multiDraw method

@override void multiDraw(List<IndexedDraw> draws)

Several indexed draws of the same bindings in one call — DeviceFeature.multiDraw. Each entry follows drawIndexed's rules.

The call a batch of submeshes sharing one pipeline wants: WebGL2 turns it into one WEBGL_multi_draw call, and a backend without a native form may loop, which costs calls and not correctness.

Implementation

@override
void multiDraw(List<IndexedDraw> draws) => _gated(
  DeviceFeature.multiDraw,
  'multiDraw',
  List<IndexedDraw>.unmodifiable(draws),
);