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<h1>Source code for dna_viewer.builder.mesh</h1><div class="highlight"><pre>
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<span></span><span class="kn">import</span> <span class="nn">logging</span>
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<span class="kn">from</span> <span class="nn">typing</span> <span class="kn">import</span> <span class="n">List</span>
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<span class="kn">from</span> <span class="nn">..builder.maya.mesh</span> <span class="kn">import</span> <span class="n">MayaMesh</span>
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<span class="kn">from</span> <span class="nn">..dnalib.dnalib</span> <span class="kn">import</span> <span class="n">DNA</span>
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<span class="kn">from</span> <span class="nn">.config</span> <span class="kn">import</span> <span class="n">Config</span>
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<div class="viewcode-block" id="Mesh"><a class="viewcode-back" href="../../../dna_viewer.builder.html#dna_viewer.builder.mesh.Mesh">[docs]</a><span class="k">class</span> <span class="nc">Mesh</span><span class="p">:</span>
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<span class="sd">"""</span>
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<span class="sd"> A builder class used for adding joints to the scene</span>
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<span class="sd"> Attributes</span>
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<span class="sd"> ----------</span>
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<span class="sd"> @type dna: DNA</span>
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<span class="sd"> @param dna: The location of the DNA file</span>
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<span class="sd"> @type mesh_index: int</span>
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<span class="sd"> @param mesh_index: The mesh index we are working with</span>
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<span class="sd"> @type joint_ids: List[int]</span>
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<span class="sd"> @param joint_ids: The joint indices used for adding skin</span>
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<span class="sd"> @type joint_names: List[str]</span>
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<span class="sd"> @param joint_names: The joint names used for adding skin</span>
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<span class="sd"> @type config: Config</span>
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<span class="sd"> @param config: The build options that will be applied when creating the mesh</span>
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<span class="sd"> @type mesh: MayaMesh</span>
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<span class="sd"> @param mesh: The builder class object for creating the meshes</span>
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<span class="sd"> @type dna: DNA</span>
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<span class="sd"> @param dna: The DNA object that was loaded in</span>
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<span class="sd"> """</span>
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<span class="k">def</span> <span class="fm">__init__</span><span class="p">(</span>
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<span class="bp">self</span><span class="p">,</span>
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<span class="n">config</span><span class="p">:</span> <span class="n">Config</span><span class="p">,</span>
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<span class="n">dna</span><span class="p">:</span> <span class="n">DNA</span><span class="p">,</span>
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<span class="n">mesh_index</span><span class="p">:</span> <span class="nb">int</span><span class="p">,</span>
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<span class="p">)</span> <span class="o">-></span> <span class="kc">None</span><span class="p">:</span>
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<span class="bp">self</span><span class="o">.</span><span class="n">mesh_index</span><span class="p">:</span> <span class="nb">int</span> <span class="o">=</span> <span class="n">mesh_index</span>
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<span class="bp">self</span><span class="o">.</span><span class="n">joint_ids</span><span class="p">:</span> <span class="n">List</span><span class="p">[</span><span class="nb">int</span><span class="p">]</span> <span class="o">=</span> <span class="p">[]</span>
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<span class="bp">self</span><span class="o">.</span><span class="n">joint_names</span><span class="p">:</span> <span class="n">List</span><span class="p">[</span><span class="nb">str</span><span class="p">]</span> <span class="o">=</span> <span class="p">[]</span>
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<span class="bp">self</span><span class="o">.</span><span class="n">config</span> <span class="o">=</span> <span class="n">config</span>
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<span class="bp">self</span><span class="o">.</span><span class="n">dna</span> <span class="o">=</span> <span class="n">dna</span>
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<span class="bp">self</span><span class="o">.</span><span class="n">mesh</span> <span class="o">=</span> <span class="n">MayaMesh</span><span class="p">(</span>
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<span class="bp">self</span><span class="o">.</span><span class="n">mesh_index</span><span class="p">,</span>
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<span class="bp">self</span><span class="o">.</span><span class="n">dna</span><span class="p">,</span>
