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Blender itself is released under the GNU General Public License. Blender Documentation is released under the Open Content License. Both these licenses are reported here below.

Blender Foundation has prepared a license of its own, modelled on the basis of Perl's Artistic License, aimed at Blender artists wishing to distribute their Blender files, Python scripts, movies and images freely, yet maintaining a greater control over their creations.

These three licenses are reported here below.

GNU General Public License

		    GNU GENERAL PUBLIC LICENSE
		       Version 2, June 1991

 Copyright (C) 1989, 1991 Free Software Foundation, Inc.
 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
 Everyone is permitted to copy and distribute verbatim copies
 of this license document, but changing it is not allowed.

			    Preamble

  The licenses for most software are designed to take away your
freedom to share and change it.  By contrast, the GNU General Public
License is intended to guarantee your freedom to share and change free
software--to make sure the software is free for all its users.  This
General Public License applies to most of the Free Software
Foundation's software and to any other program whose authors commit to
using it.  (Some other Free Software Foundation software is covered by
the GNU Library General Public License instead.)  You can apply it to
your programs, too.

  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
this service 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.

  To protect your rights, we need to make restrictions that forbid
anyone to deny you these rights or to ask you to surrender the rights.
These restrictions translate to certain responsibilities for you if you
distribute copies of the software, or if you modify it.

  For example, if you distribute copies of such a program, whether
gratis or for a fee, you must give the recipients all the rights that
you have.  You must make sure that they, too, receive or can get the
source code.  And you must show them these terms so they know their
rights.

  We protect your rights with two steps: (1) copyright the software, and
(2) offer you this license which gives you legal permission to copy,
distribute and/or modify the software.

  Also, for each author's protection and ours, we want to make certain
that everyone understands that there is no warranty for this free
software.  If the software is modified by someone else and passed on, we
want its recipients to know that what they have is not the original, so
that any problems introduced by others will not reflect on the original
authors' reputations.

  Finally, any free program is threatened constantly by software
patents.  We wish to avoid the danger that redistributors of a free
program will individually obtain patent licenses, in effect making the
program proprietary.  To prevent this, we have made it clear that any
patent must be licensed for everyone's free use or not licensed at all.

  The precise terms and conditions for copying, distribution and
modification follow.

		    GNU GENERAL PUBLIC LICENSE
   TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION

  0. This License applies to any program or other work which contains
a notice placed by the copyright holder saying it may be distributed
under the terms of this General Public License.  The "Program", below,
refers to any such program or work, and a "work based on the Program"
means either the Program or any derivative work under copyright law:
that is to say, a work containing the Program or a portion of it,
either verbatim or with modifications and/or translated into another
language.  (Hereinafter, translation is included without limitation in
the term "modification".)  Each licensee is addressed as "you".

Activities other than copying, distribution and modification are not
covered by this License; they are outside its scope.  The act of
running the Program is not restricted, and the output from the Program
is covered only if its contents constitute a work based on the
Program (independent of having been made by running the Program).
Whether that is true depends on what the Program does.

  1. You may copy and distribute verbatim copies of the Program's
source code as you receive it, in any medium, provided that you
conspicuously and appropriately publish on each copy an appropriate
copyright notice and disclaimer of warranty; keep intact all the
notices that refer to this License and to the absence of any warranty;
and give any other recipients of the Program a copy of this License
along with the Program.

You may charge a fee for the physical act of transferring a copy, and
you may at your option offer warranty protection in exchange for a fee.

