Svg file with mask not working

Behaviour

Svg files including masks are rendered in low quality/pixelated. The following screenshot includes an svg with and without masks:

Expected behaviour

It is expected that the library can render all valid svg’s. Putting the XML content of SvgWithMask.svg (see example project) into this online svg renderer looks fine, but rendering it using react-native-svg looks pixelated.

Environment info

React native info output:

System:
    OS: macOS 10.15.4
    CPU: (12) x64 Intel(R) Core(TM) i7-9750H CPU @ 2.60GHz
    Memory: 386.13 MB / 32.00 GB
    Shell: 3.2.57 - /bin/bash
  Binaries:
    Node: 10.16.0 - /usr/local/bin/node
    Yarn: 1.19.2 - ~/.yarn/bin/yarn
    npm: 6.13.4 - /usr/local/bin/npm
    Watchman: Not Found
  Managers:
    CocoaPods: 1.8.4 - /usr/local/bin/pod
  SDKs:
    iOS SDK:
      Platforms: iOS 13.4, DriverKit 19.0, macOS 10.15, tvOS 13.4, watchOS 6.2
    Android SDK:
      API Levels: 19, 23, 24, 25, 26, 27, 28, 29
      Build Tools: 23.0.1, 23.0.3, 25.0.1, 25.0.2, 25.0.3, 26.0.0, 26.0.1, 26.0.3, 27.0.3, 28.0.0, 28.0.0, 28.0.2, 28.0.3, 29.0.2
      System Images: android-19 | Google APIs ARM EABI v7a, android-19 | Google APIs Intel x86 Atom, android-25 | Google APIs Intel x86 Atom, android-27 | Google APIs Intel x86 Atom, android-28 | Google APIs Intel x86 Atom, android-29 | Google APIs Intel x86 Atom
      Android NDK: Not Found
  IDEs:
    Android Studio: 3.6 AI-192.7142.36.36.6241897
    Xcode: 11.4.1/11E503a - /usr/bin/xcodebuild
  Languages:
    Java: 1.8.0_172 - /usr/bin/javac
    Python: 2.7.16 - /usr/bin/python
  npmPackages:
    @react-native-community/cli: Not Found
    react: 16.11.0 => 16.11.0
    react-native: 0.62.2 => 0.62.2
  npmGlobalPackages:
    *react-native*: Not Found

Library version: 12.1.0

Steps To Reproduce

An example project with the bug can be found here and instructions for running the example can be found in the example’s README.

[joebochill]

I too am having the same issue with masks causing a blurred effect.

As @beshur suggested, increasing the size of the viewbox definition for the SVG works as a temporary workaround. If the svg is used at a size that is ~2-3x the size of the viewbox, you start to notice the blurred edges of the mask.

We have a bunch of svg icons that are defined on a 24px viewbox and it would be nice to not have to update all of their viewboxes in order to use them.

[sheshnathiicmr]

reminding bot not to stale, I am facing the same