[Impeller] ImageFilter.blur is not shown when sigma is greater than 85 #126487
Description
Is there an existing issue for this?
- I have searched the existing issues
- I have read the guide to filing a bug
Steps to reproduce
- Create a blurred image with
ImageFilteredwith anImageFilter.blurwith the sigmas set to 85 (ImageFilter.blur(sigmaX: 85, sigmaY: 85)) - Notice how the image is displayed correctly
- Set one (or both) of the sigmas to any value above 85
- Notice that the image is no longer shown
Expected results
The image should be shown with a blur sigma above 85, as it does with the Skia backend
Actual results
When the blur sigma is above 85, the image is not shown. Blur sigmas below 85 are not affected.
Code sample
Code sample
Full project, with an image set up: blur_test.zip
import 'dart:ui';
import 'package:flutter/material.dart';
void main() {
runApp(const MainApp());
}
class MainApp extends StatelessWidget {
const MainApp({super.key});
@override
Widget build(BuildContext context) {
return MaterialApp(
home: Scaffold(
body: ListView(
children: [
ImageFiltered(
imageFilter: ImageFilter.blur(sigmaX: 85, sigmaY: 85),
child: Image.asset("assets/flutter.png"),
),
ImageFiltered(
imageFilter: ImageFilter.blur(sigmaX: 86, sigmaY: 86),
child: Image.asset("assets/flutter.png"),
),
],
),
),
);
}
}
Screenshots or Video
Screenshots / Video demonstration
With Impeller:
With Skia:
Note that I had to run this in Android, as the steps to disable Impeller described at https://docs.flutter.dev/perf/impeller were not working.
Logs
Flutter Doctor output
Doctor output
[✓] Flutter (Channel stable, 3.10.0, on macOS 13.3.1 22E772610a darwin-arm64, locale en-GB)
• Flutter version 3.10.0 on channel stable at /Users/james/Development/flutter
• Upstream repository https://github.com/flutter/flutter.git
• Framework revision 84a1e904f4 (35 hours ago), 2023-05-09 07:41:44 -0700
• Engine revision d44b5a94c9
• Dart version 3.0.0
• DevTools version 2.23.1
[✓] Android toolchain - develop for Android devices (Android SDK version 33.0.1)
• Android SDK at /Users/james/Development/Android
• Platform android-33, build-tools 33.0.1
• ANDROID_HOME = /Users/james/Development/Android
• Java binary at: /Applications/Android Studio.app/Contents/jbr/Contents/Home/bin/java
• Java version OpenJDK Runtime Environment (build 11.0.15+0-b2043.56-8887301)
• All Android licenses accepted.
[✓] Xcode - develop for iOS and macOS (Xcode 14.3)
• Xcode at /Applications/Xcode-14.3.0.app/Contents/Developer
• Build 14E222b
• CocoaPods version 1.11.3
[✗] Chrome - develop for the web (Cannot find Chrome executable at /Applications/Google Chrome.app/Contents/MacOS/Google Chrome)
! Cannot find Chrome. Try setting CHROME_EXECUTABLE to a Chrome executable.
[✓] Android Studio (version 2022.1)
• Android Studio at /Applications/Android Studio.app/Contents
• 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 11.0.15+0-b2043.56-8887301)
[✓] VS Code (version 1.78.1)
• VS Code at /Applications/Visual Studio Code.app/Contents
• Flutter extension version 3.64.0
[✓] Connected device (2 available)
• iPhone 14 Pro (mobile) • 983AD08A-7BE7-4431-82BB-7B325710EBA4 • ios • com.apple.CoreSimulator.SimRuntime.iOS-16-2 (simulator)
• macOS (desktop) • macos • darwin-arm64 • macOS 13.3.1 22E772610a darwin-arm64
[✓] Network resources
• All expected network resources are available.
! Doctor found issues in 1 category.Metadata
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Labels
Important issues not at the top of the work listImpeller rendering backend issues and features requestsflutter/engine related. See also e: labels.Found to occur in 3.10Found to occur in 3.11The issue has been confirmed reproducible and is ready to work oniOS applications specificallyIssue is closed as already fixed in a newer version