  2. You may modify your copy or copies of the Program or any portion
of it, thus forming a work based on the Program, and copy and
distribute such modifications or work under the terms of Section 1
above, provided that you also meet all of these conditions:

    a) You must cause the modified files to carry prominent notices
    stating that you changed the files and the date of any change.

    b) You must cause any work that you distribute or publish, that in
    whole or in part contains or is derived from the Program or any
    part thereof, to be licensed as a whole at no charge to all third
    parties under the terms of this License.

    c) If the modified program normally reads commands interactively
    when run, you must cause it, when started running for such
    interactive use in the most ordinary way, to print or display an
    announcement including an appropriate copyright notice and a
    notice that there is no warranty (or else, saying that you provide
    a warranty) and that users may redistribute the program under
    these conditions, and telling the user how to view a copy of this
    License.  (Exception: if the Program itself is interactive but
    does not normally print such an announcement, your work based on
    the Program is not required to print an announcement.)

These requirements apply to the modified work as a whole.  If
identifiable sections of that work are not derived from the Program,
and can be reasonably considered independent and separate works in
themselves, then this License, and its terms, do not apply to those
sections when you distribute them as separate works.  But when you
distribute the same sections as part of a whole which is a work based
on the Program, the distribution of the whole must be on the terms of
this License, whose permissions for other licensees extend to the
entire whole, and thus to each and every part regardless of who wrote it.

Thus, it is not the intent of this section to claim rights or contest
your rights to work written entirely by you; rather, the intent is to
exercise the right to control the distribution of derivative or
collective works based on the Program.

In addition, mere aggregation of another work not based on the Program
with the Program (or with a work based on the Program) on a volume of
a storage or distribution medium does not bring the other work under
the scope of this License.

  3. You may copy and distribute the Program (or a work based on it,
under Section 2) in object code or executable form under the terms of
Sections 1 and 2 above provided that you also do one of the following:

    a) Accompany it with the complete corresponding machine-readable
    source code, which must be distributed under the terms of Sections
    1 and 2 above on a medium customarily used for software interchange; or,

    b) Accompany it with a written offer, valid for at least three
    years, to give any third party, for a charge no more than your
    cost of physically performing source distribution, a complete
    machine-readable copy of the corresponding source code, to be
    distributed under the terms of Sections 1 and 2 above on a medium
    customarily used for software interchange; or,

    c) Accompany it with the information you received as to the offer
    to distribute corresponding source code.  (This alternative is
    allowed only for noncommercial distribution and only if you
    received the program in object code or executable form with such
    an offer, in accord with Subsection b above.)

The source code for a work means the preferred form of the work for
making modifications to it.  For an executable work, complete source
code means all the source code for all modules it contains, plus any
associated interface definition files, plus the scripts used to
control compilation and installation of the executable.  However, as a
special exception, the source code distributed need not include
anything that is normally distributed (in either source or binary
form) with the major components (compiler, kernel, and so on) of the
operating system on which the executable runs, unless that component
itself accompanies the executable.

If distribution of executable or object code is made by offering
access to copy from a designated place, then offering equivalent
access to copy the source code from the same place counts as
distribution of the source code, even though third parties are not
compelled to copy the source along with the object code.

  4. You may not copy, modify, sublicense, or distribute the Program
except as expressly provided under this License.  Any attempt
otherwise to copy, modify, sublicense or distribute the Program is
void, and will automatically terminate your rights under this License.
However, parties who have received copies, or rights, from you under
this License will not have their licenses terminated so long as such
parties remain in full compliance.

  5. You are not required to accept this License, since you have not
signed it.  However, nothing else grants you permission to modify or
distribute the Program or its derivative works.  These actions are
prohibited by law if you do not accept this License.  Therefore, by
modifying or distributing the Program (or any work based on the
Program), you indicate your acceptance of this License to do so, and
all its terms and conditions for copying, distributing or modifying
the Program or works based on it.

  6. Each time you redistribute the Program (or any work based on the
Program), the recipient automatically receives a license from the
original licensor to copy, distribute or modify the Program subject to
these terms and conditions.  You may not impose any further
restrictions on the recipients' exercise of the rights granted herein.
You are not responsible for enforcing compliance by third parties to
this License.

