ShaderRegistry class

Singleton cache of compiled ui.FragmentProgram instances.

Call preload once at app startup (before runApp) to compile all shaders. This prevents jank on the first transition because GPU shader compilation is deferred until the program is first used.

void main() async {
  WidgetsFlutterBinding.ensureInitialized();
  await ShaderRegistry.instance.preload();
  runApp(const MyApp());
}