fgdata/gui/dialogs/advanced-graphics-options.xml

<?xml version="1.0"?>

<PropertyList>
  <name>advanced-graphics-options</name>
  <modal>false</modal>
  <layout>vbox</layout>
  <default-padding>3</default-padding>

  <group>
    <layout>hbox</layout>
    <default-padding>1</default-padding>

    <empty>
      <stretch>true</stretch>
    </empty>

    <text>
      <label>Advanced Graphics Options</label>
    </text>

    <empty>
      <stretch>true</stretch>
    </empty>

    <button>
      <legend/>
      <key>Esc</key>
      <pref-width>16</pref-width>
      <pref-height>16</pref-height>
      <border>2</border>
      <binding>
        <command>dialog-close</command>
      </binding>
    </button>
  </group>

  <hrule/>

  <group>
    <layout>hbox</layout>

    <!-- only for a gap -->
    <group>
      <layout>vbox</layout>
      <default-padding>1</default-padding>
      <text>
        <label> </label>
      </text>
    </group>

    <group>
      <layout>vbox</layout>

      <group>
        <layout>hbox</layout>
        <text>
          <label>Rendering Mode</label>
          <halign>left</halign>
        </text>
        <hrule>
          <stretch>true</stretch>
        </hrule>
      </group>

      <group>
        <layout>hbox</layout>
        <halign>left</halign>
        <group>
          <layout>table</layout>
          <radio>
            <row>0</row>
            <col>0</col>
            <halign>left</halign>
            <name>low-spec-mode</name>
            <property>/sim/gui/dialogs/advanced/mode/low-spec-mode</property>
            <live>true</live>
            <label>Low Specifications</label>
            <binding>
              <command>property-assign</command>
              <property>/sim/gui/dialogs/advanced/mode/low-spec-mode</property>
              <value>1</value>
            </binding>
            <binding>
              <command>property-assign</command>
              <property>/sim/gui/dialogs/advanced/mode/als-mode</property>
              <value>0</value>
            </binding>
            <binding>
              <command>property-assign</command>
              <property>/sim/rendering/shaders/skydome</property>
              <value>0</value>
            </binding>
          </radio>

          <empty>
            <row>0</row>
            <col>1</col>
            <stretch>true</stretch>
          </empty>

          <checkbox>
            <row>0</row>
            <col>2</col>
            <halign>right</halign>
            <name>use-shaders</name>
            <property>/sim/rendering/shaders/use-shaders</property>
            <label>Use Shaders</label>
            <live>true</live>
            <enable>
              <not>
                <property>/sim/rendering/shaders/skydome</property>
              </not>
            </enable>
            <binding>
              <command>dialog-apply</command>
              <object-name>use-shaders</object-name>
            </binding>
          </checkbox>
        </group>

      </group>

      <textbox>
        <name>low-spec-description</name>
        <halign>fill</halign>
        <stretch>true</stretch>
        <pref-width>400</pref-width>
        <pref-height>80</pref-height>
        <slider>15</slider>
        <editable>false</editable>
        <wrap>true</wrap>
        <live>true</live>
        <top-line>0</top-line>
        <property>/sim/gui/dialogs/advanced/low-spec-description</property>
      </textbox>


      <group>
        <layout>hbox</layout>
        <halign>left</halign>

        <radio>
          <halign>left</halign>
          <name>als-mode</name>
          <property>/sim/gui/dialogs/advanced/mode/als-mode</property>
          <live>true</live>
          <label>Atmospheric Light Scattering (ALS)</label>
          <binding>
            <command>property-assign</command>
            <property>/sim/gui/dialogs/advanced/mode/low-spec-mode</property>
            <value>0</value>
          </binding>
          <binding>
            <command>property-assign</command>
            <property>/sim/gui/dialogs/advanced/mode/als-mode</property>
            <value>1</value>
          </binding>
          <binding>
            <command>property-assign</command>
            <property>/sim/rendering/shaders/skydome</property>
            <value>1</value>
          </binding>
        </radio>

      </group>

      <textbox>
        <name>als-description</name>
        <halign>fill</halign>
        <stretch>true</stretch>
        <pref-width>400</pref-width>
        <pref-height>100</pref-height>
        <slider>15</slider>
        <editable>false</editable>
        <wrap>true</wrap>
        <live>true</live>
        <top-line>0</top-line>
        <property>/sim/gui/dialogs/advanced/als-description</property>
      </textbox>

      <group>
        <layout>hbox</layout>
        <text>
          <enable>
            <property>/sim/rendering/shaders/skydome</property>
          </enable>
          <label>ALS Shader Settings</label>
          <halign>left</halign>
        </text>
        <hrule>
          <stretch>true</stretch>
        </hrule>
      </group>

