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<p class="caption" role="heading"><span class="caption-text">Getting Started</span></p>
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<ul class="current">
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<li class="toctree-l1"><a class="reference internal" href="installation.html">Installation</a></li>
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<li class="toctree-l1"><a class="reference internal" href="first_nerf.html">Training your first model</a></li>
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<li class="toctree-l1"><a class="reference internal" href="existing_dataset.html">Using existing data</a></li>
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<li class="toctree-l1"><a class="reference internal" href="custom_dataset.html">Using custom data</a></li>
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<li class="toctree-l1 current current-page"><a class="current reference internal" href="#">Export geometry</a></li>
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<li class="toctree-l1"><a class="reference internal" href="data_conventions.html">Data conventions</a></li>
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<p class="caption" role="heading"><span class="caption-text">Extensions</span></p>
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<ul>
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<li class="toctree-l1"><a class="reference internal" href="../extensions/blender_addon.html">Blender VFX add-on</a></li>
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<li class="toctree-l1"><a class="reference internal" href="../extensions/maya_plugin.html">Autodesk Maya Plug-in</a></li>
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<li class="toctree-l1"><a class="reference internal" href="../extensions/unreal_engine.html">Exporting to Unreal Engine</a></li>
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<li class="toctree-l1"><a class="reference internal" href="../extensions/sdfstudio.html">SDFStudio</a></li>
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</ul>
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<p class="caption" role="heading"><span class="caption-text">NeRFology</span></p>
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<ul>
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<li class="toctree-l1 has-children"><a class="reference internal" href="../nerfology/methods/index.html">Methods</a><input class="toctree-checkbox" id="toctree-checkbox-1" name="toctree-checkbox-1" role="switch" type="checkbox"/><label for="toctree-checkbox-1"><div class="visually-hidden">Toggle child pages in navigation</div><i class="icon"><svg><use href="#svg-arrow-right"></use></svg></i></label><ul>
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<li class="toctree-l2"><a class="reference internal" href="../nerfology/methods/instant_ngp.html"> Instant-NGP</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../nerfology/methods/splat.html"> Splatfacto</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../nerfology/methods/splatw.html"> Splatfacto-W</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../nerfology/methods/in2n.html"> Instruct-NeRF2NeRF</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../nerfology/methods/igs2gs.html"> Instruct-GS2GS</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../nerfology/methods/signerf.html"> SIGNeRF</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../nerfology/methods/kplanes.html"> K-Planes</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../nerfology/methods/lerf.html"> LERF</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../nerfology/methods/livescene.html"> LiveScene</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../nerfology/methods/feature_splatting.html"> Feature-Splatting</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../nerfology/methods/mipnerf.html"> Mip-NeRF</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../nerfology/methods/nerf.html"> NeRF</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../nerfology/methods/nerfacto.html"> Nerfacto</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../nerfology/methods/nerfbusters.html"> Nerfbusters</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../nerfology/methods/nerfplayer.html"> NeRFPlayer</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../nerfology/methods/tetranerf.html"> Tetra-NeRF</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../nerfology/methods/tensorf.html"> TensoRF</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../nerfology/methods/generfacto.html"> Generfacto</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../nerfology/methods/pynerf.html"> PyNeRF</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../nerfology/methods/seathru_nerf.html"> SeaThru-NeRF</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../nerfology/methods/zipnerf.html"> Zip-NeRF</a></li>
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||
<li class="toctree-l2"><a class="reference internal" href="../nerfology/methods/bionerf.html"> BioNeRF</a></li>
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<section class="tex2jax_ignore mathjax_ignore" id="export-geometry">
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<h1>Export geometry<a class="headerlink" href="#export-geometry" title="Permalink to this heading">#</a></h1>
|
||
<p>Here we document how to export point clouds and meshes from nerfstudio. The main command you’ll be working with is <code class="docutils literal notranslate"><span class="pre">ns-export</span></code>. Our point clouds are exported as <code class="docutils literal notranslate"><span class="pre">.ply</span></code> files and the textured meshes are exported as <code class="docutils literal notranslate"><span class="pre">.obj</span></code> files.</p>
|
||
<section id="exporting-a-mesh">
|
||
<h2>Exporting a mesh<a class="headerlink" href="#exporting-a-mesh" title="Permalink to this heading">#</a></h2>
|
||
<section id="tsdf-fusion">
|
||
<h3>1. TSDF Fusion<a class="headerlink" href="#tsdf-fusion" title="Permalink to this heading">#</a></h3>
|
||
<p>TSDF (truncated signed distance function) Fusion is a meshing algorithm that uses depth maps to extract a surface as a mesh. This method works for all models.</p>