  7. If, as a consequence of a court judgment or allegation of patent
infringement or for any other reason (not limited to patent issues),
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
distribute so as to satisfy simultaneously your obligations under this
License and any other pertinent obligations, then as a consequence you
may not distribute the Program at all.  For example, if a patent
license would not permit royalty-free redistribution of the Program by
all those who receive copies directly or indirectly through you, then
the only way you could satisfy both it and this License would be to
refrain entirely from distribution of the Program.

If any portion of this section is held invalid or unenforceable under
any particular circumstance, the balance of the section is intended to
apply and the section as a whole is intended to apply in other
circumstances.

It is not the purpose of this section to induce you to infringe any
patents or other property right claims or to contest validity of any
such claims; this section has the sole purpose of protecting the
integrity of the free software distribution system, which is
implemented by public license practices.  Many people have made
generous contributions to the wide range of software distributed
through that system in reliance on consistent application of that
system; it is up to the author/donor to decide if he or she is willing
to distribute software through any other system and a licensee cannot
impose that choice.

This section is intended to make thoroughly clear what is believed to
be a consequence of the rest of this License.

  8. If the distribution and/or use of the Program is restricted in
certain countries either by patents or by copyrighted interfaces, the
original copyright holder who places the Program under this License
may add an explicit geographical distribution limitation excluding
those countries, so that distribution is permitted only in or among
countries not thus excluded.  In such case, this License incorporates
the limitation as if written in the body of this License.

  9. The Free Software Foundation may publish revised and/or new versions
of the 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 a version number of this License which applies to it and "any
later version", you have the option of following the terms and conditions
either of that version or of any later version published by the Free
Software Foundation.  If the Program does not specify a version number of
this License, you may choose any version ever published by the Free Software
Foundation.

  10. If you wish to incorporate parts of the Program into other free
programs whose distribution conditions are different, write to the author
to ask for permission.  For software which is copyrighted by the Free
Software Foundation, write to the Free Software Foundation; we sometimes
make exceptions for this.  Our decision will be guided by the two goals
of preserving the free status of all derivatives of our free software and
of promoting the sharing and reuse of software generally.

			    NO WARRANTY

  11. BECAUSE THE PROGRAM IS LICENSED FREE OF CHARGE, 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.

  12. IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MAY MODIFY AND/OR
REDISTRIBUTE 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.

		     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
convey 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 General Public License as published by
    the Free Software Foundation; either version 2 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 General Public License for more details.

    You should have received a copy of the GNU General Public License
    along with this program; if not, write to the Free Software
    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA


Also add information on how to contact you by electronic and paper mail.

If the program is interactive, make it output a short notice like this
when it starts in an interactive mode:

    Gnomovision version 69, Copyright (C) year name of author
    Gnomovision comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
    This is free software, and you are welcome to redistribute it
    under certain conditions; type `show c' for details.

The hypothetical commands `show w' and `show c' should show the appropriate
parts of the General Public License.  Of course, the commands you use may
be called something other than `show w' and `show c'; they could even be
mouse-clicks or menu items--whatever suits your program.

You should also get your employer (if you work as a programmer) or your
school, if any, to sign a "copyright disclaimer" for the program, if
necessary.  Here is a sample; alter the names:

  Yoyodyne, Inc., hereby disclaims all copyright interest in the program
  `Gnomovision' (which makes passes at compilers) written by James Hacker.

  <signature of Ty Coon>, 1 April 1989
  Ty Coon, President of Vice

This General Public License does not permit incorporating your program into
proprietary programs.  If your program is a subroutine library, you may
consider it more useful to permit linking proprietary applications with the
library.  If this is what you want to do, use the GNU Library General
Public License instead of this License.

Open Content License

OpenContent License (OPL)
Version 1.0, July 14, 1998.

This document outlines the principles underlying the OpenContent (OC) 
movement and may be redistributed provided it remains unaltered. 
For legal purposes, this document is the license under which 
OpenContent is made available for use.