      <group>
        <layout>table</layout>

        <text>
          <enable>
            <property>/sim/rendering/shaders/skydome</property>
          </enable>
          <row>0</row>
          <col>0</col>
          <halign>left</halign>
          <label>Terrain Quality</label>
        </text>
        <combo>
          <enable>
            <property>/sim/rendering/shaders/skydome</property>
          </enable>
          <row>0</row>
          <col>1</col>
          <name>terrain-quality</name>
          <pref-width>200</pref-width>
          <property>/sim/gui/dialogs/advanced/terrain-quality</property>
          <value>Low</value>
          <value>Medium</value>
          <value>High</value>
          <value>Ultra</value>
          <binding>
            <command>dialog-apply</command>
            <object-name>terrain-quality</object-name>
          </binding>
          <binding>
            <command>nasal</command>
            <script>
              var val = getprop("/sim/gui/dialogs/advanced/terrain-quality");
              if (val == "Medium") {
                setprop("/sim/rendering/shaders/landmass", 4);
                setprop("/sim/rendering/shaders/transition", 4);
              } else if (val == "High") {
                setprop("/sim/rendering/shaders/landmass", 5);
                setprop("/sim/rendering/shaders/transition", 5);
              } else if (val == "Ultra") {
                setprop("/sim/rendering/shaders/landmass", 6);
                setprop("/sim/rendering/shaders/transition", 6);
              } else {
                setprop("/sim/rendering/shaders/landmass", 3);
                setprop("/sim/rendering/shaders/transition", 2);
              }
            </script>
          </binding>
        </combo>

        <text>
          <enable>
            <property>/sim/rendering/shaders/skydome</property>
          </enable>
          <row>1</row>
          <col>0</col>
          <halign>left</halign>
          <label>Model Effects</label>
        </text>
        <combo>
          <enable>
            <property>/sim/rendering/shaders/skydome</property>
          </enable>
          <row>1</row>
          <col>1</col>
          <name>model-effects</name>
          <pref-width>200</pref-width>
          <property>/sim/gui/dialogs/advanced/model-effects</property>
          <value>Disabled</value>
          <value>Enabled</value>
          <binding>
            <command>dialog-apply</command>
            <object-name>model-quality</object-name>
          </binding>
          <binding>
            <command>nasal</command>
            <script>
              var val = getprop("/sim/gui/dialogs/advanced/model-effects");
              if (val == "Enabled") {
                setprop("/sim/rendering/shaders/model", 1);
              } else {
                setprop("/sim/rendering/shaders/model", 0);
              }
            </script>
          </binding>
        </combo>

        <text>
          <enable>
            <property>/sim/rendering/shaders/skydome</property>
          </enable>
          <row>2</row>
          <col>0</col>
          <halign>left</halign>
          <label>Water Effects</label>
        </text>
        <combo>
          <enable>
            <property>/sim/rendering/shaders/skydome</property>
          </enable>
          <row>2</row>
          <col>1</col>
          <name>water-effects</name>
          <pref-width>200</pref-width>
          <property>/sim/gui/dialogs/advanced/water-effects</property>
          <value>Disabled</value>
          <value>Low</value>
          <value>High</value>
          <binding>
            <command>dialog-apply</command>
            <object-name>water-effects</object-name>
          </binding>
          <binding>
            <command>nasal</command>
            <script>
              var val = getprop("/sim/gui/dialogs/advanced/water-effects");
              if (val == "Low") {
                setprop("/sim/rendering/shaders/water", 4);
              } else if (val == "High") {
                setprop("/sim/rendering/shaders/water", 5);
              } else {
                setprop("/sim/rendering/shaders/water", 0);
              }
            </script>
          </binding>
        </combo>

        <text>
          <enable>
            <property>/sim/rendering/shaders/skydome</property>
          </enable>
          <row>4</row>
          <col>0</col>
          <halign>left</halign>
          <label>Clouds Detail</label>
        </text>
        <combo>
          <enable>
            <property>/sim/rendering/shaders/skydome</property>
          </enable>
          <row>4</row>
          <col>1</col>
          <name>clouds</name>
          <pref-width>200</pref-width>
          <property>/sim/gui/dialogs/advanced/clouds</property>
          <value>Low</value>
          <value>High</value>
          <binding>
            <command>dialog-apply</command>
            <object-name>clouds</object-name>
          </binding>
          <binding>
            <command>nasal</command>
            <script>
              var val = getprop("/sim/gui/dialogs/advanced/clouds");
              if (val == "High") {
                setprop("/sim/rendering/shaders/clouds", 1);
              } else {
                setprop("/sim/rendering/shaders/clouds", 0);
              }
            </script>
          </binding>
        </combo>

        <text>
          <enable>
            <property>/sim/rendering/shaders/skydome</property>
          </enable>
          <row>5</row>
          <col>0</col>
          <halign>left</halign>
          <label>Wind Effects</label>
        </text>
        <combo>
          <enable>
            <property>/sim/rendering/shaders/skydome</property>
          </enable>
          <row>5</row>
          <col>1</col>
          <name>wind-effects</name>
          <pref-width>200</pref-width>
          <property>/sim/gui/dialogs/advanced/wind-effects</property>
          <value>Disabled</value>
          <value>Enabled</value>
          <binding>
            <command>dialog-apply</command>
            <object-name>wind-effects</object-name>
          </binding>
          <binding>
            <command>nasal</command>
            <script>
              var val = getprop("/sim/gui/dialogs/advanced/wind-effects");
              if (val == "Enabled") {
                setprop("/sim/rendering/shaders/wind-effects", 2);
              } else {
                setprop("/sim/rendering/shaders/wind-effects", 0);
              }
            </script>
          </binding>
        </combo>

