordon<!--</dt>--->
 
<dd>Unix developer<!--</dd>--->
 
<dd>Unix developer<!--</dd>--->
<dt>J&eacute;r&ocirc;me Grimbert<!--</dt>--->
 
<dd>Mapping warps, image meta-data, and general bug fixes<!--</dd>--->
 
 
<dt>David Harr<!--</dt>--->
 
<dt>David Harr<!--</dt>--->
 
<dd>Mac balloon help and palette code<!--</dd>--->
 
<dd>Mac balloon help and palette code<!--</dd>--->
Line 496: Line 926:
 
<dt>Jochen Lippert<!--</dt>--->
 
<dt>Jochen Lippert<!--</dt>--->
 
<dd>Sphere_sweep<!--</dd>--->
 
<dd>Sphere_sweep<!--</dd>--->
 +
<dt>Friedrich Lohm&uuml;ller<!--</dt>--->
 +
<dd>v3.7 scene file clean-up and Windows insert menus.<!--</dd>--->
 
<dt>Charles Marslett<!--</dt>--->
 
<dt>Charles Marslett<!--</dt>--->
 
<dd>MS-Dos display code<!--</dd>--->
 
<dd>MS-Dos display code<!--</dd>--->
Line 501: Line 933:
 
<dd>Fractal objects<!--</dd>--->
 
<dd>Fractal objects<!--</dd>--->
 
<dt>Jim McElhiney<!--</dt>--->
 
<dt>Jim McElhiney<!--</dt>--->
<dd>POV-Ray 3.0 developer<!--</dd>--->
+
<dd>POV-Ray v3.0 developer<!--</dd>--->
 
<dt>Robert A. Mickelsen<!--</dt>--->
 
<dt>Robert A. Mickelsen<!--</dt>--->
<dd>Artist, 3.0 docs contributor<!--</dd>--->
+
<dd>Artist, v3.0 docs contributor<!--</dd>--->
 
<dt>Mike Miller<!--</dt>--->
 
<dt>Mike Miller<!--</dt>--->
 
<dd>Artist, scene files, stones.inc<!--</dd>--->
 
<dd>Artist, scene files, stones.inc<!--</dd>--->
Line 512: Line 944:
 
<dt>Joel Newkirk<!--</dt>--->
 
<dt>Joel Newkirk<!--</dt>--->
 
<dd>Former Amiga developer<!--</dd>--->
 
<dd>Former Amiga developer<!--</dd>--->
<dt>Juha Nieminen<!--</dt>--->
 
<dd>Fractal patterns<!--</dd>--->
 
 
<dt>[http://www.igorlabs.com/jim/jim.html Jim Nitchals]<!--</dt>--->
 
<dt>[http://www.igorlabs.com/jim/jim.html Jim Nitchals]<!--</dt>--->
 
<dd>Mac version, scene files (Jim - famous also for his anti-spam crusades -
 
<dd>Mac version, scene files (Jim - famous also for his anti-spam crusades -
[http://www.wired.com/news/culture/0,1284,12832,00.html passed away on 5 June 1998]
+
[http://www.wired.com/culture/lifestyle/news/1998/06/12832 passed away on 5 June 1998]
 
but his contributions to POV-Ray and responsible use of the internet will not be forgotten)
 
but his contributions to POV-Ray and responsible use of the internet will not be forgotten)
 
<!--</dd>--->
 
<!--</dd>--->
Line 533: Line 963:
 
<dt>Ansgar Philippsen<!--</dt>--->
 
<dt>Ansgar Philippsen<!--</dt>--->
 
<dd>Smooth color triangle<!--</dd>--->
 
<dd>Smooth color triangle<!--</dd>--->
 +
<dt>Jaime Vives Piqueres<!--</dt>--->
 +
<dd>Mesh camera scene files<!--</dd>--->
 
<dt>Bill Pulver<!--</dt>--->
 
<dt>Bill Pulver<!--</dt>--->
 
<dd>Time code<!--</dd>--->
 
<dd>Time code<!--</dd>--->
Line 538: Line 970:
 
<dd>Alpha &amp; Beta tester, Mac contributor<!--</dd>--->
 
<dd>Alpha &amp; Beta tester, Mac contributor<!--</dd>--->
 
<dt>Dan Richardson<!--</dt>--->
 
<dt>Dan Richardson<!--</dt>--->
<dd>3.0 Docs<!--</dd>--->
+
<dd>v3.0 Docs<!--</dd>--->
 
<dt>Tim Rowley<!--</dt>--->
 
<dt>Tim Rowley<!--</dt>--->
 
<dd>PPM and Windows-specific BMP image format support<!--</dd>--->
 
<dd>PPM and Windows-specific BMP image format support<!--</dd>--->
Line 545: Line 977:
 
