Merge branch 'next' into canvas-livery

AI/Aircraft/fallback_models.xml

@@ -16,14 +16,18 @@
   0       Default.  Will also be used if an AI model is not found
   1-50   Single engine GA aircraft
   51-100 Multi-engine GA aircraft
-  101-150 Turboprop airliners
+  101-150 Business Jets
-  151-200 Twin engined narrow body jet airliners
+  151-200 Turboprop airliners
-  201-250 Twin engined wide body jet airliners
+  201-250 Twin engined narrow body jet airliners
-  251-300 Four engined jet airliners
+  251-300 Twin engined wide body jet airliners
-  301-350 Military combat aircraft
+  301-350 Four engined jet narrow body airliners
-  351-400 Military non-combat aircraft (tankers, transports)
+  351-400 Four engined jet wide body airliners
-  401-500 ????
+  401-450 Single engine prop military aircraft
-
+  451-500 Multi-engine prop military aircraft
+  501-550 Jet combat aircraft
+  551-600 Military large aircraft (tankers, transports)
+  601-700 Helicopters
+  701-800 Other
 -->
 <PropertyList>
 
@@ -172,4 +176,9 @@
 <model n="710" type="string">AI/Aircraft/G-164/Models/G-164A-ai.xml</model>
 <model n="711" type="string">AI/Aircraft/Gee-Bee/Models/geebee-ai.xml</model>
 
+<!-- Special case as the ufo is always installed and light enough not to need a separate
+AI model.  We also want to load it in preference to the default glider because it will
+then be invisible to other MP players who are not in a UFO themselves. -->
+<model n="712" type="string">Aircraft/ufo/Models/ufo.xml</model>
+
 </PropertyList>

Aircraft/Generic/Pilot/Airliner/pilot.xml

@@ -68,7 +68,10 @@
 		<condition>
 			<and>
 				<not>
-					 <property>/sim/current-view/internal</property>
+					<or>
+					 	<property>/sim/current-view/internal</property>
+					 	<property>/sim/walker/outside</property>
+					</or>
 				</not>
 				<property>/sim/rendering/pilot-model/enabled</property>
 			</and>

Aircraft/Generic/Pilot/Fighter/pilot.xml

@@ -61,7 +61,10 @@
 		<condition>
 			<and>
 				<not>
-					 <property>/sim/current-view/internal</property>
+					<or>
+					 	<property>/sim/current-view/internal</property>
+					 	<property>/sim/walker/outside</property>
+					</or>
 				</not>
 				<property>/sim/rendering/pilot-model/enabled</property>
 			</and>

Aircraft/Generic/Pilot/General/pilot.xml

@@ -68,7 +68,10 @@
 		<condition>
 			<and>
 				<not>
-					 <property>/sim/current-view/internal</property>
+					<or>
+					 	<property>/sim/current-view/internal</property>
+					 	<property>/sim/walker/outside</property>
+					</or>
 				</not>
 				<property>/sim/rendering/pilot-model/enabled</property>
 			</and>

Aircraft/Generic/Pilot/WWI/pilot.xml

@@ -68,7 +68,10 @@
 		<condition>
 			<and>
 				<not>
-					 <property>/sim/current-view/internal</property>
+					<or>
+					 	<property>/sim/current-view/internal</property>
+					 	<property>/sim/walker/outside</property>
+					</or>
 				</not>
 				<property>/sim/rendering/pilot-model/enabled</property>
 			</and>

Aircraft/Generic/Pilot/WWII/pilot.xml

@@ -68,7 +68,10 @@
 		<condition>
 			<and>
 				<not>
-					 <property>/sim/current-view/internal</property>
+					<or>
+					 	<property>/sim/current-view/internal</property>
+					 	<property>/sim/walker/outside</property>
+					</or>
 				</not>
 				<property>/sim/rendering/pilot-model/enabled</property>
 			</and>

Aircraft/ufo/ufo-set.xml

@@ -78,7 +78,7 @@
                 <position-z-m type="float">0</position-z-m>
                 <jetway-hood-deg type="float">3</jetway-hood-deg>
             </door>
-
+			<fallback-model-index>712</fallback-model-index>
 		</model>
 
 		<instrumentation>

Docs/FlightGear-FAQ.html

@@ -840,7 +840,7 @@
           <p>Yes, though it can be a difficult task.  FlightGear's scenery
           generation is handled by a sister project, TerraGear.  For more
           details, see
-          <a href="http://terragear.org/">http://terragear.org/</a>.</p>
+          <a href="http://wiki.flightgear.org/TerraGear">http://wiki.flightgear.org/TerraGear</a>.</p>
         </div>
       
