frameData method
Copies data into this frame's transient memory, aligned for use as
uniforms, vertices or indices. A commands list made or submitted
during the frame keeps it from being written again until the GPU has
finished that list.
Implementation
@override
GpuBufferView frameData(ByteData data) {
final view = _NullView(frameBytes, data.lengthInBytes);
frameBytes += data.lengthInBytes;
return view;
}