        <text>
          <enable>
            <property>/sim/rendering/shaders/skydome</property>
          </enable>
          <row>6</row>
          <col>0</col>
          <halign>left</halign>
          <label>Overlay</label>
        </text>
        <combo>
          <enable>
            <property>/sim/rendering/shaders/skydome</property>
          </enable>
          <row>6</row>
          <col>1</col>
          <name>overlay</name>
          <pref-width>200</pref-width>
          <property>/sim/gui/dialogs/advanced/overlay</property>
          <value>Disabled</value>
          <value>Enabled</value>
          <binding>
            <command>dialog-apply</command>
            <object-name>overlay</object-name>
          </binding>
          <binding>
            <command>nasal</command>
            <script>
              var val = getprop("/sim/gui/dialogs/advanced/overlay");
              if (val == "Enabled") {
                setprop("/sim/rendering/shaders/vegetation-effects", 1);
              } else {
                setprop("/sim/rendering/shaders/vegetation-effects", 0);
              }
            </script>
          </binding>
        </combo>

      </group>

      <text>
        <visible>
          <not>
            <property>/sim/rendering/shaders/skydome</property>
          </not>
        </visible>
        <halign>left</halign>
        <color>
          <red>1.0</red>
          <green>0.6</green>
          <blue>0.6</blue>
        </color>
        <label>These settings can only be changed when using ALS.</label>
      </text>

      <group>
        <layout>vbox</layout>
        <stretch>1</stretch>
      </group>

    </group>

    <!-- only for a gap -->
    <group>
      <layout>vbox</layout>
      <default-padding>1</default-padding>
      <text>
        <label> </label>
      </text>
    </group>

    <vrule/>

    <!-- only for a gap -->
    <group>
      <layout>vbox</layout>
      <default-padding>1</default-padding>
      <text>
        <label> </label>
      </text>
    </group>

    <group>
      <layout>vbox</layout>

      <group>
        <layout>hbox</layout>
        <text>
          <label>Shadows and Lights</label>
          <halign>left</halign>
        </text>
        <hrule>
          <stretch>true</stretch>
        </hrule>
      </group>

      <group>
        <layout>table</layout>
        <text>
          <row>0</row>
          <col>0</col>
          <halign>left</halign>
          <label>Shadow Quality</label>
        </text>
        <text>
          <row>0</row>
          <col>1</col>
          <label>                </label>
        </text>
        <combo>
          <row>0</row>
          <col>2</col>
          <name>shadows</name>
          <pref-width>200</pref-width>
          <property>/sim/gui/dialogs/advanced/shadows</property>
          <value>Disabled</value>
          <value>Low</value>
          <value>Medium</value>
          <value>High</value>
          <value>Ultra</value>
          <binding>
            <command>dialog-apply</command>
            <object-name>shadows</object-name>
          </binding>
          <binding>
            <command>nasal</command>
            <script>
              var val = getprop("/sim/gui/dialogs/advanced/shadows");
              if (val == "Low") {
                setprop("/sim/rendering/shadows/enabled", 1);
                setprop("/sim/rendering/shadows/sun-atlas-size", 1024);
              } else if (val == "Medium") {
                setprop("/sim/rendering/shadows/enabled", 1);
                setprop("/sim/rendering/shadows/sun-atlas-size", 2048);
              } else if (val == "High") {
                setprop("/sim/rendering/shadows/enabled", 1);
                setprop("/sim/rendering/shadows/sun-atlas-size", 4096);
              } else if (val == "Ultra") {
                setprop("/sim/rendering/shadows/enabled", 1);
                setprop("/sim/rendering/shadows/sun-atlas-size", 8192);
              } else {
                setprop("/sim/rendering/shadows/enabled", 0);
              }
            </script>
          </binding>
        </combo>
      </group>

      <checkbox>
        <halign>left</halign>
        <label>Dynamic lighting</label>
        <name>dynamic-lighting</name>
        <property>/sim/rendering/dynamic-lighting/enabled</property>
        <binding>
          <command>dialog-apply</command>
          <object-name>dynamic-lighting</object-name>
        </binding>
      </checkbox>

      <checkbox>
        <halign>left</halign>
        <label>Limit the number of lights being displayed</label>
        <name>limit-lights</name>
        <property>/sim/gui/dialogs/advanced/limit-lights</property>
        <binding>
          <command>dialog-apply</command>
          <object-name>limit-lights</object-name>
        </binding>
        <binding>
          <command>nasal</command>
          <script>
            var limit_lights = getprop("/sim/gui/dialogs/advanced/limit-lights");
            if (limit_lights) {
              setprop("/sim/rendering/dynamic-lighting/max-pointlights", 8);
              setprop("/sim/rendering/dynamic-lighting/max-spotlights", 8);
            } else {
              setprop("/sim/rendering/dynamic-lighting/max-pointlights", 1024);
              setprop("/sim/rendering/dynamic-lighting/max-spotlights", 1024);
            }
          </script>
        </binding>
        <enable>
          <property>/sim/rendering/dynamic-lighting/enabled</property>
        </enable>
      </checkbox>

