Постоянная SAMPLE_ALPHA_TO_COVERAGE
Реализация
static const int SAMPLE_ALPHA_TO_COVERAGE = 0x809E;
© 2012 the Dart project authors
Licensed under the BSD 3-Clause "New" or "Revised" License.
https://api.dart.dev/stable/2.18.5/dart-web_gl/WebGL/SAMPLE_ALPHA_TO_COVERAGE-constant.html
