Постоянная DEPTH_STENCIL
Реализация
static const int DEPTH_STENCIL = 0x84F9;
© 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/DEPTH_STENCIL-constant.html
