The gaussian blur filter is a powerful filter tool in Affinity Photo and can be found in the blur category in the filters menu.
You can use the gaussian blur filter effect in Affinity Photo with all kinds of images as well as using them to blur other presets
Filters menu in Affinity Photo (to find the gaussian blur)
Blur category
Gaussian blur
Set radius
Click apply
The gaussian blur is a powerful destructive filter that can be used on layers as well as with selections and also channels and more in Affinity Photo. The tool can be used repeatedly with any image.
The gaussian blur can be used in all the color channels or a single one so you can modify the blur effect for the red to the green etc.
You can also use the gaussian blur filter in an Affinity Photo selection, you can apply the effect multiple times inside that selection
You can fade the gaussian blur filter via the layer menu and fade command
You can apply the gaussian blur effect to shapes as well as text to create all kinds of amazing designs
1. star and star field patterns for Adobe Photoshop and Affinity Photo etc