[Impeller] Rendered Text Wiggles when scaling #162949
Description
Steps to reproduce
Put text under a widget that scales it such as AnimatedScale or FlexibleSpaceBar and make it scale. Launch app on Android. Happens on 3.25.0-0.0.pre - 3.29.0-0.3.pre. Doesn't happen on 3.24.5 and earlier.
Expected results
Text scales uniformly and letters don't move or scale otherwise.
Actual results
Letters independently move and scale in a distracting manner
Code sample
Code sample
import 'package:flutter/material.dart';
void main() => runApp(const MyApp());
class MyApp extends StatelessWidget {
const MyApp();
@override
Widget build(BuildContext context) {
return MaterialApp(
home: Scaffold(
body: CustomScrollView(slivers: [
SliverAppBar(
automaticallyImplyLeading: false,
collapsedHeight: 50,
toolbarHeight: 50,
expandedHeight: 500,
flexibleSpace: FlexibleSpaceBar(
title: Text("Wiggle wiggle 3.27.4"), expandedTitleScale: 5)),
SliverToBoxAdapter(
child: const Text(
"""
\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n""",
),
)
]),
),
);
}
}
Screenshots or Video
Screenshots / Video demonstration
Screen.Recording.mp4
Logs
Logs
[Paste your logs here]Flutter Doctor output
Doctor output
[✓] Flutter (Channel stable, 3.27.4, on Arch Linux 6.12.10-arch1-1, locale en_US.UTF-8)
• Flutter version 3.27.4 on channel stable at ~/Development/flutter_updated
• Upstream repository https://github.com/flutter/flutter.git
• Framework revision d8a9f9a52e (9 days ago), 2025-01-31 16:07:18 -0500
• Engine revision 82bd5b7209
• Dart version 3.6.2
• DevTools version 2.40.3
[✓] Android toolchain - develop for Android devices (Android SDK version 36.0.0-rc1)
• Android SDK at ~/Android/Sdk
• Platform android-35, build-tools 36.0.0-rc1
• Java binary at: /opt/android-studio/jbr/bin/java
• Java version OpenJDK Runtime Environment (build 21.0.4+-12422083-b607.1)
• All Android licenses accepted.
[✗] Chrome - develop for the web (Cannot find Chrome executable at google-chrome)
! Cannot find Chrome. Try setting CHROME_EXECUTABLE to a Chrome executable.
[✓] Linux toolchain - develop for Linux desktop
• clang version 19.1.7
• cmake version 3.31.5
• ninja version 1.12.1
• pkg-config version 2.3.0
[✓] Android Studio (version 2024.2)
• Android Studio at /opt/android-studio
• Flutter plugin can be installed from:
🔨 https://plugins.jetbrains.com/plugin/9212-flutter
• Dart plugin can be installed from:
🔨 https://plugins.jetbrains.com/plugin/6351-dart
• Java version OpenJDK Runtime Environment (build 21.0.4+-12422083-b607.1)
[✓] Connected device (2 available)
• SM N985F (mobile) • 192.168.1.80:45797 • android-arm64 • Android 13 (API 33)
• Linux (desktop) • linux • linux-x64 • Arch Linux 6.12.10-arch1-1
[✓] Network resources
• All expected network resources are available.
! Doctor found issues in 1 category.