The original version of this document may be found at 
http://opencontent.org/opl.shtml

LICENSE

Terms and Conditions for Copying, Distributing, and Modifying

Items other than copying, distributing, and modifying the Content 
with which this license was distributed (such as using, etc.) are 
outside the scope of this license.

1. You may copy and distribute exact replicas of the OpenContent 
(OC) as you receive it, in any medium, provided that you conspicuously 
and appropriately publish on each copy an appropriate copyright notice 
and disclaimer of warranty; keep intact all the notices that refer to 
this License and to the absence of any warranty; and give any other 
recipients of the OC a copy of this License along with the OC. You may 
at your option charge a fee for the media and/or handling involved in 
creating a unique copy of the OC for use offline, you may at your 
option offer instructional support for the OC in exchange for a fee, 
or you may at your option offer warranty in exchange for a fee. You 
may not charge a fee for the OC itself. You may not charge a fee 
for the sole service of providing access to and/or use of the OC via 
a network (e.g. the Internet), whether it be via the world wide web, 
FTP, or any other method.

2. You may modify your copy or copies of the OpenContent or any portion 
of it, thus forming works based on the Content, and distribute such 
modifications or work under the terms of Section 1 above, provided that 
you also meet all of these conditions:

a) You must cause the modified content to carry prominent notices 
stating that you changed it, the exact nature and content of the 
changes, and the date of any change.

b) You must cause any work that you distribute or publish, that in 
whole or in part contains or is derived from the OC or any part 
thereof, to be licensed as a whole at no charge to all third parties 
under the terms of this License, unless otherwise permitted under 
applicable Fair Use law.

These requirements apply to the modified work as a whole. If 
identifiable sections of that work are not derived from the OC, and 
can be reasonably considered independent and separate works in 
themselves, then this License, and its terms, do not apply to those 
sections when you distribute them as separate works. But when you 
distribute the same sections as part of a whole which is a work based 
on the OC, the distribution of the whole must be on the terms of this 
License, whose permissions for other licensees extend to the entire 
whole, and thus to each and every part regardless of who wrote it. 
Exceptions are made to this requirement to release modified works 
free of charge under this license only in compliance with Fair Use 
law where applicable.

3. You are not required to accept this License, since you have not 
signed it. However, nothing else grants you permission to copy, 
distribute or modify the OC. These actions are prohibited by law 
if you do not accept this License. Therefore, by distributing or 
translating the OC, or by deriving works herefrom, you indicate 
your acceptance of this License to do so, and all its terms and 
conditions for copying, distributing or translating the OC.

NO WARRANTY

4. BECAUSE THE OPENCONTENT (OC) IS LICENSED FREE OF CHARGE, THERE 
IS NO WARRANTY FOR THE OC, TO THE EXTENT PERMITTED BY APPLICABLE 
LAW. EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT HOLDERS 
AND/OR OTHER PARTIES PROVIDE THE OC "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 OF USE OF THE OC IS WITH YOU. 
SHOULD THE OC PROVE FAULTY, INACCURATE, OR OTHERWISE UNACCEPTABLE 
YOU ASSUME THE COST OF ALL NECESSARY REPAIR OR CORRECTION.

5. IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN 
WRITING WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MAY 
MIRROR AND/OR REDISTRIBUTE THE OC 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 OC, EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED 
OF THE POSSIBILITY OF SUCH DAMAGES.

Blender Artistic License

This is the License designed for Tutorials, .blend example files, still images and animations. It is more restrictive than the Blender Documentation License and is thought to protect more the intellectual rights of the artist producing the Tutorial/Blend File/Still/Animation. (Loosely adapted from Perl Artistic License)

Authors can of course choose the less restrictive Blender Documentation License, but no material will be hosted on the Foundation Site unless it abides to one of these two licenses.

It is highly advisable to prepare a zipped package containing, besides the Tutorial etc. files, a file called LICENSE containing this license.

If you are distributing a .blend file alone it is still advisable to add a LICENSE file, otherwise you can add the license in a text buffer of Blender and make sure it shows up when opening the file.

