Add directional wind, turbulence, or even a rotating fan object to make flags wave or trees sway (when combined with other extensions).
Elena had spent three hours trying to model draped fabric manually. She used the Sandbox tools, she moved vertices one by one, and she tried to use pre-made components from the 3D Warehouse. The result looked like crumpled paper or stiff plastic sheets. It didn’t look like fabric. It looked like a geometry student’s bad homework. AMS ClothWorks V1.8.0 For SketchUp Free Download