get depth image

structured_light_bowl_depth.xml

<?xml version="1.0" encoding="utf-8"?>

<scene version="0.5.0">
	
	<integrator type="multichannel">
    <integrator type="path"/>

    <integrator type="field">
      <string name="field" value="distance"/>
    </integrator>
  </integrator>

  <default name="sampleCount" value="4"/>

	<sensor type="perspective">
		<string name="fovAxis" value="smaller"/>
		<float name="nearClip" value="0.1"/>
		<float name="farClip" value="100"/>
		<float name="focusDistance" value="1000"/>
		<transform name="toWorld">
			<lookAt origin="0, 4, 0.0" target="0, 0,0.0" up="1, 0, 0"/>
		</transform>
		<float name="fov" value="39.3077"/>

		<sampler type="ldsampler">
			<integer name="sampleCount" value="$sampleCount"/>
		</sampler>

		<film type="hdrfilm">
			<integer name="width" value="1024"/>
			<integer name="height" value="768"/>

			<rfilter type="gaussian"/>
			<string name="pixelFormat" value="rgb, luminance"/>
			<string name="channelNames" value="color, distance"/>
		</film>
	</sensor>

	<default name="codefile" value="images/white_512.png"/>
	<emitter type="perspectiveprojector" id="light 0">
    <string name="fovAxis" value="smaller"/>
    <float name="nearClip" value="0.1"/>
    <float name="farClip" value="100"/>
    <float name="focusDistance" value="10000"/>
    <transform name="toWorld">
      <lookAt origin="0, 4, 0.1" target="0,0,0.1" up="1, 0, 0"/>
    </transform>
    <float name="fov" value="39.3077"/>
    <string name="filename" value="$codefile"/>
    <float name="scale" value="10"/>
  </emitter>

	<shape type="obj">
		<string name="filename" value="meshes/vgroove.obj"/>

		<bsdf type="diffuse">
			<spectrum name="reflectance" value="1, 0.5, 0"/>
		</bsdf>
	</shape>
</scene>