<!DOCTYPE html>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
</head>
<body>
<p>Content in the repo is individually licensed. You need to look at
the README for each model to determine the license for that model
(including geometry and textures). The directory you pointed at
contains the text of each license. If there is a piece of content
whose license is not clear, check the
<a class="moz-txt-link-freetext" href="https://github.com/KhronosGroup/glTF-Sample-Assets/blob/main/.reuse/reuse.spdx">https://github.com/KhronosGroup/glTF-Sample-Assets/blob/main/.reuse/reuse.spdx</a>
file. It has the license for each file in the repo.</p>
<p>If you find an issue with a license, please create a GitHub
comment.</p>
<p>In many cases you can copy and modify the models as you see fit.
That applies to anything with a CC0 or CC-BY license. Some models
have other licenses that may (legally) prevent you from doing so.
Most of the licenses require proper attribution. That includes
maintaining the copyright and license info. You need to check the
specific licenses. If you use a model with an embedded logo, you
MUST acknowledge proper ownership of the logo AND keep to the
usage terms. Some of the Khronos logos allow use on models
provided the usage adheres to the logo use policy. <br>
</p>
<p>All of the license information is in the metadata.json file in
each model directory (e.g.,
<a class="moz-txt-link-freetext" href="https://github.com/KhronosGroup/glTF-Sample-Assets/blob/main/Models/PotOfCoals/metadata.json">https://github.com/KhronosGroup/glTF-Sample-Assets/blob/main/Models/PotOfCoals/metadata.json</a>).<br>
</p>
<p>Leonard Daly</p>
<p><br>
</p>
<p><br>
</p>
<div class="moz-cite-prefix">On 6/6/2025 9:10 PM, John Carlson
wrote:<br>
</div>
<blockquote type="cite"
cite="mid:CAGC3UEnQ3EidU+fFtpPidm+YKVjRYfm3=Uym7FeRC5kuUE_0OA@mail.gmail.com">
<meta http-equiv="content-type" content="text/html; charset=UTF-8">
<div dir="auto">Is there anyway someone can clarify licenses for
data in this repository?</div>
<div dir="auto"><br>
</div>
<div dir="auto"><br>
</div>
<div dir="auto">
<div><a
href="https://github.com/KhronosGroup/glTF-Sample-Assets/tree/main/LICENSES"
moz-do-not-send="true" class="moz-txt-link-freetext">https://github.com/KhronosGroup/glTF-Sample-Assets/tree/main/LICENSES</a></div>
<br>
</div>
<div dir="auto">I’m not really wanting to touch any assets in this
repository, but where are the glTF viewer conformance models?</div>
<div dir="auto"><br>
</div>
<div dir="auto">What I want to do is convert these glTF assets to
X3D JSON with create3000’s x3d-tidy, then validate with
coderextreme’s x3dvalidate, which includes schema for X_ITE
material extensions from glTF.</div>
<div dir="auto"><br>
</div>
<div dir="auto">What I need to know is, can I put the X3D JSON
versions into a repository, without carrying all the above
licenses over.</div>
<div dir="auto"><br>
</div>
<div dir="auto">John </div>
<div dir="auto"><br>
<div class="gmail_quote gmail_quote_container" dir="auto">
<div dir="ltr" class="gmail_attr">On Fri, Jun 6, 2025 at
3:56 PM Leonard Daly via x3d-public <<a
href="mailto:x3d-public@web3d.org" moz-do-not-send="true"
class="moz-txt-link-freetext">x3d-public@web3d.org</a>>
wrote:<br>
</div>
<blockquote class="gmail_quote"
style="margin:0px 0px 0px 0.8ex;border-left-width:1px;border-left-style:solid;padding-left:1ex;border-left-color:rgb(204,204,204)">
<div>
<p>I think a few of the statements are incorrect or not
clear. My comments strictly address those items that
