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</div><div class="twikiRevInfo"><span class="twikiGrayText"><span class="twikiToolbarElem">Cinelerra.BatchRendering</span><span class="twikiToolbarElem">r1.2 - 19 Aug 2004 - 14:12 - <a class="twikiLink" href="../Main/AlexFerrer">AlexFerrer</a></span><span class="twikiToolbarElem"><a href="#TopicEnd">topic&nbsp;end</a></span></span></div></div>
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<h3><a name="Batch_Rendering"> </a><a name="_Batch_Rendering_"> </a> <a class="twikiLink" href="BatchRendering">Batch Rendering</a> </h3>
<p />
If you want to render many projects to media files without having to repeatedly attend to the Render dialog, batch rendering is the function to use. In this function, you specify many EDL files to render and the unique output files for each. Then Cinelerra loads each EDL file and renders it automatically, without any user intervention. Each EDL file and its output to be rendered is called a batch. This allows a huge amount of media to be processed and greatly increases the value of an expensive computer.
<p />
The first thing to do when preparing to do batch rendering is define projects to be rendered. The batch renderer requires a separate EDL file for every batch to be rendered. Set up a project and define the region to be rendered either by highlighting it, setting in/out points around it, or positioning the insertion point before it. Then save the project as an EDL. Define as many projects as needed this way. The batch renderer takes the active region from the EDL file for rendering.
<p />
With all the EDL files prepared with active regions, go to <a class="twikiLink" href="FileMenu">FileMenu</a> <strong>-&gt;batch render</strong> . This brings up the batch rendering dialog. The interface for batch rendering is a bit more complex than for single file rendering.
<p />
A list of batches must be defined before starting a batch rendering operation. The table of batches appears on the bottom of the batch render dialog and is called batches to render. Above this are the configuration parameters for a single batch.
<p />
Set the output path, file format, Audio, Video, and Create new file at each label parameters as if it was a single file. These parameters apply to only one batch. In addition to the standard rendering parameters, you must select the source EDL to use in the batch. Do this by setting the EDL path.
<p />
If the batches to render list is empty or nothing is highlighted, click New to create a new batch. The new batch will contain all the parameters you just set.
<p />
Repeatedly press the New button to create more batches with the same parameters. Highlight any batch and edit the configuration on the top of the batch render window. The highlighted batch is always synchronized to the information displayed.
<p />
Click and drag batches to change the order in which they're rendered. Hit delete to permanently remove the highlighted batch.
<p />
In the list box is a column which enables or disables the batch. This way batches can be skipped without being deleted. Click on the Enabled column in the list box to enable or disable a batch. If it is checked, the batch is rendered. If it is blank, the batch is skipped.
<p />
The other columns in the batch list are informative.
<p />
<ul>
<li> Output The output path of the batch.
</li>
<li> EDL The source EDL of the batch.
</li>
<li> Elapsed The amount of time taken to render the batch if it is finished.
</li>
</ul>
<p />
To start rendering from the first enabled batch, hit <strong>Start</strong>.
<p />
Once rendering, the main window shows the progress of the batch. Once the batch finishes, the elapsed column in the batch list is updated and the next batch is rendered until all the enabled batches are finished. The currently rendering batch is always highlighted red.
<p />
<ul>
<li> To stop rendering before the batches are finished without closing the batch render dialog, hit <strong>Stop</strong>.
</li>
<li> To stop rendering before the batches are finished and close the batch render dialog, hit <strong>Cancel</strong>.
</li>
<li> To exit the batch render dialog whether or not anything is being rendered, hit <strong>Cancel</strong>. 
</li>
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<p />
<p />
Also see <a class="twikiLink" href="Rendering">Rendering</a>
<p />
-- <a class="twikiLink" href="../Main/AlexFerrer">AlexFerrer</a> - 19 Dec 2003 from <a class="twikiLink" href="SecretsOfCinelerra">SecretsOfCinelerra</a>
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