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  <title>Possible Java 3D 1.4 Improvements</title>
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<h2>Possible Java&nbsp;3D<sup><font size="-2">TM</font></sup> 1.4
Improvements</h2>
<p>This page lists the possible improvements to the implementation
of Java&nbsp;3D<sup><font size="-2">TM</font></sup> version 1.4 that do
not require API changes. Click on the following
link to see a description of the <a href="proposed-changes.html">proposed
Java&nbsp;3D
1.4 API changes</a>.
</p>
<h4>List of possible improvements</h4>
<p>Here is a list of newly-filed issues that represent possible
improvements to Java&nbsp;3D. This list is not prioritized, nor are any
of
these improvements guaranteed to be implemented.
</p>
<ul>
  <li>Texture optimizations:</li>
  <ul>
    <li>Sub-texture image optimization (<a
 href="https://java3d.dev.java.net/issues/show_bug.cgi?id=117">Issue 117</a>)</li>
    <li>Native support for ABGR format (<a
 href="https://java3d.dev.java.net/issues/show_bug.cgi?id=85">Issue 85</a>)</li>
    <li>Use Pixel Buffer Objects (<a
 href="https://java3d.dev.java.net/issues/show_bug.cgi?id=118">Issue 118</a>)</li>
    <li>Use OpenGL automatic mipmap generation (<a
 href="https://java3d.dev.java.net/issues/show_bug.cgi?id=126">Issue 126</a>)</li>
  </ul>
  <li>Geometry optimization:</li>
  <ul>
    <li>Use Vertex Buffer Objects (<a
 href="https://java3d.dev.java.net/issues/show_bug.cgi?id=119">Issue 119</a>)</li>
  </ul>
  <li>SetLive/ ClearLive MT cleanup (<a
 href="https://java3d.dev.java.net/issues/show_bug.cgi?id=120">Issue 120</a>)</li>
  <li>Stop using finalize() to cleanup state (<a
 href="https://java3d.dev.java.net/issues/show_bug.cgi?id=121">Issue 121</a>)</li>
  <li>Collection class usage: (<a
 href="https://java3d.dev.java.net/issues/show_bug.cgi?id=122">Issue 122</a>)</li>
  <ul>
    <li>Use Set versus List when appropriate</li>
    <li>Use generic Collection rather than j3d-specific classes (e.g.,
UnorderList)</li>
  </ul>
  <li>Eliminate memory free lists (<a
 href="https://java3d.dev.java.net/issues/show_bug.cgi?id=123">Issue 123</a>)</li>
  <li>Improve picking performance / reduce garbage generation (<a
 href="https://java3d.dev.java.net/issues/show_bug.cgi?id=124">Issue 124</a>)</li>
  <li>Optimize CanvasViewCache to eliminate redundant operations &amp;
garbage generation (<a
 href="https://java3d.dev.java.net/issues/show_bug.cgi?id=125">Issue 125</a>)
  </li>
</ul>
<p>Note that these new issues are in addition to any other issues that
have been filed. For a complete list, <a
 href="https://java3d.dev.java.net/issues/buglist.cgi?Submit+query=Submit+query&amp;component=java3d&amp;issue_status=NEW&amp;issue_status=STARTED&amp;issue_status=REOPENED">query
the list of issues</a>.
</p>
<p><font color="gray">Page last updated &#8212;
$Date$
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