苹果是如何从底层上实现 liquid glass 效果的？有什么技术突破

Liquid Glass is a new digital metamaterial introduced by Apple, designed to enhance the look and feel of apps and system experiences across Apple's ecosystem. It builds on the evolution of Apple's design language, from the Aqua user interface of Mac OS X to the fluidity of iPhone X and the immersive interface of Vision OS. Liquid Glass is not just a visual effect but a dynamic layer that bends and shapes light, behaving like a lightweight liquid. It responds to touch and the dynamism of modern apps, creating a more organic and immersive experience.

The technology behind Liquid Glass involves several key breakthroughs:

1. Dynamic Adaptation: Liquid Glass automatically adapts to different contexts and environments. It changes its appearance based on the content underneath, ensuring legibility and maintaining clear separation from the content layer. This is achieved through layers that continuously adapt, allowing for dynamic range shifts and tint adjustments.

2. Optical Properties: Liquid Glass combines the optical qualities of glass with responsive fluidity. It refracts content from below, reflects light from around it, and has responsive lensing along its edges. This creates a sense of depth and vitality, making the interface feel fluid and alive.

3. Interactivity: The material is designed to be interactive, providing feedback through illumination and glow that spreads throughout the elements. This interaction is directly connected to the physical world and device input, enhancing the user experience.

4. Unified Design Language: Liquid Glass is fundamental to creating a unified design language across all Apple platforms. It seamlessly blends hardware and software, introducing a more fluid and dynamic interaction experience.

For more detailed insights into the dynamic properties and adaptivity of Liquid Glass, you can refer to the session Meet Liquid Glass (01:29).