<?xml version="1.0"?>

<scene>
  <Group>
    <TriangleMesh>
      <positions>
        -20 0 -20
        -20 0 +20
        +20 0 +20
        +20 0 -20
      </positions>
      <triangles>
        0 2 1
        0 3 2
      </triangles>
      <material>
        <code>"OBJ"</code>
        <parameters>
          <float3 name="Kd">1 1 1</float3>
        </parameters>
      </material>
    </TriangleMesh>

    <Curves basis="bezier" type="round">

      <positions>
        0 0 -4 0.01
        8 4 -4 0.01
       -4 4 -4 0.01
        4 0 -5 0.01
        
        0 0 -2 0.02
        8 4 -2 0.02
       -4 4 -2 0.02
        4 0 -3 0.02

        0 0 0 0.04
        8 4 0 0.04
       -4 4 0 0.04
        4 0 -1 0.04
      </positions>

      <indices>
        0
        4
        8
      </indices>

      <material>
        <code>"OBJ"</code>
        <parameters>
          <float3 name="Kd">1 0 0</float3>
        </parameters>
      </material>

    </Curves>

  </Group>
</scene>