 

Docs/README.scenery

@@ -19,6 +19,7 @@ Contents ----------------------------------------------------------------------
    3.7  ROAD_ROUGH / ROAD_DETAILED
    3.8  RAILWAY_ROUGH / RAILWAY_DETAILED
    3.9  BUILDING_LIST
+   3.10 TREE_LIST
 
 4  model manager ("/models/model")
    4.1  static objects
@@ -193,9 +194,9 @@ is always the same and described in section 3.3.
 ----------------
 
 specifies the terrain elevation data file. These files are generated with
-the TerraGear tools (http://www.terragear.org/) and have file extension
+the TerraGear tools (http://wiki.flightgear.org/TerraGear) and have file
-".btg" ("binary terragear"; there used to be an "*.atg" file, too, where
+extension ".btg" ("binary terragear"; there used to be an "*.atg" file, too,
-the 'a' stood for ASCII).
+where the 'a' stood for ASCII).
 
 Example:
 
@@ -280,8 +281,8 @@ this is an expensive operation and is strongly discouraged.
 ---------------------------------
 
 defines taxiway or runway sign. The syntax is much like that of OBJECT_SHARED
-entries, except that the path is replaced with a sign contents specification
+entries, except that the <object-path> is replaced with a sign contents specification
-and that there is an additional size value at the end of the line.
+and that <radius> is replaced with a size value at the end of the line.
 
 Example:
 
@@ -392,7 +393,7 @@ gradually fade in
 3.7  ROAD_ROUGH / ROAD_DETAILED
 -------------------------------
 
-Identical to BUILDING_ROUGH / BIULDING_DETAILED above, except used for roads.
+Identical to BUILDING_ROUGH / BUILDING_DETAILED above, except used for roads.
 the material definition "OSM_Road" is applied.
 
 3.8  RAILWAY_ROUGH / RAILWAY_DETAILED
@@ -463,7 +464,7 @@ For example, the following entries generates 3 small, 2 medium and 2 large build
 0 400 0 0 1
 0 500 0 0 2
 
-3.9  TREE_LIST
+3.10  TREE_LIST
 ------------------
 
 Defines a file containing tree coordinates that should be rendered using
@@ -485,7 +486,7 @@ Where:
   the point at which the material definition will be evaluated (for regional
   materials).
 
-See README.materials for details on configuring the random building parameters.
+See README.materials for details on configuring the random vegetation parameters.
 
 The referenced <filename> (in the example trees.txt.gz) contains lines of the form
 

Effects/agriculture.eff

@@ -153,6 +153,10 @@
     <predicate>
       <and>
         <property>/sim/rendering/shaders/skydome</property>
+        <equal>
+          <value type="float">0.0</value>
+          <float-property>/sim/rendering/photoscenery/enabled</float-property>
+        </equal>
         <and>
           <less-equal>
             <value type="float">6.0</value>
@@ -162,7 +166,7 @@
             <value type="float">6.0</value>
             <float-property>/sim/rendering/shaders/transition</float-property>
           </less-equal>
-		  <less-equal>
+          <less-equal>
             <value type="float">1.0</value>
             <float-property>/sim/rendering/shaders/crop</float-property>
           </less-equal>

Effects/airfield.eff

@@ -147,6 +147,10 @@
         <fragment-shader>Shaders/secondary_lights.frag</fragment-shader>
         <fragment-shader>Shaders/filters-ALS.frag</fragment-shader>
         <fragment-shader>Shaders/shadows-include.frag</fragment-shader>
+        <attribute>
+          <name>orthophotoTexCoord</name>
+          <index>14</index>
+        </attribute>
       </program>
       <uniform>
         <name>visibility</name>
@@ -621,6 +625,11 @@
         <type>int</type>
         <value>2</value> <!-- AMBIENT_AND_DIFFUSE -->
       </uniform>
+      <uniform>
+        <name>orthophotoTexture</name>
+        <type>sampler-2d</type>
+        <value type="int">15</value>
+      </uniform>
       <!-- BEGIN shadows include -->
       <uniform>
         <name>shadow_tex</name>

Effects/crop.eff

@@ -23,8 +23,12 @@
   <technique n="9">
     <predicate>
       <and>
-	    <property>/sim/rendering/shaders/quality-level</property>
+        <property>/sim/rendering/shaders/quality-level</property>
         <property>/sim/rendering/shaders/crop</property>
+        <equal>
+          <value type="float">0.0</value>
+          <float-property>/sim/rendering/photoscenery/enabled</float-property>
+        </equal>
         <or>
           <less-equal>
             <value type="float">2.0</value>

