void reset()
{
// Every queue has a base transform that is always the current transform.
// This keeps the code a bit more uniform, and allows the window to
// set a base transform in the main rendering queue.
individual.resize(1);
absolute.resize(1);
currentIterator = absolute.begin();
}
void clear()
{
absoluteTransforms.resize(1);
// Important!! Due to all the swapping, the first entry in the list is not necessarily
// the base matrix. We need to restore it.
absoluteTransforms.front() = scale(1);
individualTransforms.resize(1);
clipRectStack.clear();
glBlocks.clear();
ops.clear();
}