      <group>
        <layout>hbox</layout>
        <halign>right</halign>
        <text>
          <label>Maximum number of point lights</label>
          <enable>
            <and>
              <property>/sim/rendering/dynamic-lighting/enabled</property>
              <property>/sim/gui/dialogs/advanced/limit-lights</property>
            </and>
          </enable>
        </text>
        <slider>
          <enable>
            <and>
              <property>/sim/rendering/dynamic-lighting/enabled</property>
              <property>/sim/gui/dialogs/advanced/limit-lights</property>
            </and>
          </enable>
          <name>max-lights</name>
          <min>1</min>
          <max>16</max>
          <live>true</live>
          <property>/sim/rendering/dynamic-lighting/max-pointlights</property>
          <binding>
            <command>dialog-apply</command>
            <object-name>max-lights</object-name>
          </binding>
        </slider>
        <text>
          <enable>
            <and>
              <property>/sim/rendering/dynamic-lighting/enabled</property>
              <property>/sim/gui/dialogs/advanced/limit-lights</property>
            </and>
          </enable>
          <label>12345678</label>
          <format>%.0f</format>
          <live>true</live>
          <property>/sim/rendering/dynamic-lighting/max-pointlights</property>
        </text>
      </group>

      <group>
        <layout>hbox</layout>
        <halign>right</halign>
        <text>
          <label>Maximum number of spot lights</label>
          <enable>
            <and>
              <property>/sim/rendering/dynamic-lighting/enabled</property>
              <property>/sim/gui/dialogs/advanced/limit-lights</property>
            </and>
          </enable>
        </text>
        <slider>
          <enable>
            <and>
              <property>/sim/rendering/dynamic-lighting/enabled</property>
              <property>/sim/gui/dialogs/advanced/limit-lights</property>
            </and>
          </enable>
          <name>max-lights</name>
          <min>1</min>
          <max>16</max>
          <live>true</live>
          <property>/sim/rendering/dynamic-lighting/max-spotlights</property>
          <binding>
            <command>dialog-apply</command>
            <object-name>max-lights</object-name>
          </binding>
        </slider>
        <text>
          <enable>
            <and>
              <property>/sim/rendering/dynamic-lighting/enabled</property>
              <property>/sim/gui/dialogs/advanced/limit-lights</property>
            </and>
          </enable>
          <label>12345678</label>
          <format>%.0f</format>
          <live>true</live>
          <property>/sim/rendering/dynamic-lighting/max-spotlights</property>
        </text>
      </group>

      <group>
        <layout>hbox</layout>
        <text>
          <label>Scenery Layers</label>
          <halign>left</halign>
        </text>
        <hrule>
          <stretch>true</stretch>
        </hrule>
      </group>

      <group>
        <layout>table</layout>

        <text>
          <row>0</row>
          <col>0</col>
          <halign>left</halign>
          <label>Pylons and power lines</label>
        </text>
        <combo>
          <row>0</row>
          <col>1</col>
          <name>pylons</name>
          <pref-width>200</pref-width>
          <property>/sim/gui/dialogs/rendering/pylons</property>
          <value>Disabled</value>
          <value>Basic</value>
          <value>Detailed</value>
          <binding>
            <command>dialog-apply</command>
            <object-name>pylons</object-name>
          </binding>
          <binding>
            <command>nasal</command>
            <script>
              var val = getprop("/sim/gui/dialogs/rendering/pylons");
              if (val == "Detailed") {
                setScenerySuffix("Pylons", 1);
                setScenerySuffix("Details", 1);
              } else if (val == "Basic") {
                setScenerySuffix("Pylons", 1);
                setScenerySuffix("Details", 0);
              } else {
                setScenerySuffix("Pylons", 0);
                setScenerySuffix("Details", 0);
              }
            </script>
          </binding>
        </combo>

        <text>
          <row>1</row>
          <col>0</col>
          <halign>left</halign>
          <label>Detailed Roads and Railways</label>
        </text>
        <combo>
          <row>1</row>
          <col>1</col>
          <name>roads</name>
          <pref-width>200</pref-width>
          <property>/sim/gui/dialogs/rendering/roads</property>
          <value>Disabled</value>
          <value>Enabled</value>
          <binding>
            <command>dialog-apply</command>
            <object-name>roads</object-name>
          </binding>
          <binding>
            <command>nasal</command>
            <script>
              var val = getprop("/sim/gui/dialogs/rendering/roads");
              if (val == "Enabled") {
                setScenerySuffix("Roads", 1);
              } else {
                setScenerySuffix("Roads", 0);
              }
            </script>
          </binding>
        </combo>