Effects/forest.eff

@@ -73,8 +73,12 @@
   <technique n="9">
     <predicate>
       <and>
-		<property>/sim/rendering/shaders/quality-level</property>
+        <property>/sim/rendering/shaders/quality-level</property>
-		<property>/sim/rendering/shaders/transition</property>
+        <property>/sim/rendering/shaders/transition</property>
+        <equal>
+          <value type="float">0.0</value>
+          <float-property>/sim/rendering/photoscenery/enabled</float-property>
+        </equal>
         <or>
           <less-equal>
             <value type="float">2.0</value>

Effects/grass.eff

@@ -140,6 +140,10 @@
 	<fragment-shader>Shaders/secondary_lights.frag</fragment-shader>
         <fragment-shader>Shaders/filters-ALS.frag</fragment-shader>
         <fragment-shader>Shaders/shadows-include.frag</fragment-shader>
+        <attribute>
+          <name>orthophotoTexCoord</name>
+          <index>14</index>
+        </attribute>
       </program>
       <uniform>
         <name>visibility</name>
@@ -614,6 +618,11 @@
         <type>int</type>
         <value>2</value> <!-- AMBIENT_AND_DIFFUSE -->
       </uniform>
+      <uniform>
+        <name>orthophotoTexture</name>
+        <type>sampler-2d</type>
+        <value type="int">15</value>
+      </uniform>
       <!-- BEGIN shadows include -->
       <uniform>
         <name>shadow_tex</name>

Effects/landmass.eff

@@ -50,6 +50,10 @@
 			<and>
 				<property>/sim/rendering/shaders/quality-level</property>
 				<property>/sim/rendering/shaders/landmass</property>
+				<equal>
+					<value type="float">0.0</value>
+					<float-property>/sim/rendering/photoscenery/enabled</float-property>
+				</equal>
 				<less-equal>
 					<value type="float">4.0</value>
 					<float-property>/sim/rendering/shaders/landmass</float-property>
@@ -384,6 +388,10 @@
 			<and>
 				<property>/sim/rendering/shaders/quality-level</property>
 				<property>/sim/rendering/shaders/landmass</property>
+				<equal>
+					<value type="float">0.0</value>
+					<float-property>/sim/rendering/photoscenery/enabled</float-property>
+				</equal>
 				<or>
 					<less-equal>
 						<value type="float">2.0</value>

