FUSION · NODE REFERENCE

GaussianBlur

Smooth Gaussian image blur

Applies a smooth Gaussian blur with separate horizontal/vertical channel adjustments, border handling and mask support.

Blur & FocusBeginner

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GaussianBlur

Overview

What GaussianBlur does

Applies a smooth Gaussian blur with separate horizontal/vertical channel adjustments, border handling and mask support.

GaussianBlur weights nearby pixels more strongly than distant ones, producing a smooth falloff that suits soft masks, text backplates, glow branches, shadows and background plates better than a hard box filter.

Split Horizontal and Vertical plus the channel controls let RGB and alpha be softened differently. At large radii, choose Border Type deliberately so the filter does not pull black into the frame edges.

When to use it

Soften backgrounds
Blur masks and mattes
Reduce high-frequency detail
Prepare images for glow or displacement
Create gentle directional softness

GaussianBlur in context

Screenshots referenced by this article. Open an image to inspect it at full size.

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**GaussianBlur Controls: Strength, Split Horizontal and Vertical, настройки каналов и Border Type**
Example for GaussianBlur.
Original image

**GaussianBlur Border Type dropdown: Black, Replicate, Reflect, Wrap-Around**
Example for GaussianBlur.
Original image