progressive blur
Asked on 03/03/2025
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The concept of "progressive blur" is discussed in the session titled "Create custom visual effects with SwiftUI" at WWDC 2024. In this session, a technique is described where the blur radius of a line is decreased to zero to give the impression that the line manifests from a diffuse state. This is part of a custom visual effect where the initial blur radius is based on the height of the line, and the transition is animated using a spring effect on the y-axis. You can find more details in the Create custom visual effects with SwiftUI session at the timestamp 14:57.
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