Effects/terrain-default.eff

@@ -330,6 +330,10 @@
         <fragment-shader>Shaders/secondary_lights.frag</fragment-shader>
         <fragment-shader>Shaders/filters-ALS.frag</fragment-shader>
         <fragment-shader>Shaders/shadows-include.frag</fragment-shader>
+        <attribute>
+          <name>orthophotoTexCoord</name>
+          <index>14</index>
+        </attribute>
       </program>
 	  <uniform>
         <name>grain_strength</name>
@@ -835,6 +839,11 @@
         <value>2</value>
         <!-- AMBIENT_AND_DIFFUSE -->
       </uniform>
+      <uniform>
+        <name>orthophotoTexture</name>
+        <type>sampler-2d</type>
+        <value type="int">15</value>
+      </uniform>
       <!-- BEGIN shadows include -->
       <uniform>
         <name>shadow_tex</name>
@@ -973,6 +982,10 @@
         <fragment-shader>Shaders/hazes.frag</fragment-shader>
         <fragment-shader>Shaders/filters-ALS.frag</fragment-shader>
         <fragment-shader>Shaders/shadows-include.frag</fragment-shader>
+        <attribute>
+          <name>orthophotoTexCoord</name>
+          <index>14</index>
+        </attribute>
       </program>
       <uniform>
         <name>visibility</name>
@@ -1161,6 +1174,11 @@
         <value>2</value>
         <!-- AMBIENT_AND_DIFFUSE -->
       </uniform>
+      <uniform>
+        <name>orthophotoTexture</name>
+        <type>sampler-2d</type>
+        <value type="int">15</value>
+      </uniform>
       <!-- BEGIN shadows include -->
       <uniform>
         <name>shadow_tex</name>
@@ -1279,9 +1297,13 @@
         <vertex-shader>Shaders/shadows-include.vert</vertex-shader>
         <fragment-shader>Shaders/terrain-ALS-base.frag</fragment-shader>
         <fragment-shader>Shaders/hazes.frag</fragment-shader>
-	<fragment-shader>Shaders/noise.frag</fragment-shader>
+        <fragment-shader>Shaders/noise.frag</fragment-shader>
-	<fragment-shader>Shaders/filters-ALS.frag</fragment-shader>
+        <fragment-shader>Shaders/filters-ALS.frag</fragment-shader>
-    <fragment-shader>Shaders/shadows-include.frag</fragment-shader>
+        <fragment-shader>Shaders/shadows-include.frag</fragment-shader>
+        <attribute>
+          <name>orthophotoTexCoord</name>
+          <index>14</index>
+        </attribute>
       </program>
       <uniform>
         <name>visibility</name>
@@ -1405,6 +1427,11 @@
         <value>2</value>
         <!-- AMBIENT_AND_DIFFUSE -->
       </uniform>
+      <uniform>
+        <name>orthophotoTexture</name>
+        <type>sampler-2d</type>
+        <value type="int">15</value>
+      </uniform>
       <!-- BEGIN shadows include -->
       <uniform>
         <name>shadow_tex</name>
@@ -1436,8 +1463,13 @@
   <technique n="11">
     <predicate>
       <and>
-		<property>/sim/rendering/shaders/quality-level</property>
+        <or>
-        <property>/sim/rendering/shaders/generic</property>
+          <property>/sim/rendering/photoscenery/enabled</property>
+          <and>
+            <property>/sim/rendering/shaders/quality-level</property>
+            <property>/sim/rendering/shaders/generic</property>
+          </and>
+        </or>
         <or>
           <less-equal>
             <value type="float">2.0</value>
@@ -1529,6 +1561,10 @@
         <fragment-shader>Shaders/default.frag</fragment-shader>
         <fragment-shader>Shaders/include_fog.frag</fragment-shader>
         <fragment-shader>Shaders/shadows-include.frag</fragment-shader>
+        <attribute>
+          <name>orthophotoTexCoord</name>
+          <index>14</index>
+        </attribute>
       </program>
       <uniform>
         <name>visibility</name>
@@ -1571,6 +1607,11 @@
         <value>2</value>
         <!-- AMBIENT_AND_DIFFUSE -->
       </uniform>
+      <uniform>
+        <name>orthophotoTexture</name>
+        <type>sampler-2d</type>
+        <value type="int">15</value>
+      </uniform>
       <!-- BEGIN shadows include -->
       <uniform>
         <name>shadow_tex</name>

Effects/terrain-overlay.eff

@@ -160,6 +160,10 @@
         <fragment-shader>Shaders/secondary_lights.frag</fragment-shader>
         <fragment-shader>Shaders/filters-ALS.frag</fragment-shader>
         <fragment-shader>Shaders/shadows-include.frag</fragment-shader>
+        <attribute>
+          <name>orthophotoTexCoord</name>
+          <index>14</index>
+        </attribute>
       </program>
 	  <uniform>
         <name>grain_strength</name>
@@ -665,6 +669,11 @@
         <value>2</value>
         <!-- AMBIENT_AND_DIFFUSE -->
       </uniform>
+      <uniform>
+        <name>orthophotoTexture</name>
+        <type>sampler-2d</type>
+        <value type="int">15</value>
+      </uniform>
       <!-- BEGIN shadows include -->
       <uniform>
         <name>shadow_tex</name>

Effects/urban.eff

@@ -54,6 +54,10 @@
 			<and>
 				<property>/sim/rendering/shaders/skydome</property>
 				<property>/sim/rendering/shaders/urban</property>
+				<equal>
+					<value type="float">0.0</value>
+					<float-property>/sim/rendering/photoscenery/enabled</float-property>
+				</equal>
 				<less-equal>
 					<value type="float">4.0</value>
 					<float-property>/sim/rendering/shaders/urban</float-property>
@@ -780,6 +784,10 @@
 			<and>
 				<property>/sim/rendering/shaders/skydome</property>
 				<property>/sim/rendering/shaders/urban</property>
+				<equal>
+					<value type="float">0.0</value>
+					<float-property>/sim/rendering/photoscenery/enabled</float-property>
+				</equal>
 				<less-equal>
 					<value type="float">1.0</value>
 					<float-property>/sim/rendering/shaders/urban</float-property>
@@ -1460,6 +1468,10 @@
 			<and>
 				<property>/sim/rendering/shaders/quality-level</property>
 				<property>/sim/rendering/shaders/urban</property>
+				<equal>
+					<value type="float">0.0</value>
+					<float-property>/sim/rendering/photoscenery/enabled</float-property>
+				</equal>
 				<less-equal>
 					<value type="float">4.0</value>
 					<float-property>/sim/rendering/shaders/urban</float-property>
@@ -1748,6 +1760,10 @@
 			<and>
 				<property>/sim/rendering/shaders/quality-level</property>
 				<property>/sim/rendering/shaders/urban</property>
+				<equal>
+					<value type="float">0.0</value>
+					<float-property>/sim/rendering/photoscenery/enabled</float-property>
+				</equal>
 				<less-equal>
 					<value type="float">1.0</value>
 					<float-property>/sim/rendering/shaders/urban</float-property>

