Where can I find all the parameters of the gazebo_ros_openni_kinect plugin?

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Hello,

As the title said, I want to set a simulation camera by gazebo_ros_openni_kinect plugin, but Where can I find all the parameters of the gazebo_ros_openni_kinect plugin? An example is below:

 <plugin name="camera_plugin" filename="libgazebo_ros_openni_kinect.so">
      <baseline>0.2</baseline>
      <alwaysOn>true</alwaysOn>
      <!-- Keep this zero, update_rate in the parent <sensor> tag
        will control the frame rate. -->
      <updateRate>0.0</updateRate>
      <cameraName>camera_ir</cameraName>
      <imageTopicName>/camera/color/image_raw</imageTopicName>
      <cameraInfoTopicName>/camera/color/camera_info</cameraInfoTopicName>
      <depthImageTopicName>/camera/depth/image_raw</depthImageTopicName>
      <depthImageCameraInfoTopicName>/camera/depth/camera_info</depthImageCameraInfoTopicName>
      <pointCloudTopicName>/camera/depth/points</pointCloudTopicName>
      <frameName>camera_link</frameName>
      <pointCloudCutoff>0.5</pointCloudCutoff>
      <pointCloudCutoffMax>3.0</pointCloudCutoffMax>
      <distortionK1>0</distortionK1>
      <distortionK2>0</distortionK2>
      <distortionK3>0</distortionK3>
      <distortionT1>0</distortionT1>
      <distortionT2>0</distortionT2>
      <CxPrime>0</CxPrime>
      <Cx>0</Cx>
      <Cy>0</Cy>
      <focalLength>0</focalLength>
      <hackBaseline>0</hackBaseline>
    </plugin>