        <text>
          <row>2</row>
          <col>0</col>
          <halign>left</halign>
          <label>Buildings</label>
        </text>
        <combo>
          <row>2</row>
          <col>1</col>
          <name>buildings</name>
          <pref-width>200</pref-width>
          <property>/sim/gui/dialogs/rendering/buildings</property>
          <value>Disabled</value>
          <value>Randomly Generated</value>
          <value>OpenStreetMap Data</value>
          <binding>
            <command>dialog-apply</command>
            <object-name>buildings</object-name>
          </binding>
          <binding>
            <command>nasal</command>
            <script>
              var val = getprop("/sim/gui/dialogs/rendering/buildings");
              if (val == "Disabled") {
                setprop("/sim/rendering/random-buildings", 0);
                setprop("/sim/rendering/osm-buildings", 0);
                setScenerySuffix("Buildings", 0);
              }

              if (val == "Randomly Generated") {
                setprop("/sim/rendering/random-buildings", 1);
                setprop("/sim/rendering/osm-buildings", 0);
                setScenerySuffix("Buildings", 0);
              }

              if (val == "OpenStreetMap Data") {
                setprop("/sim/rendering/random-buildings", 0);
                setprop("/sim/rendering/osm-buildings", 1);
                setScenerySuffix("Buildings", 1);
              }
            </script>
          </binding>
        </combo>

        <text>
          <row>3</row>
          <col>0</col>
          <halign>left</halign>
          <label>Random Scenery Objects</label>
        </text>
        <combo>
          <row>3</row>
          <col>1</col>
          <name>random-objects</name>
          <pref-width>200</pref-width>
          <property>/sim/gui/dialogs/rendering/random-objects</property>
          <value>Disabled</value>
          <value>Enabled</value>
          <binding>
            <command>dialog-apply</command>
            <object-name>random-objects</object-name>
          </binding>
          <binding>
            <command>nasal</command>
            <script>
              var val = getprop("/sim/gui/dialogs/rendering/random-objects");
              if (val == "Enabled") {
                setprop("/sim/rendering/random-objects", 1);
              } else {
                setprop("/sim/rendering/random-objects", 0);
              }
            </script>
          </binding>
        </combo>

        <text>
          <row>4</row>
          <col>0</col>
          <halign>left</halign>
          <label>Autogenerated Vegetation</label>
        </text>
        <combo>
          <row>4</row>
          <col>1</col>
          <name>random-vegetation</name>
          <pref-width>200</pref-width>
          <property>/sim/gui/dialogs/rendering/random-vegetation</property>
          <value>Disabled</value>
          <value>Ultra Low Density</value>
          <value>Very Low Density</value>
          <value>Low Density</value>
          <value>Medium Density</value>
          <value>High Density</value>
          <value>Very High Density</value>
          <value>Ultra High Density</value>
          <binding>
            <command>dialog-apply</command>
            <object-name>random-vegetation</object-name>
          </binding>
          <binding>
            <command>nasal</command>
            <script>
              var val = getprop("/sim/gui/dialogs/rendering/random-vegetation");
              if (val == "Disabled") {
                setprop("/sim/rendering/random-vegetation", 0);
              }

              if (val == "Ultra Low Density") {
                setprop("/sim/rendering/random-vegetation", 1);
                setprop("/sim/rendering/vegetation-density", 0.1);
              }

              if (val == "Very Low Density") {
                setprop("/sim/rendering/random-vegetation", 1);
                setprop("/sim/rendering/vegetation-density", 0.25);
              }

              if (val == "Low Density") {
                setprop("/sim/rendering/random-vegetation", 1);
                setprop("/sim/rendering/vegetation-density", 0.5);
              }

              if (val == "Medium Density") {
                setprop("/sim/rendering/random-vegetation", 1);
                setprop("/sim/rendering/vegetation-density", 1.0);
              }

              if (val == "High Density") {
                setprop("/sim/rendering/random-vegetation", 1);
                setprop("/sim/rendering/vegetation-density", 2.0);
              }

              if (val == "Very High Density") {
                setprop("/sim/rendering/random-vegetation", 1);
                setprop("/sim/rendering/vegetation-density", 4.0);
              }

              if (val == "Ultra High Density") {
                setprop("/sim/rendering/random-vegetation", 1);
                setprop("/sim/rendering/vegetation-density", 8.0);
              }

            </script>
          </binding>
        </combo>

        <text>
          <row>5</row>
          <col>0</col>
          <halign>left</halign>
          <label>OpenStreetMap Trees</label>
        </text>
        <combo>
          <row>5</row>
          <col>1</col>
          <name>osm2city-trees</name>
          <pref-width>200</pref-width>
          <property>/sim/gui/dialogs/rendering/osm2city-trees</property>
          <value>Disabled</value>
          <value>Enabled</value>
          <binding>
            <command>dialog-apply</command>
            <object-name>osm2city-trees</object-name>
          </binding>
          <binding>
            <command>nasal</command>
            <script>
              var val = getprop("/sim/gui/dialogs/rendering/osm2city-trees");
              if (val == "Enabled") {
                setScenerySuffix("Trees", 1);
              } else {
                setScenerySuffix("Trees", 0);
              }
            </script>
          </binding>
        </combo>



