Mapping Type
Controls the interpolation model inside the four-corner shape.
Choose the mode that best matches the intended plane.
← Fusion node reference
Warp & PerspectiveIntermediate
CornerPositioner
Four-corner image placement
Maps an image to four independently positioned corners for screen inserts, signs and arbitrary quadrilateral placement.
CornerPositioner
DaVinci Resolve · Fusion
CornerPositioner is a straightforward four-point warp for fitting a layer into a rectangular or perspective-shaped target.
Overview
What CornerPositioner does
Each corner of the input is mapped to a new point in the output. This is ideal when the target can be described by four visible corners.
Mapping Type changes how the interior is interpolated. For simple perspective surfaces, choose the mode that preserves the visual geometry most naturally.
CornerPositioner is commonly paired with Planar Tracker data for screen replacement and sign insertion.
Mental model
Think of grabbing the four corners of a printed image and pinning them to four points in the shot.
Common uses
Screen replacement
Place artwork on a sign
Fit a graphic to a card or poster
Manual corner pin
Perspective title placement
Flow anatomy
Inputs & outputs
The port structure shows how this node fits into a Fusion graph.
Input
The graphic or image that will be corner-pinned.
CornerPositioner
Fusion node
Output
The processed result from this node.
Inspector
Important parameters
Start with these controls before reaching for more complicated workarounds.
Top Left
Places the transformed image’s top-left corner in X/Y coordinates.
Top Right
Places the transformed image’s top-right corner in X/Y coordinates.
Bottom Left
Places the transformed image’s bottom-left corner in X/Y coordinates.
Bottom Right
Places the transformed image’s bottom-right corner in X/Y coordinates.
Offset X / Offset Y
Sets the horizontal and vertical offset.
Reset Offsets
Resets the additional corner offsets to zero.
Practical setup
A reliable workflow
- 1
Connect the insert graphic.
- 2
Place all four corners on the target surface.
- 3
Choose the appropriate Mapping Type.
- 4
Check straight lines and perspective.
- 5
Mask/grade the insert and merge it into the plate.
Typical node chain
Graphic→
CornerPositioner→
Merge→
MediaOut
Examples
Where this node fits in real work
Monitor insert
Map replacement content to the four screen corners.
ReplacementCornerPositionerMerge
Tracked sign
Drive the corner pin from a planar-track workflow.
Planar TrackerGraphicCornerPositionerMerge
Troubleshooting
Common mistakes
Crossing corner points and flipping the image.
Using a four-corner warp when the surface actually bends.
Ignoring the lens distortion of the original plate.
Production notes
Practical tips
Use Planar Tracker when the surface moves through the shot.
Keep the insert at good resolution before warping it down.
Check the edge blend and reflections after the geometry is correct.
Related nodes