|
||
<div class="highlight-python notranslate"><div class="highlight"><pre><span></span><span class="n">ns</span><span class="o">-</span><span class="n">export</span> <span class="n">tsdf</span> <span class="o">--</span><span class="n">load</span><span class="o">-</span><span class="n">config</span> <span class="n">CONFIG</span><span class="o">.</span><span class="n">yml</span> <span class="o">--</span><span class="n">output</span><span class="o">-</span><span class="nb">dir</span> <span class="n">OUTPUT_DIR</span>
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</pre></div>
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</div>
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</section>
|
||
<section id="poisson-surface-reconstruction">
|
||
<h3>2. Poisson surface reconstruction<a class="headerlink" href="#poisson-surface-reconstruction" title="Permalink to this heading">#</a></h3>
|
||
<p>Poisson surface reconstruction gives the highest quality meshes. See the steps below to use Poisson surface reconstruction in our repo.</p>
|
||
<blockquote>
|
||
<div><p><strong>Note:</strong>
|
||
This will only work with a Model that computes or predicts normals, e.g., nerfacto.</p>
|
||
</div></blockquote>
|
||
<ol class="arabic simple">
|
||
<li><p>Train nerfacto with network settings that predict normals.</p></li>
|
||
</ol>
|
||
<div class="highlight-bash notranslate"><div class="highlight"><pre><span></span>ns-train<span class="w"> </span>nerfacto<span class="w"> </span>--pipeline.model.predict-normals<span class="w"> </span>True
|
||
</pre></div>
|
||
</div>
|
||
<ol class="arabic simple" start="2">
|
||
<li><p>Export a mesh with the Poisson meshing algorithm.</p></li>
|
||
</ol>
|
||
<div class="highlight-bash notranslate"><div class="highlight"><pre><span></span>ns-export<span class="w"> </span>poisson<span class="w"> </span>--load-config<span class="w"> </span>CONFIG.yml<span class="w"> </span>--output-dir<span class="w"> </span>OUTPUT_DIR
|
||
</pre></div>
|
||
</div>
|
||
</section>
|
||
</section>
|
||
<section id="exporting-a-point-cloud">
|
||
<h2>Exporting a point cloud<a class="headerlink" href="#exporting-a-point-cloud" title="Permalink to this heading">#</a></h2>
|
||
<div class="highlight-bash notranslate"><div class="highlight"><pre><span></span>ns-export<span class="w"> </span>pointcloud<span class="w"> </span>--help
|
||
</pre></div>
|
||
</div>
|
||
</section>
|
||
<section id="other-exporting-methods">
|
||
<h2>Other exporting methods<a class="headerlink" href="#other-exporting-methods" title="Permalink to this heading">#</a></h2>
|
||
<p>Run the following command to see other export methods that may exist.</p>
|
||
<div class="highlight-python notranslate"><div class="highlight"><pre><span></span><span class="n">ns</span><span class="o">-</span><span class="n">export</span> <span class="o">--</span><span class="n">help</span>
|
||
</pre></div>
|
||
</div>
|
||
</section>
|
||
<section id="texturing-an-existing-mesh-with-nerf">
|
||
<h2>Texturing an existing mesh with NeRF<a class="headerlink" href="#texturing-an-existing-mesh-with-nerf" title="Permalink to this heading">#</a></h2>
|
||
<p>Say you want to simplify and/or smooth a mesh offline, and then you want to texture it with NeRF. You can do that with the following command. It will work for any mesh filetypes that <a class="reference external" href="https://pymeshlab.readthedocs.io/en/latest/">PyMeshLab</a> can support, for example a <code class="docutils literal notranslate"><span class="pre">.ply</span></code>.</p>
|
||
<div class="highlight-python notranslate"><div class="highlight"><pre><span></span><span class="n">python</span> <span class="n">nerfstudio</span><span class="o">/</span><span class="n">scripts</span><span class="o">/</span><span class="n">texture</span><span class="o">.</span><span class="n">py</span> <span class="o">--</span><span class="n">load</span><span class="o">-</span><span class="n">config</span> <span class="n">CONFIG</span><span class="o">.</span><span class="n">yml</span> <span class="o">--</span><span class="nb">input</span><span class="o">-</span><span class="n">mesh</span><span class="o">-</span><span class="n">filename</span> <span class="n">FILENAME</span> <span class="o">--</span><span class="n">output</span><span class="o">-</span><span class="nb">dir</span> <span class="n">OUTPUT_DIR</span>
|
||
</pre></div>
|
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</div>
|
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</section>
|
||
<section id="dependencies">
|
||
<h2>Dependencies<a class="headerlink" href="#dependencies" title="Permalink to this heading">#</a></h2>
|
||
<p>Our dependencies are shipped with the pip package in the pyproject.toml file. These are the following:</p>
|
||
<ul class="simple">
|
||
<li><p><a class="reference external" href="https://github.com/mworchel/xatlas-python">xatlas-python</a> for unwrapping meshes to a UV map</p></li>
|
||
<li><p><a class="reference external" href="https://pymeshlab.readthedocs.io/en/latest/">pymeshlab</a> for reducing the number of faces in a mesh</p></li>
|
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<li><a class="reference internal" href="#">Export geometry</a><ul>
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<li><a class="reference internal" href="#exporting-a-mesh">Exporting a mesh</a><ul>
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<li><a class="reference internal" href="#tsdf-fusion">1. TSDF Fusion</a></li>
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<li><a class="reference internal" href="#poisson-surface-reconstruction">2. Poisson surface reconstruction</a></li>
|
||
</ul>
|
||
</li>
|
||
<li><a class="reference internal" href="#exporting-a-point-cloud">Exporting a point cloud</a></li>
|
||
<li><a class="reference internal" href="#other-exporting-methods">Other exporting methods</a></li>
|
||
<li><a class="reference internal" href="#texturing-an-existing-mesh-with-nerf">Texturing an existing mesh with NeRF</a></li>
|
||
<li><a class="reference internal" href="#dependencies">Dependencies</a></li>
|
||
</ul>
|
||
</li>
|
||
</ul>
|
||
|
||
</div>
|
||
</div>
|
||
</div>
|
||
|
||
|
||
</aside>
|
||
</div>
|
||
</div></body>
|
||
|
||
</html> |