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  <title>The Java 3D API Core</title>
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<p>This project contains the source code
for the core Java&nbsp;3D<sup><font size="-2">TM</font></sup> API
package, <code>javax.media.j3d</code>.</p>
<p>Related projects include: <a href="https://vecmath.dev.java.net/">vecmath</a>
(the 3D vector math package), <a
 href="https://j3d-core-utils.dev.java.net/">j3d-core-utils</a> (the
Java&nbsp;3D core utilities), and <a
 href="https://j3d-examples.dev.java.net/">j3d-examples</a> (the
Java&nbsp;3D
example programs). The vecmath and j3d-core-utils projects are required
to build j3d-core. Developers should refer to the <a
 href="build-instr.html">CVS download
and build
instructions</a> for information on downloading the source code and
building j3d-core.<br>
</p>
<p><strong><em>For all other project
information, including contributing to Java&nbsp;3D and reporting
issues,
please go to the parent <a href="https://java3d.dev.java.net/">java3d</a>
project.</em></strong></p>
<p>NOTE: The issue Tracker in this j3d-core subproject cannot be used
to file or track issues. Please use the <a
 href="https://java3d.dev.java.net/servlets/ProjectIssues">Issue Tracker</a>
in the parent java3d
project
to track issues (bugs, feature requests, etc.) for
Java&nbsp;3D-related
sub-projects.<br>
</p>
<h3><a name="License"></a>License</h3>
<p>The source code for the core Java&nbsp;3D API reference
implementation
is licensed under the <a href="https://java3d.dev.java.net/jrl.html"
 target="_blank">Java
Research License (JRL)</a> for non-commercial use. The JRL allows users
to download, build, and modify the source code in the
j3d-core project for research use, subject to the terms of the license.
</p>
<p>Java&nbsp;3D is also licensed for commercial use under a
no-fee <a href="https://java3d.dev.java.net/jdl.html">Java
Distribution License (JDL)</a>. The JDL
allows commercial use of Java&nbsp;3D with or without modification, as
long as compatibility with the entire API Specification is maintained.
This includes passing the TCK tests for Java&nbsp;3D, and retaining the
javax namespace as defined by the JCP.
</p>
<p>
The API specification will continue to evolve as part of the Java
Community Process (JCP). We welcome community participation, and
encourage developers to contribute both bug fixes and new
implementation code to the API. The combination of the JRL and the JDL
was chosen to facilitate this, while ensuring the integrity and
compatibility of the API.<br>
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