        <text>
          <row>6</row>
          <col>0</col>
          <halign>left</halign>
          <label>Vegetation Shadows</label>
        </text>
        <combo>
          <row>6</row>
          <col>1</col>
          <name>vegetation-shadows</name>
          <pref-width>200</pref-width>
          <property>/sim/gui/dialogs/rendering/vegetation-shadows</property>
          <value>Disabled</value>
          <value>Enabled</value>
          <binding>
            <command>dialog-apply</command>
            <object-name>vegetation-shadows</object-name>
          </binding>
          <binding>
            <command>nasal</command>
            <script>
              var val = getprop("/sim/gui/dialogs/rendering/vegetation-shadows");
              if (val == "Enabled") {
                setprop("/sim/rendering/random-vegetation-shadows", 1);
              } else {
                setprop("/sim/rendering/random-vegetation-shadows", 0);
              }
            </script>
          </binding>
        </combo>

        <text>
          <row>7</row>
          <col>0</col>
          <halign>left</halign>
          <label>Scenery Objects</label>
        </text>

        <combo>
          <row>7</row>
          <col>1</col>
          <name>placed-objects</name>
          <pref-width>200</pref-width>
          <property>/sim/gui/dialogs/rendering/placed-objects</property>
          <value>Disabled</value>
          <value>Enabled</value>
          <binding>
            <command>dialog-apply</command>
            <object-name>placed-objects</object-name>
          </binding>
          <binding>
            <command>nasal</command>
            <script>
              var val = getprop("/sim/gui/dialogs/rendering/placed-objects");
              if (val == "Enabled") {
                setScenerySuffix("Objects", 1);
              } else {
                setScenerySuffix("Objects", 0);
              }
            </script>
          </binding>
        </combo>

        <text>
          <row>8</row>
          <col>0</col>
          <colspan>2</colspan>
          <halign>left</halign>
          <color>
            <red>1.0</red>
            <green>0.6</green>
            <blue>0.6</blue>
          </color>
          <label>Warning: Pylons, Detailed Roads, Buildings use a lot of memory</label>
        </text>

        <text>
          <row>9</row>
          <col>0</col>1
          <colspan>2</colspan>
          <halign>left</halign>
          <color>
            <red>1.0</red>
            <green>0.6</green>
            <blue>0.6</blue>
          </color>
          <label>and disk space, and are only available in limited areas.</label>
        </text>
      </group>

      <group>
        <layout>vbox</layout>
        <stretch>1</stretch>
      </group>

      <group>
        <layout>hbox</layout>
        <text>
          <label>Atmospheric Effects</label>
          <halign>left</halign>
        </text>
        <hrule>
          <stretch>true</stretch>
        </hrule>
      </group>

      <checkbox>
        <halign>left</halign>
        <label>Particles (smoke, dust, spray)</label>
        <name>particles</name>
        <property>/sim/rendering/particles</property>
        <binding>
          <command>dialog-apply</command>
          <object-name>particles</object-name>
        </binding>
      </checkbox>

      <checkbox>
        <halign>left</halign>
        <label>Precipitation</label>
        <name>precipitation</name>
        <property>/sim/rendering/precipitation-gui-enable</property>
        <binding>
          <command>dialog-apply</command>
          <object-name>precipitation</object-name>
        </binding>
      </checkbox>

      <checkbox>
        <halign>left</halign>
        <label>3D clouds</label>
        <name>3d-clouds</name>
        <property>/sim/rendering/clouds3d-enable</property>
        <binding>
          <command>dialog-apply</command>
          <object-name>3d-clouds</object-name>
        </binding>
      </checkbox>

      <group>
        <layout>hbox</layout>
        <halign>right</halign>
        <text>
          <label>Cloud density</label>
          <enable>
            <property>/sim/rendering/clouds3d-enable</property>
          </enable>
        </text>
        <slider>
          <name>cloud-density</name>
          <min>0</min>
          <max>1.0</max>
          <property>/sim/rendering/clouds3d-density</property>
          <binding>
            <command>dialog-apply</command>
            <object-name>cloud-density</object-name>
          </binding>
          <binding>
            <command>property-toggle</command>
            <property>/sim/rendering/clouds3d-enable</property>
          </binding>
          <binding>
            <command>property-toggle</command>
            <property>/sim/rendering/clouds3d-enable</property>
          </binding>
        </slider>
        <text>
          <enable>
            <property>/sim/rendering/clouds3d-enable</property>
          </enable>
          <label>12345678</label>
          <format>%.2f</format>
          <live>true</live>
          <property>/sim/rendering/clouds3d-density</property>
        </text>
      </group>

      <group>
        <layout>hbox</layout>
        <halign>right</halign>
        <text>
          <label>Cloud visibility range</label>
          <enable>
            <property>/sim/rendering/clouds3d-enable</property>
          </enable>
        </text>
        <slider>
          <name>cloud-vis-range</name>
          <min>1000.0</min>
          <max>150000.0</max>
          <property>/sim/rendering/clouds3d-vis-range</property>
          <binding>
            <command>dialog-apply</command>
            <object-name>cloud-vis-range</object-name>
          </binding>
        </slider>
        <text>
          <enable>
            <property>/sim/rendering/clouds3d-enable</property>
          </enable>
          <label>12345678</label>
          <format>%.fm</format>
          <live>true</live>
          <property>/sim/rendering/clouds3d-vis-range</property>
        </text>
      </group>

