Fixes https://github.com/flutter/flutter/issues/130613 Before this patch, the test would fail to render anything because the culling would decide it fell outside the cull rect when the transform has perspective sometimes. We should fix our Rect::TransformBounds implementation, but I can't quite seem to get it happy enough here so I'm just bailing out on culling if there is perspective instead, which is safe. This also makes the patch a bit easier/safer to cherry pick since it's a simple de-optimization when perspective is involved for the sake of fidelity, instead of a larger change that may have other side effects. Filed https://github.com/flutter/flutter/issues/131445 to track the perspective issue.
Flutter Engine
Flutter is Google's SDK for crafting beautiful, fast user experiences for mobile, web, and desktop from a single codebase. Flutter works with existing code, is used by developers and organizations around the world, and is free and open source.
The Flutter Engine is a portable runtime for hosting Flutter applications. It implements Flutter's core libraries, including animation and graphics, file and network I/O, accessibility support, plugin architecture, and a Dart runtime and compile toolchain. Most developers will interact with Flutter via the Flutter Framework, which provides a modern, reactive framework, and a rich set of platform, layout and foundation widgets.
If you want to run/contribute to Flutter Web engine, more tooling can be found at felt. This is a tool written to make web engine development experience easy.
If you are new to Flutter, then you will find more general information on the Flutter project, including tutorials and samples, on our Web site at Flutter.dev. For specific information about Flutter's APIs, consider our API reference which can be found at the docs.flutter.dev.
Flutter is a fully open source project, and we welcome contributions. Information on how to get started can be found at our contributor guide.