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<span class="n">blend_shape_group_prefix</span><span class="o">=</span><span class="bp">self</span><span class="o">.</span><span class="n">config</span><span class="o">.</span><span class="n">blend_shape_group_prefix</span><span class="p">,</span>
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<span class="n">blend_shape_name_postfix</span><span class="o">=</span><span class="bp">self</span><span class="o">.</span><span class="n">config</span><span class="o">.</span><span class="n">blend_shape_name_postfix</span><span class="p">,</span>
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<span class="n">skin_cluster_suffix</span><span class="o">=</span><span class="bp">self</span><span class="o">.</span><span class="n">config</span><span class="o">.</span><span class="n">skin_cluster_suffix</span><span class="p">,</span>
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<span class="p">)</span>
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<div class="viewcode-block" id="Mesh.build"><a class="viewcode-back" href="../../../dna_viewer.builder.html#dna_viewer.builder.mesh.Mesh.build">[docs]</a> <span class="k">def</span> <span class="nf">build</span><span class="p">(</span><span class="bp">self</span><span class="p">)</span> <span class="o">-></span> <span class="kc">None</span><span class="p">:</span>
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<span class="sd">"""Starts the build process, creates the neutral mesh, then adds normals, blends shapes and skin if needed"""</span>
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<span class="bp">self</span><span class="o">.</span><span class="n">create_neutral_mesh</span><span class="p">()</span>
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<span class="bp">self</span><span class="o">.</span><span class="n">add_blend_shapes</span><span class="p">()</span>
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<span class="bp">self</span><span class="o">.</span><span class="n">add_skin_cluster</span><span class="p">()</span></div>
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<div class="viewcode-block" id="Mesh.create_neutral_mesh"><a class="viewcode-back" href="../../../dna_viewer.builder.html#dna_viewer.builder.mesh.Mesh.create_neutral_mesh">[docs]</a> <span class="k">def</span> <span class="nf">create_neutral_mesh</span><span class="p">(</span><span class="bp">self</span><span class="p">)</span> <span class="o">-></span> <span class="kc">None</span><span class="p">:</span>
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<span class="sd">"""Creates the neutral mesh"""</span>
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<span class="bp">self</span><span class="o">.</span><span class="n">mesh</span><span class="o">.</span><span class="n">create_neutral_mesh</span><span class="p">()</span></div>
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<div class="viewcode-block" id="Mesh.add_blend_shapes"><a class="viewcode-back" href="../../../dna_viewer.builder.html#dna_viewer.builder.mesh.Mesh.add_blend_shapes">[docs]</a> <span class="k">def</span> <span class="nf">add_blend_shapes</span><span class="p">(</span><span class="bp">self</span><span class="p">)</span> <span class="o">-></span> <span class="kc">None</span><span class="p">:</span>
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<span class="sd">"""Reads in the blend shapes, then adds them to the mesh if it is set in the build options"""</span>
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<span class="k">if</span> <span class="bp">self</span><span class="o">.</span><span class="n">config</span><span class="o">.</span><span class="n">add_blend_shapes</span><span class="p">:</span>
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<span class="n">logging</span><span class="o">.</span><span class="n">info</span><span class="p">(</span><span class="s2">"adding blend shapes..."</span><span class="p">)</span>
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<span class="bp">self</span><span class="o">.</span><span class="n">mesh</span><span class="o">.</span><span class="n">add_blend_shapes</span><span class="p">(</span>
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<span class="bp">self</span><span class="o">.</span><span class="n">config</span><span class="o">.</span><span class="n">add_mesh_name_to_blend_shape_channel_name</span>
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<span class="p">)</span></div>
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<div class="viewcode-block" id="Mesh.add_skin_cluster"><a class="viewcode-back" href="../../../dna_viewer.builder.html#dna_viewer.builder.mesh.Mesh.add_skin_cluster">[docs]</a> <span class="k">def</span> <span class="nf">add_skin_cluster</span><span class="p">(</span><span class="bp">self</span><span class="p">)</span> <span class="o">-></span> <span class="kc">None</span><span class="p">:</span>
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<span class="sd">"""Adds skin cluster to the mesh if it is set in the build options"""</span>
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<span class="k">if</span> <span class="bp">self</span><span class="o">.</span><span class="n">config</span><span class="o">.</span><span class="n">add_skin_cluster</span> <span class="ow">and</span> <span class="bp">self</span><span class="o">.</span><span class="n">config</span><span class="o">.</span><span class="n">add_joints</span><span class="p">:</span>
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<span class="bp">self</span><span class="o">.</span><span class="n">prepare_joints</span><span class="p">()</span>
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<span class="k">if</span> <span class="bp">self</span><span class="o">.</span><span class="n">joint_names</span><span class="p">:</span>
