Iterations
Sets how many propagation passes are run.
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GrowColor
Iterative color propagation and fill
Expands nearby color values through iterative neighborhood analysis, useful for filling small gaps, extending color fields and creating organic spreading treatments.
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.
GrowColor
DaVinci Resolve · Fusion
GrowColor propagates color by repeatedly comparing neighboring pixels rather than applying a simple blur. It can fill small holes, extend paint and build controlled organic color growth.
Overview
What GrowColor does
Iterations controls how many propagation passes are performed. More iterations extend the effect farther but also cost more processing.
Resolution changes the working resolution used for iteration, providing a quality/performance tradeoff.
Threshold and Threshold Softness determine how similar neighboring pixels must be for color to spread, which controls whether the result stays selective or floods broadly.
Mental model
Think of GrowColor as paint that advances one neighborhood step at a time whenever nearby pixels satisfy a similarity test.
Common uses
Fill small color gaps
Extend painted regions into holes
Repair thin edge voids
Create organic color-spread effects
Build stylized texture expansion
Flow anatomy
Inputs & outputs
The port structure shows how this node fits into a Fusion graph.
Input
Source image for the operation.
Effect Mask
Optional mask that limits where the node affects the image.
GrowColor
Fusion node
Output
The processed result from this node.
Inspector
Important parameters
Start with these controls before reaching for more complicated workarounds.
Iteration Interrupt
Provides control over stopping or limiting iterative processing.
Lock X/Y
Links horizontal and vertical processing behavior.
Resolution
Sets the processing resolution used for growth.
Iteration Exponent
Shapes how iteration strength accumulates.
Threshold
Controls the similarity requirement for color propagation.
Threshold Softness
Softens the transition around the threshold.
Practical setup
A reliable workflow
- 1
Mask the target region if the growth must stay local.
- 2
Start with a low iteration count.
- 3
Set Threshold so desired colors spread without flooding unrelated areas.
- 4
Increase iterations until gaps close.
- 5
Raise processing resolution for final quality only if needed.
Typical node chain
Source Colors→
Neighborhood Test→
Iterations→
Expanded Color Field
Examples
Where this node fits in real work
Edge color repair
Extend nearby clean color into small transparent or damaged gaps.
MediaInGrowColorPatch/Repair chain
Organic color bloom
Let a limited palette spread across an abstract source.
Procedural TextureGrowColorColor Corrector
Troubleshooting
Common mistakes
Using excessive iterations and flattening local detail
Setting Threshold too permissive and flooding the frame
Rendering at full resolution while experimenting with a heavy iterative setup
Production notes
Practical tips
Tune threshold before increasing iterations.
Use a mask to protect areas that must not be recolored.
Work at reduced resolution for look development, then increase quality for delivery.
Related nodes