Notch Notch Manual 0.9.23
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Layer Precomp

Layer Precomp

Pre-composite a separate layer as a video source.

Method #

This node pre-composites a layer so it can be rendered inside another layer. Any exposed values from inside that layer will also be carried over into the new layer.

Multiple nodes in one scene will rerender that original layer, so make sure to use as few layer precomp nodes as possible and branch out with Video Nulls.

Outputs are an image or video that can be connected to any relevant video input, most commonly an Image 2D node, or a Post FX Node.


These properties control the core behaviours of the node.

Source LayerSelect a layer to precomposite.
Render Width / HeightChange the width and height of the rendered layer. When set to 0, render width and height are set to scene resolution.
Preview In ViewportPreview the effect blended with alpha in the viewport.
Preview RGB In ViewportPreview the colour values in the viewport.
Preview Alpha In ViewportPreview the alpha values in the viewport.
Time ModeChange relative time in which the precomped layer is running.
  • Node Relative : Time will be relative to the start and end time of the node.
  • Layer Relative : Time will be relative to the start and end time of the layer.
  • Global : Time will be relative to the start and end time of the project.
  • Use Deltas (Looping) : Time will use its own time and run continuously.
Time OffsetOffset the start time of the layer.
Playback SpeedSpeed at which the layer is played at.
LoopingEnable or disable the layer from looping at the end.
Loop Start TimeOffset the start time of the layer after each loop.
Update ActiveEnable or disable the layer from re-rendering to the current scene. When disabled, a static image will be output.
Optimise Memory On IdleThis will dynamically remove memory data if the node isn’t active. This can optimise memory usage, but can cause issues loading a precomp if it is sufficiently large.
Hide Handles, Bounding Boxes and Range IndicatorsToggles the visibility of handles, bounding boxes and range indicators.


NameDescriptionTypical Input
Effect MaskMask out areas that Post-FX applied to this node won’t be applied.Video Loader
Alpha ImageUse a seperate video nodes luminance values to overwrite the alpha channel of the image.Video Loader

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