Random Seed
Changes the deterministic random arrangement.
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Pack
Procedural element packing
Generates and packs repeated procedural elements according to a chosen image channel, shape type, size range and randomization controls.
This tool belongs to the Krokodove set integrated into DaVinci Resolve 21 and Fusion Studio 21. See the complete Krokodove node list and the comparison with native Fusion tools.
Pack
DaVinci Resolve · Fusion
Pack is a procedural graphics node for filling an active region with many generated elements such as circles, squares, diamonds or a custom shape.
Overview
What Pack does
A selected image channel can influence where packing is allowed or how the distribution behaves. Maximum Elements and size controls determine density and scale.
Random Seed and jitter controls produce deterministic variation: the same seed gives the same arrangement, which is useful for reproducible motion graphics.
Pack is best treated as a generator. Build the distribution first, then style, color, blur or composite the result with downstream nodes.
Mental model
Think of Pack as automatically fitting many tiles into an allowed region: choose the shape, size range and density, then let the node generate a repeatable packed pattern.
Common uses
Procedural dot fields
Packed geometric textures
Motion-graphics backgrounds
Channel-driven element distributions
Abstract infographics
Flow anatomy
Inputs & outputs
The port structure shows how this node fits into a Fusion graph.
Image
Optional source whose channel can guide the packing region or distribution.
Effect Mask
Optional mask that limits where the node affects the image.
External Shape / Color Input
Shape data processed or combined by this node.
Pack
Fusion node
Output
The processed result from this node.
Inspector
Important parameters
Start with these controls before reaching for more complicated workarounds.
Channel
Chooses Red, Green, Blue, Alpha or Luminance as the guide channel.
Channel: Red / Green / Blue
Chooses the source color channel that drives the Pack operation.
Channel: Alpha
Uses Alpha as the selected channel.
Channel: Luminance
Uses Luminance as the selected channel.
Shape Type
Chooses Circle, Square, Diamond or a custom Shape source.
Shape Type: Circle
Uses Circle for shape type.
Shape Type: Square
Uses Square for shape type.
Shape Type: Diamond
Uses Diamond for shape type.
Shape Type: Shape
Uses Shape for shape type.
Maximum Elements
Limits how many elements the node attempts to place.
Higher counts can significantly increase processing cost.
Size Minimum
Sets the minimum size allowed for packed elements.
Size Maximum
Sets the maximum size allowed for packed elements.
Size Multiply
Multiplies all calculated packed-element sizes while preserving their relative variation.
Size Add
Adds a fixed amount to every calculated packed-element size.
Jitter Angle
Randomizes element rotation for less uniform patterns.
Jitter Angle Step
Adds controlled random variation to this property.
Aspect
Adjusts the aspect ratio without changing the main scale control.
Shape color
Sets the shape color.
Shape Color / Red / Green / Blue / Alpha
Provides separate controls for the red, green, blue and alpha channels.
Overlap
Chooses how packed elements are combined where they overlap.
Overlap: Maximum
Sets overlap to Maximum.
Overlap: Add
Sets overlap to Add.
Overlap: Multiply
Sets overlap to Multiply.
Overlap: Screen
Sets overlap to Screen.
Range Random Seed
Defines the range over which this operation is active.
Range Type
Defines the range over which this operation is active.
Range Seeds / Range Seeds Jitter
Defines the range over which this operation is active.
Range Random One By One
Defines the range over which this operation is active.
Range Min / Range Max
Sets one boundary of the active range.
Range Overlap
Defines the range over which this operation is active.
Range Length
Defines the range over which this operation is active.
Range Curve
Defines the range over which this operation is active.
Super-Sampling
Sets supersampling quality for cleaner rendered edges.
Higher values improve quality at additional render cost.
Practical setup
A reliable workflow
- 1
Choose the guide channel or leave the distribution unconstrained.
- 2
Select a Shape Type.
- 3
Set a moderate Maximum Elements value.
- 4
Define the size range.
- 5
Change Random Seed until the arrangement fits the design, then keep it fixed.
Typical node chain
Guide / settings→
Pack→
Packed pattern
Examples
Where this node fits in real work
Packed circle texture
Generate a repeatable field of circles and color it downstream.
PackColorCorrectorMerge
Troubleshooting
Common mistakes
Starting with an excessive element count
Changing Random Seed after animation or art direction is approved
Using a guide channel with poor contrast
Trying to solve styling inside the packing logic instead of downstream
Production notes
Practical tips
Lock Random Seed once the design is approved.
Use a high-contrast guide matte for predictable channel-driven packing.
Render or precompose very dense packs before adding expensive downstream effects.
Related nodes