fgdata/Compositor/Effects/transition.eff

<?xml version='1.0' encoding='UTF-8'?>
<!-- Transition effect  starting from the base texture of the scenery, and changing textures according to slope in one or two steps.

parameters :
    texture[0] -> base texture from the scenery
    texture[2] -> intermediate texture if transitions is set to 2
    texture[3] -> texture you want to transition to
    texture[4] -> snow texture you want applied above snow-limit (I recommend using the corespondent winter texture for the base texture that you can find in terrain.winter)

   transitions -> transitions number can be set to 1 or 2 (if set to 2 will allow for an intermediate step)
       inverse -> if this is set to 1 will keep the base texture on steep slopes and transition to the texture you want (useful to add some grass patches in rocky areas)
-->
<PropertyList>
  <name>Effects/transition</name>
  <inherits-from>Effects/terrain-default</inherits-from>
  <parameters>
    <texture n="2">
      <image>Textures/Terrain/transition1.dds</image>
      <type>2d</type>
      <filter>linear-mipmap-linear</filter>
      <wrap-s>repeat</wrap-s>
      <wrap-t>repeat</wrap-t>
      <internal-format>normalized</internal-format>
    </texture>
    <texture n="3">
      <image>Textures/Terrain/transition2.dds</image>
      <type>2d</type>
      <filter>linear-mipmap-linear</filter>
      <wrap-s>repeat</wrap-s>
      <wrap-t>repeat</wrap-t>
      <internal-format>normalized</internal-format>
    </texture>
    <texture n="4">
      <image>Textures/Terrain/snow3.dds</image>
      <type>2d</type>
      <filter>linear-mipmap-linear</filter>
      <wrap-s>repeat</wrap-s>
      <wrap-t>repeat</wrap-t>
      <internal-format>normalized</internal-format>
    </texture>
    <rain-norm>
      <use>/environment/rain-norm</use>
    </rain-norm>
    <snow-level>
      <use>/environment/snow-level-m</use>
    </snow-level>
    <cloud-cover0>
      <use>/environment/clouds/layer[0]/coverage-type</use>
    </cloud-cover0>
    <cloud-cover1>
      <use>/environment/clouds/layer[1]/coverage-type</use>
    </cloud-cover1>
    <cloud-cover2>
      <use>/environment/clouds/layer[2]/coverage-type</use>
    </cloud-cover2>
    <cloud-cover3>
      <use>/environment/clouds/layer[3]/coverage-type</use>
    </cloud-cover3>
    <cloud-cover4>
      <use>/environment/clouds/layer[4]/coverage-type</use>
    </cloud-cover4>
    <transitions type="float">2.0</transitions>
    <inverse type="float">0.0</inverse>
    <!-- 	fog include -->
    <visibility>
      <use>/environment/ground-visibility-m</use>
    </visibility>
    <avisibility>
      <use>/environment/visibility-m</use>
    </avisibility>
    <lthickness>
      <use>/environment/ground-haze-thickness-m</use>
    </lthickness>
    <scattering>
      <use>/rendering/scene/scattering</use>
    </scattering>
    <terminator>
      <use>/environment/terminator-relative-position-m</use>
    </terminator>
    <fogtype>
      <use>/sim/rendering/shaders/skydome</use>
    </fogtype>
    <!-- 	END fog include -->
  </parameters>
  <!--<generate>
	<tangent type="int">6</tangent>
	<binormal type="int">7</binormal>
    </generate>-->
  <technique n="7">
    <predicate>
      <and>
        <property>/sim/rendering/shaders/quality-level</property>
        <property>/sim/rendering/shaders/transition</property>
        <equal>
          <value type="float">0.0</value>
          <float-property>/sim/rendering/rembrandt/enabled</float-property>
        </equal>
        <or>
          <less-equal>
            <value type="float">2.0</value>
            <glversion/>
          </less-equal>
          <and>
            <extension-supported>GL_ARB_shader_objects</extension-supported>
            <extension-supported>GL_ARB_shading_language_100</extension-supported>
            <extension-supported>GL_ARB_vertex_shader</extension-supported>
            <extension-supported>GL_ARB_fragment_shader</extension-supported>
          </and>
        </or>
      </and>
    </predicate>
    <pass>
      <lighting>true</lighting>
      <!-- Use material values that are either inherited from the
	    terrain-default effect or supplied by an effect derived
	    from this one e.g., one created in the materials library. -->
      <material>
        <ambient>
          <use>material/ambient</use>
        </ambient>
        <diffuse>
          <use>material/diffuse</use>
        </diffuse>
        <specular>
          <use>material/specular</use>
        </specular>
        <color-mode>ambient-and-diffuse</color-mode>
      </material>
      <blend>
        <use>transparent</use>
      </blend>
      <alpha-test>
        <use>transparent</use>
      </alpha-test>
      <shade-model>smooth</shade-model>
      <cull-face>back</cull-face>
      <render-bin>
        <bin-number>
          <use>render-bin/bin-number</use>
        </bin-number>
        <bin-name>
          <use>render-bin/bin-name</use>
        </bin-name>
      </render-bin>
      <texture-unit>
        <unit>0</unit>
        <type>
          <use>texture[0]/type</use>
        </type>
        <image>
          <use>texture[0]/image</use>
        </image>
        <filter>
          <use>texture[0]/filter</use>
        </filter>
        <wrap-s>
          <use>texture[0]/wrap-s</use>
        </wrap-s>
        <wrap-t>