      <empty>
        <stretch>1</stretch>
      </empty>

    </group>

    <!-- only for a gap -->
    <group>
      <layout>vbox</layout>
      <default-padding>1</default-padding>
      <text>
        <label> </label>
      </text>
    </group>

  </group>

  <hrule/>

  <group>
    <empty>
      <stretch>true</stretch>
    </empty>
    <layout>hbox</layout>

    <button>
      <legend>Back</legend>
      <binding>
        <command>dialog-show</command>
        <dialog-name>rendering</dialog-name>
      </binding>
      <binding>
        <command>dialog-close</command>
      </binding>
    </button>
    <button>
      <legend>Close</legend>
      <default>true</default>
      <key>Esc</key>
      <binding>
        <command>nasal</command>
        <script>
          if (getprop("/sim/rendering/scenery-reload-required")) {
            fgcommand("reinit", props.Node.new({"subsystem": "scenery"}));
          }
          if (getprop("/sim/rendering/compositor-reload-required")) {
            fgcommand("reload-compositor");
          }
        </script>
      </binding>
      <binding>
        <command>dialog-close</command>
      </binding>
    </button>

    <empty>
      <stretch>true</stretch>
    </empty>
  </group>

  <nasal>
    <open>
      <![CDATA[
      setprop("/sim/gui/dialogs/advanced/low-spec-description",
              "The Low Specifications render mode provides low quality visuals " ~
              "with maximum compatibility. This setting is recommended for " ~
              "users with less powerful hardware or integrated video cards.");

      setprop("/sim/gui/dialogs/advanced/als-description",
              "Atmospheric Light Scattering uses a sophisticated physical " ~
              "atmospheric model and several other effects to give realistic " ~
              "rendering of large distances. It is recommended to run this " ~
              "configuration on relatively powerful hardware.");

      # Render Mode
      if (getprop("/sim/rendering/shaders/skydome")) {
          setprop("/sim/gui/dialogs/advanced/mode/low-spec-mode", 0);
          setprop("/sim/gui/dialogs/advanced/mode/als-mode", 1);
      } else {
          setprop("/sim/gui/dialogs/advanced/mode/low-spec-mode", 1);
          setprop("/sim/gui/dialogs/advanced/mode/als-mode", 0);
      }

      # ALS Shader Settings

      var landmass_val = getprop("/sim/rendering/shaders/landmass");
      if (landmass_val <= 3) {
          setprop("/sim/gui/dialogs/advanced/terrain-quality", "Low");
      } else if (landmass_val <= 4) {
          setprop("/sim/gui/dialogs/advanced/terrain-quality", "Medium");
      } else if (landmass_val <= 5) {
          setprop("/sim/gui/dialogs/advanced/terrain-quality", "High");
      } else {
          setprop("/sim/gui/dialogs/advanced/terrain-quality", "Ultra");
      }

      var model_val = getprop("/sim/rendering/shaders/model");
      if (model_val < 1) {
          setprop("/sim/gui/dialogs/advanced/model-effects", "Disabled");
      } else {
          setprop("/sim/gui/dialogs/advanced/model-effects", "Enabled");
      }

      var water_val = getprop("/sim/rendering/shaders/water");
      if (water_val <= 3) {
          setprop("/sim/gui/dialogs/advanced/water-effects", "Disabled");
      } else if (water_val <= 4) {
          setprop("/sim/gui/dialogs/advanced/water-effects", "Low");
      } else {
          setprop("/sim/gui/dialogs/advanced/water-effects", "High");
      }

      var clouds_val = getprop("/sim/rendering/shaders/clouds");
      if (clouds_val < 1) {
          setprop("/sim/gui/dialogs/advanced/clouds", "Low");
      } else {
          setprop("/sim/gui/dialogs/advanced/clouds", "High");
      }

      var wind_val = getprop("/sim/rendering/shaders/wind-effects");
      if (wind_val < 1) {
          setprop("/sim/gui/dialogs/advanced/wind-effects", "Disabled");
      } else {
          setprop("/sim/gui/dialogs/advanced/wind-effects", "Enabled");
      }

      var overlay_val = getprop("/sim/rendering/shaders/vegetation-effects");
      if (overlay_val < 1) {
          setprop("/sim/gui/dialogs/advanced/overlay", "Disabled");
      } else {
          setprop("/sim/gui/dialogs/advanced/overlay", "Enabled");
      }

      # Shadows
      if (getprop("/sim/rendering/shadows/enabled")) {
          var size = getprop("/sim/rendering/shadows/sun-atlas-size");
          if (size <= 1024) {
              setprop("/sim/gui/dialogs/advanced/shadows", "Low");
          } else if (size <= 2048) {
              setprop("/sim/gui/dialogs/advanced/shadows", "Medium");
          } else if (size <= 4096) {
              setprop("/sim/gui/dialogs/advanced/shadows", "High");
          } else {
              setprop("/sim/gui/dialogs/advanced/shadows", "Ultra");
          }
      } else {
          setprop("/sim/gui/dialogs/advanced/shadows", "Disabled");
      }

