v2.0.0

• Blur radius adjusted so that areas where the mask is fully opaque will match SwiftUI’s built-in blur(radius:) effect. If you were using Variablur 1.x, you’ll need to divide your radius by 2 to get the same behavior in 2.0.
• The standard deviation of the gaussian function used within the shader was adjusted to fit more of the bell curve within the sampling area, making the blur smoother.
• A new normalizeEdges parameter lets you choose whether the edges of the view’s frame will be blurred (normalizeEdges: true, same as the old behavior) or not (normalizeEdges: false). If the view you apply the effect to is opaque, normalizing the edges will prevent any of the background behind it from showing through. This is similar to setting opaque: true on SwiftUI’s built in blur effect.

v1.1.0

• Improve documentation.
• Use UV coordinates for sampling the mask image; the mask no longer has to be the same size as the view the effect is applied to.
• Add a version of the modifier that takes an Image directly.
• Note: the prioritizeVerticalPass parameter has been renamed to verticalPassFirst.

This version of the code is now included in the project that inspired it, Paul Hudson’s Inferno shader pack.

v1.0.0

Initial release