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Dynamic Gaussian – Radial Mask

Apply animated Gaussian blur inside or outside a circular zone using a radial gradient mask. Use to soften edges, spotlight center subjects, or animate shifting focus.

Learn more about variation controls
Outer Mask preview Dynamic Mask preview
Parameters:
Size Controls blur intensity. Values up to 4.0 increase blur with reduced precision.
Variation (Size) Apply random or time-based blur intensity. Set to 0.0 to vary only mask shape/position.
Round Mask shape toggle: on = perfect circle; off = elliptical (frame aspect ratio).
Distribution Defines where blur is concentrated. >0.5 = edges, <0.5 = center focus.
Center X / Y Sets mask origin. Animate or randomize for shifting blur target.
Variation (Center) Allows mask to drift smoothly or randomly across the frame.

If you like our free dynamic blurs, check out what our uniquely powerful Blur-Sharpen Tools can do.