If you are releasing binary files like printable tutorials and you don't want to include the whole license (why wouldn't you?) or are releasing single images or animations, you can also add, in the text, in a corner of the image or in the last frames the wording:

(C) *Year* *your name* - released under Blender Artistic License - www.blender.org

Herebelow, the License Itself:

The "Blender Artistic License"

Preamble:

The intent of this document is to state the conditions under which a
Tutorial guide, a Blender file, a still image or an animation (in the 
following all four will be addressed as 'Item') may be copied, such 
that the Copyright Holder maintains some semblance of artistic control 
over the development of the Item, while giving the users of the package 
the right to use and distribute the Item in a more-or-less customary 
fashion, plus the right to make reasonable modifications.

Definitions:

	"Item" refers to the collection of files distributed by the
	Copyright Holder, and derivatives of that collection of files
	created through textual modification, binary modification,
	image processing, format translation and/or modifications 
	using Blender.

	"Standard Version" refers to such a Item if it has not been
	modified, or has been modified in accordance with the wishes
	of the Copyright Holder as specified below.

	"Copyright Holder" is whoever is named in the copyright or
	copyrights for the Item.

	"You" is you, if you're thinking about copying or distributing
	this Item.

	"Reasonable copying fee" is whatever you can justify on the
	basis of media cost, duplication charges, time of people involved,
	and so on.  (You will not be required to justify it to the
	Copyright Holder, but only to the computing community at large
	as a market that must bear the fee.)

	"Freely Available" means that no fee is charged for the Item
	itself, though there may be fees involved in handling the Item.
	It also means that recipients of the Item may redistribute it
	under the same conditions they received it.

1. You may make and give away verbatim copies of the Standard Version of 
this Item without restriction, provided that you duplicate all of the 
original copyright notices and associated disclaimers.

2. You may apply any modification derived from the Public Domain or from 
the Copyright Holder.  An Item modified in such a way shall still be 
considered the Standard Version.

3. You may otherwise modify your copy of this Item in any way, provided
that you insert a prominent notice in each changed file - except images - 
stating how and when you changed that file, that you keep note in a separate
text file of any change/deletion/addition of images, and provided that 
you do at least ONE of the following:

    a) place your modifications in the Public Domain or otherwise make them
    Freely Available, such as by posting said modifications to Usenet or
    an equivalent medium, or placing the modifications on a major archive
    site such as Blender Foundation www.blender.org, or by allowing the 
    Copyright Holder to include your modifications in the Standard Version 
    of the Package.

    b) use the modified Item only within your corporation or organization.

    c) make other distribution arrangements with the Copyright Holder.

4. You may distribute this Item electronically, provided that you do at 
least ONE of the following:

    a) distribute a Standard Version together with instructions (in a 
    README file, in a text window of Blender) on where to get the 
    Standard Version.

    b) make other distribution arrangements with the Copyright Holder.

5. If this Item is a Tutorial documentation or a still image you can 
redistribute it as hard copy, provided that you do at least ONE of 
the following:

    a) distribute a printout of Standard Version with at most mere
    typesetting changes, stating clearly who is the Copyright
    holder and where to get the Standard Version.

    b) make other distribution arrangements with the Copyright Holder.

6. You may charge a reasonable copying fee for any distribution of this
Item.  You may not charge a fee for this Item itself.  However,
you may distribute this Item in aggregate with other (possibly
commercial) programs as part of a larger (possibly commercial) software
distribution provided that you do not advertise this Item as a
product of your own.

6. If this Item is a Blender File the rendered output from it obtained
via Blender does not automatically fall under the copyright of this Item, 
but belongs to whoever generated them, and may be sold commercially, and 
may be aggregated with this Item. 

7. The name of the Copyright Holder may not be used to endorse or promote
products derived from this Item without specific prior written permission.

8. THIS ITEM IS PROVIDED "AS IS" AND WITHOUT ANY EXPRESS OR
IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE.