Visualize vector field — Grid / Edges
Controls how the operation treats image or region edges.
← Fusion node reference
VectorVisualization
Visualize motion-vector fields
Converts hidden vector/UV data into visible grids or line segments so direction, magnitude and field quality can be inspected.
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.
VectorVisualization
DaVinci Resolve · Fusion
VectorVisualization is a diagnostic node rather than a finishing effect. It exposes vector structure before nodes such as VectorMotionBlur, VectorDistortion or VectorWarp use that data.
Overview
What VectorVisualization does
VectorVisualization is a diagnostic node rather than a finishing effect. It exposes vector structure before nodes such as VectorMotionBlur, VectorDistortion or VectorWarp use that data.
Mental model
Think of it as turning invisible motion arrows into an engineering overlay you can actually read.
Common uses
Debug motion vectors
Check vector direction
Find noisy areas
Verify vector scale
Inspect UV warps
Compare vector analysis methods
Flow anatomy
Inputs & outputs
The port structure shows how this node fits into a Fusion graph.
Image / Vector Data
Source image for the operation.
VectorVisualization
Fusion node
Output
The processed result from this node.
Inspector
Important parameters
Start with these controls before reaching for more complicated workarounds.
Density
Controls how many diagnostic lines are drawn.
Length multiplier
Scales line length to make vector magnitude easier to read.
Line Color — Solid / Image
Chooses whether vector lines use a fixed solid color or sample color from the image.
Color
Sets the color.
Red
Adjusts the red channel.
Use channel-specific controls when the operation should not affect all components equally.
Green
Adjusts the green channel.
Use channel-specific controls when the operation should not affect all components equally.
Blue
Adjusts the blue channel.
Use channel-specific controls when the operation should not affect all components equally.
Alpha
Adjusts the alpha channel.
Use channel-specific controls when the operation should not affect all components equally.
Practical setup
A reliable workflow
- 1
Generate or load vector data.
- 2
Insert VectorVisualization before the effect that consumes it.
- 3
Use moderate density.
- 4
Increase Length Multiplier until direction is readable.
- 5
Look for random spikes, discontinuities and inverted motion.
Typical node chain
Vector field→
VectorVisualization→
Visible diagnostics
Examples
Where this node fits in real work
Optical-flow audit
Inspect generated vectors before applying blur.
MediaInOpticalFlowVectorVisualization
Rendered vector pass audit
Check a CG vector pass before distortion.
Vector PassVectorVisualizationVectorDistortion
Troubleshooting
Common mistakes
Leaving visualization in the final output
Using extremely dense lines that hide the pattern
Judging vector quality only by the final blur
Ignoring sudden direction changes at object boundaries
Production notes
Practical tips
Use this node early whenever vector behavior looks suspicious.
Compare neighboring frames to distinguish real discontinuities from noise.
Keep screenshots of good vector fields when debugging a pipeline.
Related nodes