in SAM2-Demo/Ripple/RippleModifier.swift [25:48]
func body(content: Content) -> some View {
let shader = ShaderLibrary.Ripple(
.float2(origin),
.float(elapsedTime),
// Parameters
.float(amplitude),
.float(frequency),
.float(decay),
.float(speed)
)
let maxSampleOffset = maxSampleOffset
let elapsedTime = elapsedTime
let duration = duration
content.visualEffect { view, _ in
view.layerEffect(
shader,
maxSampleOffset: maxSampleOffset,
isEnabled: 0 < elapsedTime && elapsedTime < duration
)
}
}