Center X
Sets the Center X position.
Spiral and whirl distortion
Twists pixels around a chosen center to create a whirlpool, spiral, portal or localized rotational distortion.
Vortex is a focused distortion tool for circular twisting effects with controls for center, radius and twist strength.
Overview
Pixels inside the effect radius rotate progressively around Center. The amount of rotation typically falls off toward the outside of the affected region.
Size defines how much of the frame participates. Angle/Power control how aggressively the image is twisted.
Because the effect is spatially localized, it is useful for transitions and effects that should disturb only one part of the image.
Picture stirring the image around one point with a spoon: pixels closest to the center receive the strongest rotational deformation.
Flow anatomy
The port structure shows how this node fits into a Fusion graph.
Source image for the operation.
Optional mask that limits where the node affects the image.
The processed result from this node.
Inspector
Start with these controls before reaching for more complicated workarounds.
Sets the Center X position.
Sets the Center Y position.
Sets center for Vortex.
Controls the radius of influence.
Larger values involve more of the frame.
Controls the amount of angular twist.
Animate through zero for a clean appear/disappear transition.
Changes the radial falloff/strength profile.
Use it to concentrate the twist near the center or spread it outward.
Provides keyframe controls for animating the related parameter.
Limits the distortion to a custom region.
Useful when the built-in circular falloff is not enough.
Practical setup
Connect the source needed by Vortex.
Place Center on the intended focal point.
Set Size to contain the effect.
Increase Angle gradually.
Adjust Power and mask the result if needed.
Examples
Animate the twist around a bright circular graphic.
Twist a title in and return Angle to zero.
Troubleshooting
Production notes
Related nodes