<?xml version="1.0" encoding="utf-8"?>
<PropertyList>
  <name>Effects/HDR/atmos-sky-view</name>
  <parameters>
    <!-- atmos.glsl -->
    <aerosol-absorption-cross-section type="vec4d">
      <use>/sim/rendering/hdr/atmos/aerosol-absorption-cross-section[0]</use>
      <use>/sim/rendering/hdr/atmos/aerosol-absorption-cross-section[1]</use>
      <use>/sim/rendering/hdr/atmos/aerosol-absorption-cross-section[2]</use>
      <use>/sim/rendering/hdr/atmos/aerosol-absorption-cross-section[3]</use>
    </aerosol-absorption-cross-section>
    <aerosol-scattering-cross-section type="vec4d">
       <use>/sim/rendering/hdr/atmos/aerosol-scattering-cross-section[0]</use>
       <use>/sim/rendering/hdr/atmos/aerosol-scattering-cross-section[1]</use>
       <use>/sim/rendering/hdr/atmos/aerosol-scattering-cross-section[2]</use>
       <use>/sim/rendering/hdr/atmos/aerosol-scattering-cross-section[3]</use>
    </aerosol-scattering-cross-section>
    <aerosol-base-density>
      <use>/sim/rendering/hdr/atmos/aerosol-base-density</use>
    </aerosol-base-density>
    <aerosol-relative-background-density>
      <use>/sim/rendering/hdr/atmos/aerosol-relative-background-density</use>
    </aerosol-relative-background-density>
    <aerosol-scale-height>
      <use>/sim/rendering/hdr/atmos/aerosol-scale-height</use>
    </aerosol-scale-height>
    <aerosol-turbidity>
      <use>/sim/rendering/hdr/atmos/aerosol-turbidity</use>
    </aerosol-turbidity>
    <fog-density>
      <use>/sim/rendering/hdr/atmos/fog-density</use>
    </fog-density>
    <fog-scale-height>
      <use>/sim/rendering/hdr/atmos/fog-scale-height</use>
    </fog-scale-height>
    <fog-height-offset>
      <use>/sim/rendering/hdr/atmos/fog-height-offset</use>
    </fog-height-offset>
    <ozone-mean-dobson>
      <use>/sim/rendering/hdr/atmos/ozone-mean-dobson</use>
    </ozone-mean-dobson>
    <ground-albedo type="vec4d">
      <use>/sim/rendering/hdr/atmos/ground-albedo[0]</use>
      <use>/sim/rendering/hdr/atmos/ground-albedo[1]</use>
      <use>/sim/rendering/hdr/atmos/ground-albedo[2]</use>
      <use>/sim/rendering/hdr/atmos/ground-albedo[3]</use>
    </ground-albedo>
  </parameters>
  <technique n="1">
    <pass>
      <program>
        <vertex-shader>Shaders/HDR/quad.vert</vertex-shader>
        <fragment-shader>Shaders/HDR/atmos_sky_view.frag</fragment-shader>
        <fragment-shader>Shaders/HDR/math.glsl</fragment-shader>
        <fragment-shader>Shaders/HDR/atmos.glsl</fragment-shader>
      </program>
      <uniform>
        <name>transmittance_lut</name>
        <type>sampler-2d</type>
        <value type="int">0</value>
      </uniform>
      <!-- atmos.glsl -->
      <uniform>
        <name>aerosol_absorption_cross_section</name>
        <type>float-vec4</type>
        <value><use>aerosol-absorption-cross-section</use></value>
      </uniform>
      <uniform>
        <name>aerosol_scattering_cross_section</name>
        <type>float-vec4</type>
        <value><use>aerosol-scattering-cross-section</use></value>
      </uniform>
      <uniform>
        <name>aerosol_base_density</name>
        <type>float</type>
        <value><use>aerosol-base-density</use></value>
      </uniform>
      <uniform>
        <name>aerosol_relative_background_density</name>
        <type>float</type>
        <value><use>aerosol-relative-background-density</use></value>
      </uniform>
      <uniform>
        <name>aerosol_scale_height</name>
        <type>float</type>
        <value><use>aerosol-scale-height</use></value>
      </uniform>
      <uniform>
        <name>aerosol_turbidity</name>
        <type>float</type>
        <value><use>aerosol-turbidity</use></value>
      </uniform>
      <uniform>
        <name>fog_density</name>
        <type>float</type>
        <value><use>fog-density</use></value>
      </uniform>
      <uniform>
        <name>fog_scale_height</name>
        <type>float</type>
        <value><use>fog-scale-height</use></value>
      </uniform>
      <uniform>
        <name>fog_height_offset</name>
        <type>float</type>
        <value><use>fog-height-offset</use></value>
      </uniform>
      <uniform>
        <name>ozone_mean_dobson</name>
        <type>float</type>
        <value><use>ozone-mean-dobson</use></value>
      </uniform>
      <uniform>
        <name>ground_albedo</name>
        <type>float-vec4</type>
        <value><use>ground-albedo</use></value>
      </uniform>
    </pass>
  </technique>
</PropertyList>