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Ambient CSS replaces hand-tuned shadow classes with physics-based lighting
Ambient CSS is a physics-based lighting system that derives shadows, highlights, and gradients from a defined light source, eliminating hand-tuned shadow classes.
For front-end engineers, this means consistent lighting across UI components without manual tuning. Changing the light vector on a container updates all child elements deterministically, making it easier to maintain visual coherence. The system is calibrated against raytraced 3D models, so the results are physically grounded.
Written by elseif from the cluster below · every claim links back to a sourceThe three things worth knowing
Ambient CSS uses a two-light system and generates a five-layer composite box-shadow for each element.
Light direction, intensity, hue, and elevation are controlled via CSS custom properties on any ancestor.
The project includes a pure CSS package, React components, and a Blender raytracing calibration tool.
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