<?xml version="1.0"?>
<scene>
  <Group>
    <QuadMesh>
      <animated_positions>
        <positions>
          -2 -1 1
           0 -1 1
           0  1 1
          -2  1 1
        </positions>
        <positions>
           0 -1 1
           2 -1 1
           2  1 1
           0  1 1
        </positions>
      </animated_positions>
      <indices>
        0 1 2 3
      </indices>
      <material>
        <code>"OBJ"</code>
        <parameters>
          <float3 name="Kd">1 1 1</float3>
        </parameters>
      </material>
    </QuadMesh>
  </Group>
</scene>
