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DemoPrerender Op

Namespace: Ops.TimeLine

Op author: pandur

Prerenderer based on timeline progress

This op records "heavy events", 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 "heavy events" already happen in the loading/prerendering state and can be visualized with a progress bar

how to record "heavy events"

  1. if the patch/timing changed a log click "clear" to remove all previous recorded events
  2. select prerender op, activate "record events" and save the patch
  3. reload the patch and wait for the demo play and finish and save the patch
  4. "Num Events" should show the number of detected events.
  5. 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...
  6. uncheck "record events" and save patch again


Render (Trigger)
Manual Timestamps (Array)
Record Events (boolean /Number)
Reset (Trigger)
Clear (Trigger)
ReRender on Resize (boolean /Number)


Next (Trigger)
Prerendered Frame (Trigger)
Progress (Number)
Num Events (Number)

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fast challenge music and midi

Patches using DemoPrerender

  • Examples
  • Public
  • My Patches


created op
2021-03-20 - pandur
Ops.User.pandur.demoprerender renamed to Ops.Timeline.DemoPrerender
2021-03-21 - pandur
Ops.Timeline.DemoPrerender renamed to Ops.TimeLine.DemoPrerender
2022-06-07 - pandur