<dt>Daniel Skarda<!--</dt>--->
 
<dt>Daniel Skarda<!--</dt>--->
 
<dd>Implicit and parametric surfaces<!--</dd>--->
 
<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 v3.7, bug fixes<!--</dd>--->
 
<dt>Robert Skinner<!--</dt>--->
 
<dt>Robert Skinner<!--</dt>--->
 
<dd>Noise functions<!--</dd>--->
 
<dd>Noise functions<!--</dd>--->
Line 550: Line 984:
 
<dd>Clock &amp; Image_size keywords<!--</dd>--->
 
<dd>Clock &amp; Image_size keywords<!--</dd>--->
 
<dt>Erkki Sondergaard<!--</dt>--->
 
<dt>Erkki Sondergaard<!--</dt>--->
<dd>Alpha &amp; Beta tester, 3.0 Scene files<!--</dd>--->
+
<dd>Alpha &amp; Beta tester, v3.0 Scene files<!--</dd>--->
 
<dt>Ryoichi Suzuki<!--</dt>--->
 
<dt>Ryoichi Suzuki<!--</dt>--->
 
<dd>Isosurfaces<!--</dd>--->
 
<dd>Isosurfaces<!--</dd>--->
Line 559: Line 993:
 
<dt>Gilles Tran<!--</dt>--->
 
<dt>Gilles Tran<!--</dt>--->
 
<dd>Scene files<!--</dd>--->
 
<dd>Scene files<!--</dd>--->
 +
<dt>Massimo Valentini<!--</dt>--->
 +
<dd>Optimizations to sphere_sweep and superellipsoid, bug fixes.<!--</dd>--->
 
<dt>John VanSickle<!--</dt>--->
 
<dt>John VanSickle<!--</dt>--->
 
<dd>Cells pattern<!--</dd>--->
 
<dd>Cells pattern<!--</dd>--->
Line 573: Line 1,009:
 
</dl>
 
</dl>
  
====Contacting the Authors====
+
<p class="Note"><strong>Other Support:</strong></p>
<p>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).</p>
 
 
 
<p>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.
 
</p>
 
<p>See our [http://www.povray.org/ web site]
 
and particularly our [http://www.povray.org/groups.html news server] for online peer
 
support. The news server has a moderated bug reporting newsgroup; please
 
however discuss the issue in the [news://news.povray.org/povray.general 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.</p>
 
<p>Finally, there is also a dedicated Technical Assistance Group consisting of
 
a number of trusted, experienced POV-Ray users.
 
</p>
 
 
 
====POV-Ray 3.6 Development====
 
<p><strong>Main 3.6 developers:</strong></p>
 
 
<dl>
 
<dl>
<dt>Chris Cason<!--</dt>--->
+
<dt>Brendan Scott of [http://opensourcelaw.biz/ Open Source Law] and the folks at [http://www.softwarefreedom.org/ The Software Freedom Law Center]
<dt>Thorsten Fr&ouml;hlich<!--</dt>--->
+
<dd>Advice and drafting of documents regarding licensing.
<dt>Nathan Kopp<!--</dt>--->
+
<dt>[http://www.intel.com/ Intel Corp.] and [http://www.amd.com/ AMD Corp.]
 +
<dd>Optimization advice, performance testing.
 +
<dt>[http://www.digicert.com/ DigiCert Inc.]
 +
<dd>Code signing and SSL certificates.
 +
<dt>[http://www.ntplx.net/ Netplex LLC] (Connecticut's largest independent ISP)
 +
<dd>Dedicated hosting of the POV-Ray server for more than ten years.
 
</dl>
 
</dl>
  
<p><strong>Contributors of patches in POV-Ray 3.6</strong></p>
+
===Thanks===
<dl>
 
<dt>Nicolas Calimet<!--</dt>--->
 
<dd>UNIX development<!--</dd>--->
 
<dt>Christoph Hormann<!--</dt>--->
 
<dd>UNIX development<!--</dd>--->
 
<dt>Wlodzimierz 'ABX' Skiba<!--</dt>--->
 
<dd>Various fixes, uv-mapping for parametric and torus<!--</dd>--->
 
<dt>Massimo Valentini<!--</dt>--->
 
<dd>Various fixes<!--</dd>--->
 
</dl>
 
  
===What to do if you don't have POV-Ray===
+
<p>
<p>This documentation assumes you already have POV-Ray installed and running
+
We would like to take this opportunity to thank everyone who has helped make POV-Ray what it is over the past two and a half decades.
however the POV-Team does distribute this file by itself in various formats
+
We can't possibly list you all here but be assured that we appreciate your support - without you this project would not be here!
including online on the internet. If you do not have POV-Ray or are not
+
</p>
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>
 
 
<!--<wikinav>--->
 
<!--<wikinav>--->
 
<br>
 
<br>
Line 633: Line 1,033:
 
