Mac-Duo

sumimakito

1.2k stars87 forksSwiftApache-2.0

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A macOS menu bar app that makes a MacBook screen tilt, blur, and fade as its lid closes.

It recreates the iPhone Duo-style closing effect from your MacBook's actual lid movement. Close the built-in display and it overlays a transformed, blurred, dimmed copy of the live screen. It works only on macOS 14+ MacBooks with a compatible built-in lid angle sensor and Screen Recording permission.

For MacBook owners with compatible lid sensors wanting an iPhone Duo-style effect

Desktop appNeeds macOS 14+ MacBook with lid sensor

Use cases

Add a Duo-style lid effect to a MacBook display
Keep screen content updating while the lid closes
Tune the closing perspective for your viewing position
Monitor the lid angle from the menu bar
Use controls in Chinese or English

Key features

GPU closing animation: Metal perspective, blur, and dimming as the lid closes
Live screen picture: ScreenCaptureKit captures built-in display content in real time
Perspective controls: Viewing distance and recession settings shape the projected screen
Built-in display only: External displays and their sensors are ignored
Click-through overlay: Clicks pass through to apps underneath
Menu bar angle readout: Shows the current lid angle in degrees

Under the hood

4 parts

Mac Duo reads the built-in lid angle, captures the built-in display, and projects that image into a borderless click-through overlay. Its Metal renderer applies perspective, height-based blur, and dimming while the controller smooths sensor readings at display refresh rate.

Sources/MacDuo/LidController.swift; Sources/MacDuo/DepthOverlay.swift; Sources/MacDuo/DepthRenderer.swift; Sources/MacDuo/DepthShaders.swift; Sources/LidAngleKit/LidAngleSensor.swift

LidController
Coordinates lid sensing, effect triggering, capture, animation, and overlay lifecycle.
Sources/MacDuo/LidController.swift
DepthOverlay and renderer
Hosts the full-screen overlay and sends live frames to Metal rendering.
Sources/MacDuo/DepthOverlay.swift
DepthRenderer and shader
Renders the captured screen with projected geometry, Gaussian blur, and dimming.
Sources/MacDuo/DepthRenderer.swift
LidAngleKit
Reads compatible built-in lid angle sensors through IOKit HID.
Sources/LidAngleKit/LidAngleSensor.swift

Built with

Swift 6.0AppKitSwiftUIMetalMetalPerformanceShadersScreenCaptureKitIOKit HIDServiceManagement

Generated 3 days ago

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