<fxlayout help_file="PNPerspectiveIwa.html">
  <page name="PN Perspective Iwa">
    <control>renderMode</control>
    <control>noiseType</control>
    <control>size</control>
    <control>evolution</control>
    <control>octaves</control>
    <control>offset</control>
    <control>persistance_intensity</control>
    <control>persistance_size</control>
    <control>persistance_evolution</control>
    <control>persistance_offset</control>
    <control>fov</control>
    <control>eyeLevel</control>
    <control>alpha_rendering</control>
    <vbox modeSensitive="renderMode" mode="2,3,4">
      <control>waveHeight</control>
    </vbox>
    <vbox modeSensitive="renderMode" mode="3">
      <control>normalize_fresnel</control>
      <control>normalize_margin</control>
    </vbox>
    <visibleToggle> 
      <controller>normalize_fresnel</controller>
      <on>normalize_margin</on>
    </visibleToggle>
  </page>
</fxlayout>