          <use>texture[0]/wrap-t</use>
        </wrap-t>
        <internal-format>
          <use>texture[0]/internal-format</use>
        </internal-format>
      </texture-unit>
      <texture-unit>
        <unit>1</unit>
        <type>
          <use>texture[2]/type</use>
        </type>
        <image>
          <use>texture[2]/image</use>
        </image>
        <filter>
          <use>texture[2]/filter</use>
        </filter>
        <wrap-s>
          <use>texture[2]/wrap-s</use>
        </wrap-s>
        <wrap-t>
          <use>texture[2]/wrap-t</use>
        </wrap-t>
        <internal-format>
          <use>texture[2]/internal-format</use>
        </internal-format>
      </texture-unit>
      <texture-unit>
        <unit>2</unit>
        <type>
          <use>texture[3]/type</use>
        </type>
        <image>
          <use>texture[3]/image</use>
        </image>
        <filter>
          <use>texture[3]/filter</use>
        </filter>
        <wrap-s>
          <use>texture[3]/wrap-s</use>
        </wrap-s>
        <wrap-t>
          <use>texture[3]/wrap-t</use>
        </wrap-t>
        <internal-format>
          <use>texture[3]/internal-format</use>
        </internal-format>
      </texture-unit>
      <texture-unit>
        <unit>3</unit>
        <type>
          <use>texture[4]/type</use>
        </type>
        <image>
          <use>texture[4]/image</use>
        </image>
        <filter>
          <use>texture[4]/filter</use>
        </filter>
        <wrap-s>
          <use>texture[4]/wrap-s</use>
        </wrap-s>
        <wrap-t>
          <use>texture[4]/wrap-t</use>
        </wrap-t>
        <internal-format>
          <use>texture[4]/internal-format</use>
        </internal-format>
      </texture-unit>
      <texture-unit>
        <unit>4</unit>
        <type>noise</type>
      </texture-unit>
      <program>
        <!-- 				<vertex-shader>Shaders/Default/include_fog.vert</vertex-shader> -->
        <vertex-shader n="1">Shaders/Default/transition.vert</vertex-shader>
        <fragment-shader n="0">Shaders/Default/include_fog.frag</fragment-shader>
        <fragment-shader n="1">Shaders/Default/transition.frag</fragment-shader>
      </program>
      <uniform>
        <name>BaseTex</name>
        <type>sampler-2d</type>
        <value type="int">0</value>
      </uniform>
      <uniform>
        <name>SecondTex</name>
        <type>sampler-2d</type>
        <value type="int">1</value>
      </uniform>
      <uniform>
        <name>ThirdTex</name>
        <type>sampler-2d</type>
        <value type="int">2</value>
      </uniform>
      <uniform>
        <name>SnowTex</name>
        <type>sampler-2d</type>
        <value type="int">3</value>
      </uniform>
      <uniform>
        <name>NoiseTex</name>
        <type>sampler-3d</type>
        <value type="int">4</value>
      </uniform>
      <uniform>
        <name>RainNorm</name>
        <type>float</type>
        <value>
          <use>rain-norm</use>
        </value>
      </uniform>
      <uniform>
        <name>SnowLevel</name>
        <type>float</type>
        <value>
          <use>snow-level</use>
        </value>
      </uniform>
      <uniform>
        <name>Transitions</name>
        <type>float</type>
        <value>
          <use>transitions</use>
        </value>
      </uniform>
      <uniform>
        <name>InverseSlope</name>
        <type>float</type>
        <value>
          <use>inverse</use>
        </value>
      </uniform>
      <uniform>
        <name>CloudCover0</name>
        <type>float</type>
        <value>
          <use>cloud-cover0</use>
        </value>
      </uniform>
      <uniform>
        <name>CloudCover1</name>
        <type>float</type>
        <value>
          <use>cloud-cover1</use>
        </value>
      </uniform>
      <uniform>
        <name>CloudCover2</name>
        <type>float</type>
        <value>
          <use>cloud-cover2</use>
        </value>
      </uniform>
      <uniform>
        <name>CloudCover3</name>
        <type>float</type>
        <value>
          <use>cloud-cover3</use>
        </value>
      </uniform>
      <uniform>
        <name>CloudCover4</name>
        <type>float</type>
        <value>
          <use>cloud-cover4</use>
        </value>
      </uniform>
      <!-- 	    BEGIN fog include -->
      <uniform>
        <name>visibility</name>
        <type>float</type>
        <value>
          <use>visibility</use>
        </value>
      </uniform>
      <uniform>
        <name>avisibility</name>
        <type>float</type>
        <value>
          <use>avisibility</use>
        </value>
      </uniform>
      <uniform>
        <name>hazeLayerAltitude</name>
        <type>float</type>
        <value>
          <use>lthickness</use>
        </value>
      </uniform>
      <uniform>
        <name>scattering</name>
        <type>float</type>
        <value>
          <use>scattering</use>
        </value>
      </uniform>
      <uniform>
        <name>terminator</name>
        <type>float</type>
        <value>
          <use>terminator</use>
        </value>
      </uniform>
      <uniform>
        <name>fogType</name>
        <type>int</type>
        <value>
          <use>fogtype</use>
        </value>
      </uniform>
      <!-- 			END fog include -->
    </pass>
  </technique>
</PropertyList>