<?xml version="1.0"?>
<scene version="2.2.1">
  <integrator type="path"/>
  <sensor type="perspective">
    <string name="fov_axis" value="smaller"/>
    <float name="fov" value="5"/>
    <transform name="to_world">
      <lookat origin="0,0,100" target="0, 0, 0" up="1, 0, 0"/>
    </transform>
    <sampler type="ldsampler">
      <integer name="sample_count" value="256"/>
    </sampler>
    <film type="hdrfilm">
      <integer name="width" value="1024"/>
      <integer name="height" value="1024"/>
      <string name="pixel_format" value="rgb"/>
    </film>
  </sensor>
  <!-- floor -->
  <shape type="rectangle">
    <transform name="to_world">
      <scale x="30" y="30" z="1"/>
    </transform>
    <bsdf type="diffuse">
      <spectrum name="reflectance" value="0.5"/>
    </bsdf>
  </shape>
  <!-- light -->
  <shape type="disk">
    <transform name="to_world">
      <scale x="0.05" y="0.05"/>
      <rotate angle="-90" x="1"/>
      <translate x="0" y="0" z="0.2"/>
    </transform>
    <emitter type="area">
      <spectrum name="radiance" value="500"/>
    </emitter>
  </shape>
</scene>
