DemoPrerender Op

<p>This op records &quot;heavy events&quot;, that cause frame drops at runtime (uploading data to gpu/resizing of textures/compiling shaders). The process prerendering jumps to the timeline-time of those events and renders the state of the patch at that time, so those &quot;heavy events&quot; already happen in the loading/prerendering state and can be visualized with a progress bar</p> <h3>how to record &quot;heavy events&quot;</h3> <ol start="0"> <li>if the patch/timing changed a log click &quot;clear&quot; to remove all previous recorded events</li> <li>select prerender op, activate &quot;record events&quot; and save the patch</li> <li>reload the patch and wait for the demo play and finish and save the patch</li> <li>&quot;Num Events&quot; should show the number of detected events.</li> <li>it may be necessary to repeat step 2 a few times, until all huge spikes at scene changes in the performance op graph are gone...</li> <li>uncheck &quot;record events&quot; and save patch again</li> </ol>