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<span class="bp">self</span><span class="o">.</span><span class="n">mesh</span><span class="o">.</span><span class="n">add_skin_cluster</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">joint_names</span><span class="p">,</span> <span class="bp">self</span><span class="o">.</span><span class="n">joint_ids</span><span class="p">)</span></div>
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<div class="viewcode-block" id="Mesh.prepare_joints"><a class="viewcode-back" href="../../../dna_viewer.builder.html#dna_viewer.builder.mesh.Mesh.prepare_joints">[docs]</a> <span class="k">def</span> <span class="nf">prepare_joints</span><span class="p">(</span><span class="bp">self</span><span class="p">)</span> <span class="o">-></span> <span class="kc">None</span><span class="p">:</span>
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<span class="sd">"""</span>
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<span class="sd"> Gets the joint indices and names needed for the given mesh.</span>
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<span class="sd"> """</span>
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<span class="bp">self</span><span class="o">.</span><span class="n">prepare_joint_ids</span><span class="p">()</span>
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<span class="n">joints</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">dna</span><span class="o">.</span><span class="n">read_all_neutral_joints</span><span class="p">()</span>
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<span class="bp">self</span><span class="o">.</span><span class="n">joint_names</span> <span class="o">=</span> <span class="p">[]</span>
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<span class="k">for</span> <span class="n">joint_id</span> <span class="ow">in</span> <span class="bp">self</span><span class="o">.</span><span class="n">joint_ids</span><span class="p">:</span>
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<span class="bp">self</span><span class="o">.</span><span class="n">joint_names</span><span class="o">.</span><span class="n">append</span><span class="p">(</span><span class="n">joints</span><span class="p">[</span><span class="n">joint_id</span><span class="p">]</span><span class="o">.</span><span class="n">name</span><span class="p">)</span></div>
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<div class="viewcode-block" id="Mesh.prepare_joint_ids"><a class="viewcode-back" href="../../../dna_viewer.builder.html#dna_viewer.builder.mesh.Mesh.prepare_joint_ids">[docs]</a> <span class="k">def</span> <span class="nf">prepare_joint_ids</span><span class="p">(</span><span class="bp">self</span><span class="p">)</span> <span class="o">-></span> <span class="kc">None</span><span class="p">:</span>
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<span class="n">joints_temp</span><span class="p">:</span> <span class="n">List</span><span class="p">[</span><span class="nb">int</span><span class="p">]</span> <span class="o">=</span> <span class="p">[]</span>
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<span class="n">joint_indices</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">dna</span><span class="o">.</span><span class="n">get_all_skin_weights_joint_indices_for_mesh</span><span class="p">(</span>
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<span class="bp">self</span><span class="o">.</span><span class="n">mesh_index</span>
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<span class="p">)</span>
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<span class="bp">self</span><span class="o">.</span><span class="n">joint_ids</span> <span class="o">=</span> <span class="p">[]</span>
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<span class="k">if</span> <span class="nb">any</span><span class="p">(</span><span class="n">joint_indices</span><span class="p">):</span>
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<span class="k">for</span> <span class="n">row</span> <span class="ow">in</span> <span class="n">joint_indices</span><span class="p">:</span>
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<span class="k">for</span> <span class="n">column</span> <span class="ow">in</span> <span class="n">row</span><span class="p">:</span>
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<span class="n">joints_temp</span><span class="o">.</span><span class="n">append</span><span class="p">(</span><span class="n">column</span><span class="p">)</span>
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<span class="bp">self</span><span class="o">.</span><span class="n">joint_ids</span> <span class="o">=</span> <span class="nb">list</span><span class="p">(</span><span class="nb">set</span><span class="p">(</span><span class="n">joints_temp</span><span class="p">))</span>
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<span class="bp">self</span><span class="o">.</span><span class="n">joint_ids</span><span class="o">.</span><span class="n">sort</span><span class="p">()</span>
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<span class="k">else</span><span class="p">:</span>
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<span class="n">lod</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">dna</span><span class="o">.</span><span class="n">get_lowest_lod_containing_meshes</span><span class="p">([</span><span class="bp">self</span><span class="o">.</span><span class="n">mesh_index</span><span class="p">])</span>
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<span class="k">if</span> <span class="n">lod</span><span class="p">:</span>
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<span class="bp">self</span><span class="o">.</span><span class="n">joint_ids</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">dna</span><span class="o">.</span><span class="n">get_joint_indices_for_lod</span><span class="p">(</span><span class="n">lod</span><span class="p">)</span></div></div>
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</pre></div>
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