discuss Khronos-developed material. <br>
</p>
<p><br>
</p>
<div>On 6/6/2025 10:33 AM, Brutzman, Donald (Don) (CIV)
via x3d-public wrote:<br>
</div>
<blockquote type="cite">
<div
style="font-family:Aptos,Aptos_EmbeddedFont,Aptos_MSFontService,Calibri,Helvetica,sans-serif;font-size:11pt;color:rgb(0,0,0)">
Strategic Review</div>
<div
style="font-family:Aptos,Aptos_EmbeddedFont,Aptos_MSFontService,Calibri,Helvetica,sans-serif;font-size:11pt;color:rgb(0,0,0)">
<br>
</div>
<ul
style="margin-top:0px;margin-bottom:0px;list-style-type:disc">
<li
style="font-family:Aptos,Aptos_EmbeddedFont,Aptos_MSFontService,Calibri,Helvetica,sans-serif;font-size:11pt;color:rgb(0,0,0)">
<div
style="font-family:Aptos,Aptos_EmbeddedFont,Aptos_MSFontService,Calibri,Helvetica,sans-serif">The
work looks thorough and consistently high quality,
matching other Khronos specifications.</div>
</li>
</ul>
</blockquote>
<p>Thank you. I will pass on this praise.</p>
<p><br>
</p>
<blockquote type="cite">
<ul
style="margin-top:0px;margin-bottom:0px;list-style-type:disc">
<li
style="font-family:Aptos,Aptos_EmbeddedFont,Aptos_MSFontService,Calibri,Helvetica,sans-serif;font-size:11pt;color:rgb(0,0,0)">
<div
style="font-family:Aptos,Aptos_EmbeddedFont,Aptos_MSFontService,Calibri,Helvetica,sans-serif">The
Khronos license terms appear to be unchanged since
our prior review.</div>
</li>
<ul
style="margin-top:0px;margin-bottom:0px;list-style-type:circle">
<li
style="font-family:Aptos,Aptos_EmbeddedFont,Aptos_MSFontService,Calibri,Helvetica,sans-serif;font-size:11pt;color:rgb(0,0,0)">
<div
style="font-family:Aptos,Aptos_EmbeddedFont,Aptos_MSFontService,Calibri,Helvetica,sans-serif">Use
of the extension requires either membership as
an Adopter of Khronos IPR policy, or else
" express prior written permission of Khronos."</div>
</li>
<li
style="font-family:Aptos,Aptos_EmbeddedFont,Aptos_MSFontService,Calibri,Helvetica,sans-serif;font-size:11pt;color:rgb(0,0,0)">
<div
style="font-family:Aptos,Aptos_EmbeddedFont,Aptos_MSFontService,Calibri,Helvetica,sans-serif">Patented
materials are included in the specification
(though not specifically identified).</div>
</li>
<li
style="font-family:Aptos,Aptos_EmbeddedFont,Aptos_MSFontService,Calibri,Helvetica,sans-serif;font-size:11pt;color:rgb(0,0,0)">
<div
style="font-family:Aptos,Aptos_EmbeddedFont,Aptos_MSFontService,Calibri,Helvetica,sans-serif"><a
href="https://github.com/KhronosGroup/glTF/blob/interactivity/extensions/2.0/Khronos/KHR_interactivity/Specification.adoc#foreword"
id="m_-8781774333696577624OWAfeb5bf15-07e1-f692-c820-73a0b43754d7"
target="_blank"
style="font-family:Aptos,Aptos_EmbeddedFont,Aptos_MSFontService,Calibri,Helvetica,sans-serif"
moz-do-not-send="true"
class="moz-txt-link-freetext">https://github.com/KhronosGroup/glTF/blob/interactivity/extensions/2.0/Khronos/KHR_interactivity/Specification.adoc#foreword</a></div>
</li>
</ul>
</ul>
</blockquote>
<p><br>
</p>
<p>There has been no change to the Khronos IP policy. The
full first paragraph of statement in the draft
specification is:</p>
<blockquote>
<p>This specification is protected by copyright laws and
contains material proprietary to Khronos. Except as
described by these terms, it or any components may not
be reproduced, republished, distributed, transmitted,
displayed, broadcast, or otherwise exploited in any
manner without the express prior written permission of
Khronos.</p>
</blockquote>
<p>Note the important clause at the beginning of the
second sentence: "Except as described by these terms".