      # Lights
      setprop("/sim/gui/dialogs/advanced/limit-lights",
        (getprop("/sim/rendering/dynamic-lighting/max-pointlights") < 1024) or (getprop("/sim/rendering/dynamic-lighting/max-spotlights") < 1024));


      var getScenerySuffix = func(layer) {
          var suffixes = props.globals.getNode("/sim/rendering", 1).getChildren("scenery-path-suffix");
          #printf("Looking for suffix " ~ layer);

          foreach (var p; suffixes) {
              #printf("Checking suffix " ~ p.getNode("name",1).getValue());
              #printf("Checking suffix enabled " ~ p.getNode("enabled",1).getValue());
              if (p.getNode("name",1).getValue() == layer) {
                  #printf("Found layer " ~ layer ~ " value: " ~ p.getNode("enabled", 1).getValue() ~ " " ~ p.getNode("enabled", 1).getBoolValue());
                  return p.getNode("enabled", 1).getBoolValue();
              }
          }

          return 0;
      }

      var setScenerySuffix = func(layer, enable) {
          var suffixes = props.globals.getNode("/sim/rendering", 1).getChildren("scenery-path-suffix");
          #printf("Setting scenery suffix" ~ layer ~ " to " ~ enable);

          foreach (var p; suffixes) {
              if (p.getNode("name",1).getValue() == layer) {
                  #printf("Matched scenery suffix" ~ layer ~ " to " ~ enable);
                  p.getNode("enabled", 1).setBoolValue(enable);
              }
          }
      }

      # Mapping from underlying properties to those used by the GUI.

      if (getScenerySuffix("Details")) {
          setprop("/sim/gui/dialogs/rendering/pylons", "Detailed");
      } else if (getScenerySuffix("Pylons")) {
          setprop("/sim/gui/dialogs/rendering/pylons", "Basic");
      } else {
          setprop("/sim/gui/dialogs/rendering/pylons", "Disabled");
      }

      if (getScenerySuffix("Roads")) {
          setprop("/sim/gui/dialogs/rendering/roads", "Enabled");
      } else {
          setprop("/sim/gui/dialogs/rendering/roads", "Disabled");
      }

      if (getScenerySuffix("Buildings")) {
          setprop("/sim/gui/dialogs/rendering/buildings", "OpenStreetMap Data");
      } else if (getprop("/sim/rendering/random-buildings")) {
          setprop("/sim/gui/dialogs/rendering/buildings", "Randomly Generated");
      } else {
          setprop("/sim/gui/dialogs/rendering/buildings", "Disabled");
      }

      if (getprop("/sim/rendering/random-objects")) {
          setprop("/sim/gui/dialogs/rendering/random-objects", "Enabled");
      } else {
          setprop("/sim/gui/dialogs/rendering/random-objects", "Disabled");
      }

      if (getprop("/sim/rendering/random-vegetation")) {
          var density = getprop("/sim/rendering/vegetation-density");
          if (density < 0.2) {
              setprop("/sim/gui/dialogs/rendering/random-vegetation", "Ultra Low Density");
              # 0.1
          } else if (density < 0.4) {
              setprop("/sim/gui/dialogs/rendering/random-vegetation", "Very Low Density");
              # 0.25
          } else if (density < 0.8) {
              setprop("/sim/gui/dialogs/rendering/random-vegetation", "Low Density");
              # 0.5
          } else if (density < 1.5) {
              setprop("/sim/gui/dialogs/rendering/random-vegetation", "Medium Density");
              # 1.0
          } else if (density < 3.0) {
              setprop("/sim/gui/dialogs/rendering/random-vegetation", "High Density");
              # 2.0
          } else if (density < 6.0) {
              setprop("/sim/gui/dialogs/rendering/random-vegetation", "Very High Density");
              # 4.0
          } else {
              setprop("/sim/gui/dialogs/rendering/random-vegetation", "Ultra High Density");
              # 8.0
          }
      } else {
          setprop("/sim/gui/dialogs/rendering/random-vegetation", "Disabled");
      }

      if (getScenerySuffix("Trees")) {
          setprop("/sim/gui/dialogs/rendering/osm2city-trees", "Enabled");
      } else {
          setprop("/sim/gui/dialogs/rendering/osm2city-trees", "Disabled");
      }

      if (getprop("/sim/rendering/random-vegetation-shadows")) {
          setprop("/sim/gui/dialogs/rendering/vegetation-shadows", "Enabled");
      } else {
          setprop("/sim/gui/dialogs/rendering/vegetation-shadows", "Disabled");
      }

      if (getScenerySuffix("Objects")) {
          setprop("/sim/gui/dialogs/rendering/placed-objects", "Enabled");
      } else {
          setprop("/sim/gui/dialogs/rendering/placed-objects", "Disabled");
      }
      ]]>
    </open>
  </nasal>

</PropertyList>