What problem does it solve?
Glass effects like frosted glass, backdrop blur, and glassmorphism are among the most GPU-intensive operations in Flutter, often causing scroll jank, high CPU/GPU usage, visual artifacts, and poor performance on low-end devices when implemented without optimization. This skill solves these issues by providing proven, engine-specific optimization strategies that maintain visual fidelity while minimizing rendering cost.
Core Features & Use Cases
- Comprehensive Glass Effect Optimization: Covers BackdropFilter, ImageFiltered, custom GLSL shaders, and all common glass UI patterns including frosted cards, dialogs, app bars, and liquid glass effects.
- Performance Tuning for All Scenarios: Includes batching strategies for multiple glass panels with BackdropGroup, scrollable list optimizations, sigma value tuning, and Impeller engine-specific improvements.
- Cross-Device & Accessibility Support: Provides low-end device fallbacks, accessibility compliance for reduced transparency preferences, and profiling guidance to meet 60fps/120fps frame budgets.
Use Case: For a Flutter chat app with 4 glass notification overlays and a scrollable list of glass cards, use this skill to implement BackdropGroup batching and proper clipping to reduce raster thread time from 22ms to 7ms, eliminating scroll jank on mid-range devices.
Quick Start
Use the flutter-glass-effect-performance skill to optimize the glass effect implementation in your Flutter app's main dashboard screen to reduce GPU usage and eliminate scroll jank.