The subsequent paragraphs provide the terms,
specifically:</p>
<p><br>
</p>
<blockquote>
<p>Khronos grants a conditional copyright license to use
and reproduce the unmodified specification for any
purpose, without fee or royalty, EXCEPT no licenses to
any patent, trademark or other intellectual property
rights are granted under these terms. Parties desiring
to implement the specification <b>and </b>make use
of Khronos trademarks in relation to that
implementation, <b>and </b>receive reciprocal patent
license protection under the Khronos IP Policy must
become Adopters... [bolding is mine - ld]<br>
</p>
</blockquote>
<p>If you have no interest in using Khronos trademarks or
receiving reciprocal patent licenses, then you do not
need to become an "Adopter".</p>
<p><br>
</p>
<p>Note that the specification document is licensed as
"CC-BY 4.0".<br>
</p>
<p><br>
</p>
<blockquote type="cite"><br>
<div
style="font-family:Aptos,Aptos_EmbeddedFont,Aptos_MSFontService,Calibri,Helvetica,sans-serif;font-size:11pt;color:rgb(0,0,0)">
Technical Review</div>
<div id="m_-8781774333696577624Signature">
<ul
style="margin-top:0px;margin-bottom:0px;list-style-type:disc">
<li
style="font-family:Aptos,Aptos_EmbeddedFont,Aptos_MSFontService,Calibri,Helvetica,sans-serif;font-size:11pt;color:rgb(0,0,0)">
<div
style="font-family:Aptos,Aptos_EmbeddedFont,Aptos_MSFontService,Calibri,Helvetica,sans-serif">This
extension is for JavaScript programmers who want
to animate glTF models.</div>
</li>
</ul>
</div>
</blockquote>
<p><br>
</p>
<p>There is no programming required for the Interactivity
extension. glTF viewers that correctly implement the
specification handle the data that is stored in the glTF
file structure and act according to that data. The data
is not code (JavaScript or anything else). Also not that
"animate" means any kind of change to the model or
environment.<br>
</p>
<p><br>
</p>
<p>Leonard Daly</p>
<p><br>
</p>
<p><br>
</p>
<blockquote type="cite">
<div id="m_-8781774333696577624Signature">...
<div
style="font-family:Aptos,Aptos_EmbeddedFont,Aptos_MSFontService,Calibri,Helvetica,sans-serif;font-size:14.6667px;color:rgb(0,0,0)">
<br>
</div>
<div
style="font-family:Aptos,Aptos_EmbeddedFont,Aptos_MSFontService,Calibri,Helvetica,sans-serif;font-size:14.6667px;color:rgb(0,0,0)">
Sincerely, Don Brutzman and Dick Puk</div>
<p
style="margin:0in;font-family:Calibri,sans-serif;font-size:11pt"> <span
style="font-family:"Courier New";font-size:9pt;color:rgb(0,0,0)"><br>
</span></p>
<p
style="margin:0in;font-family:Calibri,sans-serif;font-size:11pt"> <span
style="font-family:"Courier New";font-size:9pt">all the best,
Don</span></p>
</div>
</blockquote>
</div>
<div>
<blockquote type="cite">
<div id="m_-8781774333696577624Signature">
<p
style="margin:0in;font-family:Calibri,sans-serif;font-size:11pt"> <span
style="font-family:"Courier New";font-size:9pt">--</span></p>
<p
style="margin:0in;font-family:Calibri,sans-serif;font-size:11pt"> <span
style="font-family:"Courier New";font-size:9pt">Don Brutzman
Naval Postgraduate School, Code USW/Br <a
href="mailto:brutzman@nps.edu" target="_blank"
style="font-family:"Courier New""
moz-do-not-send="true"
class="moz-txt-link-freetext">brutzman@nps.edu</a></span></p>
<p
style="margin:0in;font-family:Calibri,sans-serif;font-size:11pt"> <span
style="font-family:"Courier New";font-size:9pt">Watkins 270,
MOVES Institute, Monterey CA 93943-5000 USA
+1.831.656.2149</span></p>
<p
style="margin:0in;font-family:Calibri,sans-serif;font-size:11pt"> <span
style="font-family:"Courier New";font-size:9pt">X3D graphics,
virtual worlds, navy robotics <a
href="https://faculty.nps.edu/brutzman"
target="_blank"
style="font-family:"Courier New""
moz-do-not-send="true"
class="moz-txt-link-freetext">https://faculty.nps.edu/brutzman</a></span></p>
<p
style="margin:0in;font-family:Calibri,sans-serif;font-size:11pt"> <span
style="font-family:"Courier New";font-size:9pt"> </span></p>
<span style="white-space:pre-wrap">
</span></div>
</blockquote>
<div>-- <br>
<b>Leonard Daly</b><br>
3D Systems Engineering<br>
President, Daly Realism - <i>Creating the Future</i><br>
</div>
</div>
_______________________________________________<br>
x3d-public mailing list<br>
<a href="mailto:x3d-public@web3d.org" target="_blank"
moz-do-not-send="true" class="moz-txt-link-freetext">x3d-public@web3d.org</a><br>
<a
href="http://web3d.org/mailman/listinfo/x3d-public_web3d.org"
rel="noreferrer" target="_blank" moz-do-not-send="true"
class="moz-txt-link-freetext">http://web3d.org/mailman/listinfo/x3d-public_web3d.org</a><br>
</blockquote>
</div>
</div>
</blockquote>
<div class="moz-signature">-- <br>
<b>Leonard Daly</b><br>
3D Systems Engineering<br>
President, Daly Realism - <i>Creating the Future</i><br>
</div>
</body>
</html>