[[Documentation:Tutorial Section 4#Questions and Tips|Questions and Tips]]</td>
 
[[Documentation:Tutorial Section 4#Questions and Tips|Questions and Tips]]</td>
 
<td width=50% bgcolor=#EEEEEF align=right>
 
<td width=50% bgcolor=#EEEEEF align=right>
[[Documentation:Tutorial Section 5.1#Which Version of POV-Ray should you use?|Which Version of POV-Ray should you use?]]</td></tr>
+
[[Documentation:Tutorial Section 5.1#What to do if you don't have POV-Ray|What to do if you don't have POV-Ray]]</td></tr>
 
</table>
 
</table>
 
<!--</wikinav>--->
 
<!--</wikinav>--->

Latest revision as of 15:31, 9 June 2021

This document is protected, so submissions, corrections and discussions should be held on this documents talk page.


Appendices

Contacting the Authors

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.

See our web site and particularly our forums for online peer support. The forums have a bug reporting group; please however discuss the issue in the povray.general group and check our issue tracker on GitHub prior to lodging a report as we may already know of the issue (or it might not even be a bug).

POV-Ray License

Note: The following license applies to POV-Ray version 3.7 and later. It does not apply to any earlier version, including the v3.7 beta-test and release candidates.

                        GNU AFFERO GENERAL PUBLIC LICENSE
                           Version 3, 19 November 2007
    
     Copyright (C) 2007 Free Software Foundation, Inc. <http://fsf.org/>
     Everyone is permitted to copy and distribute verbatim copies
     of this license document, but changing it is not allowed.
    
                                Preamble
    
      The GNU Affero General Public License is a free, copyleft license for
    software and other kinds of works, specifically designed to ensure
    cooperation with the community in the case of network server software.
    
      The licenses for most software and other practical works are designed
    to take away your freedom to share and change the works.  By contrast,
    our General Public Licenses are intended to guarantee your freedom to
    share and change all versions of a program--to make sure it remains free
    software for all its users.
    
      When we speak of free software, we are referring to freedom, not
    price.  Our General Public Licenses are designed to make sure that you
    have the freedom to distribute copies of free software (and charge for
    them if you wish), that you receive source code or can get it if you
    want it, that you can change the software or use pieces of it in new
    free programs, and that you know you can do these things.
    
      Developers that use our General Public Licenses protect your rights
    with two steps: (1) assert copyright on the software, and (2) offer
    you this License which gives you legal permission to copy, distribute
    and/or modify the software.
    
      A secondary benefit of defending all users' freedom is that
    improvements made in alternate versions of the program, if they
    receive widespread use, become available for other developers to
    incorporate.  Many developers of free software are heartened and
    encouraged by the resulting cooperation.  However, in the case of
    software used on network servers, this result may fail to come about.
    The GNU General Public License permits making a modified version and
    letting the public access it on a server without ever releasing its
    source code to the public.
    
      The GNU Affero General Public License is designed specifically to
    ensure that, in such cases, the modified source code becomes available
    to the community.  It requires the operator of a network server to
    provide the source code of the modified version running there to the
    users of that server.  Therefore, public use of a modified version, on
    a publicly accessible server, gives the public access to the source
    code of the modified version.
    
      An older license, called the Affero General Public License and
    published by Affero, was designed to accomplish similar goals.  This is
    a different license, not a version of the Affero GPL, but Affero has
    released a new version of the Affero GPL which permits relicensing under
    this license.
    
      The precise terms and conditions for copying, distribution and
    modification follow.
    
                           TERMS AND CONDITIONS
    
      0. Definitions.
    
      "This License" refers to version 3 of the GNU Affero General Public License.
    
      "Copyright" also means copyright-like laws that apply to other kinds of
    works, such as semiconductor masks.
    
      "The Program" refers to any copyrightable work licensed under this
    License.  Each licensee is addressed as "you".  "Licensees" and
    "recipients" may be individuals or organizations.
    
      To "modify" a work means to copy from or adapt all or part of the work
    in a fashion requiring copyright permission, other than the making of an
    exact copy.  The resulting work is called a "modified version" of the
    earlier work or a work "based on" the earlier work.
    
      A "covered work" means either the unmodified Program or a work based
    on the Program.
    
      To "propagate" a work means to do anything with it that, without
    permission, would make you directly or secondarily liable for
    infringement under applicable copyright law, except executing it on a
    computer or modifying a private copy.  Propagation includes copying,
    distribution (with or without modification), making available to the
    public, and in some countries other activities as well.
    
      To "convey" a work means any kind of propagation that enables other
    parties to make or receive copies.  Mere interaction with a user through
    a computer network, with no transfer of a copy, is not conveying.
    
      An interactive user interface displays "Appropriate Legal Notices"
    to the extent that it includes a convenient and prominently visible
    feature that (1) displays an appropriate copyright notice, and (2)
    tells the user that there is no warranty for the work (except to the
    extent that warranties are provided), that licensees may convey the
    work under this License, and how to view a copy of this License.  If
    the interface presents a list of user commands or options, such as a
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      1. Source Code.
    
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      13. Remote Network Interaction; Use with the GNU General Public License.
    
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    Program, your modified version must prominently offer all users
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      If the Program specifies that a proxy can decide which future
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      15. Disclaimer of Warranty.
    
      THERE IS NO WARRANTY FOR THE PROGRAM, TO THE EXTENT PERMITTED BY
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      17. Interpretation of Sections 15 and 16.
    
      If the disclaimer of warranty and limitation of liability provided
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                         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.
    
        <one line to give the program's name and a brief idea of what it does.>
        Copyright (C) <year>  <name of author>
    
        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 <http://www.gnu.org/licenses/>.
    
    Also add information on how to contact you by electronic and paper mail.
    
      If your software can interact with users remotely through a computer
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    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
    <http://www.gnu.org/licenses/>.

Contact Information

If you wish to contact us for purposes other than technical support, the following means are available:

Via email:

    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: Please do not send bug reports or technical support requests to this address. Use our forums or issue tracker for technical support or bug reports.

Via postal mail:

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.

    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

Copyright © 2004, Industrial Light & Magic, a division of Lucasfilm Entertainment Company Ltd. Portions contributed and copyright held by others as indicated. All rights reserved.

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:

Note: The year should be replaced with the year of your publication.

  Persistence of Vision Pty. Ltd. (2017)
    Persistence of Vision Raytracer (Version 3.8)
    [Computer software].
      Retrieved from http://www.povray.org/download/

or

 
  Persistence of Vision Pty. Ltd. (2017).
  Persistence of Vision Raytracer.
  Persistence of Vision Pty. Ltd., Williamstown, Victoria, Australia.
   http://www.povray.org/

Contributors to POV-Ray

Primary POV-Ray v3.7 Core Architects/Developers: (alphabetically)

Chris Cason
Developer 1993-, team leader 1999-, Windows version, SMP implementation, mesh camera, BSP bounding, too many other contributions to list here
Thorsten Fröhlich
Developer 1996-2013, Mac developer, frontend-backend messaging system, SMP implementation, too many other contributions to list here
Christoph Lipka
Developer 2009-, core code improvements notably radiosity, gamma handling, sslt and too many others to list

With Assistance From: (alphabetically)

Nicolas Calimet
UNIX development
Jérôme Grimbert
Mapping warps, image meta-data, the ovus and lemon objects, several list patterns, additional render block items, and other core code contributions.
James Holsenback
v3.7 and v3.8 documentation, POV-Wiki, various Unix/Linux, and scene file contributions
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
William F. Pokorny
Countless fixes, scene description language consistency improvements, other contributions

Past POV-Team Members and other Note-Worthy Contributors: (alphabetically)

Claire Amundsen
Tutorials for the POV-Ray User Guide
Steve Anger
POV-Ray v2.0/v3.0 developer
Randy Antler
MS-Dos display code enhancements
John Baily
RLE targa code
Eric Barish
Ground fog code
Thomas Baier
v3.1 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 v3.0 developer
Steve Demlow
POV-Ray v3.0 developer
Andreas Dilger
Former Unix coordinator, Linux developer, PNG support
Joris van Drunen Littel
Mac beta tester
Alexander Enzmann
POV-Ray v1.0/v2.0/v3.0 developer
Dan Farmer
POV-Ray v1.0/v2.0/v3.0 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
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
Friedrich Lohmüller
v3.7 scene file clean-up and Windows insert menus.
Charles Marslett
MS-Dos display code
Pascal Massimino
Fractal objects
Jim McElhiney
POV-Ray v3.0 developer
Robert A. Mickelsen
Artist, v3.0 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
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
v3.0 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
Wlodzimierz Skiba
Windows BMP file support, non-Microsoft compiler build support for POVWIN versions prior to v3.7, bug fixes
Robert Skinner
Noise functions
Yvo & René Smellenbergh
Clock & Image_size keywords
Erkki Sondergaard
Alpha & Beta tester, v3.0 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
Massimo Valentini
Optimizations to sphere_sweep and superellipsoid, bug fixes.
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

Other Support:

Brendan Scott of Open Source Law and the folks at The Software Freedom Law Center
Advice and drafting of documents regarding licensing.
Intel Corp. and AMD Corp.
Optimization advice, performance testing.
DigiCert Inc.
Code signing and SSL certificates.
Netplex LLC (Connecticut's largest independent ISP)
Dedicated hosting of the POV-Ray server for more than ten years.

Thanks

We would like to take this opportunity to thank everyone who has helped make POV-Ray what it is over the past two and a half 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!


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


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