Effects/ws30.eff

@@ -409,7 +409,6 @@
   <technique n="5">
     <predicate>
       <and>
-        <property>/sim/rendering/shaders/skydome</property>
         <or>
           <less-equal>
             <value type="float">2.0</value>

Nasal/controls.nas

@@ -558,6 +558,13 @@ var applyApplicableBrakes = func(v, which = 0)  {
     }
 }
 
+var autopilotDisconnect = func() {
+    var aps = props.getNode("/controls/autoflight").getChildren("autopilot");
+    foreach (var ap; aps) {
+        ap.getChild("engage").setBoolValue(0);
+    }
+}
+
 # 1: Deploy, -1: Release
 var deployChute = func(v) setprop("/controls/flight/drag-chute", v);
 

Nasal/joystick.nas

@@ -418,7 +418,7 @@ var PropertyToggleButton = {
 
     var c = prop.getNode("binding", 1).getNode("command", 1).getValue();
     var p = prop.getNode("binding", 1).getNode("property", 1).getValue();
-    return ((c == "property-toggle") and (p == me.prop));
+    return ((c == "property-toggle") and (p == me.binding));
   },
 
   getBinding: func(button) {
@@ -566,6 +566,7 @@ var buttonBindings = [
   NasalHoldButton.new("Brakes (air/wheel)", "controls.applyApplicableBrakes(1);", "controls.applyApplicableBrakes(0);"),
   NasalHoldButton.new("Parking brakes", "controls.parkingBrakeToggle(0);", "controls.parkingBrakeToggle(1);"),
   NasalHoldButton.new("NWS toggle", "controls.toggleNWS(0);", "controls.toggleNWS(1);"),
+  NasalButton.new("Autopilot disconnect", "controls.autopilotDisconnect();",0),
 
   PropertyToggleButton.new("Total Freeze", "/sim/freeze/clock"),
 

Nasal/local_weather/weather_tile_management.nas

@@ -1484,22 +1484,22 @@ foreach(s; cloudShadowArray)
 	}
 	
 	# now write out the closest cloud for the detail effects
+	if (index_min != -1) {
+	    var s = cloudShadowArray[index_min];
 	    
-	var s = cloudShadowArray[index_min];
+	    diffx = (s.lat - eyeLat) * local_weather.lat_to_m + offset_x;
+	    diffy = -(s.lon - eyeLon) * local_weather.lon_to_m + offset_y;
 	    
-	diffx = (s.lat - eyeLat) * local_weather.lat_to_m + offset_x;
+	    setprop("/local-weather/cloud-shadows/nearest-cloudpos-x",int(diffx) + s.size);
-	diffy = -(s.lon - eyeLon) * local_weather.lon_to_m + offset_y;
+	    setprop("/local-weather/cloud-shadows/nearest-cloudpos-y",int(diffy) + s.strength );
-	
-	setprop("/local-weather/cloud-shadows/nearest-cloudpos-x",int(diffx) + s.size);
-	setprop("/local-weather/cloud-shadows/nearest-cloudpos-y",int(diffy) + s.strength );
 	    
 	    
-	#print("Dist_max:", dist_max, " index_max: ", index_max);
+	    #print("Dist_max:", dist_max, " index_max: ", index_max);
-	cloudShadowMinIndex = index_max;
+	    cloudShadowMinIndex = index_max;
-	if (dist_max > 0.0) {cloudShadowMaxDist = dist_max;}	
+	    if (dist_max > 0.0) {cloudShadowMaxDist = dist_max;}	
+	}
 	
-	
+    settimer( func {shadow_management_loop(i)}, 0);	
-settimer( func {shadow_management_loop(i)}, 0);	
 }
 
 

Nasal/local_weather/weather_tiles.nas

@@ -2780,14 +2780,14 @@ var set_METAR_weather_station = func {
 
 	var gust_angvar = 0.5 * weather_tile_management.relangle(wind_range_from, wind_range_to);
 
+    var gust_relative_strength = 0.0;
 	if ((gust_strength > 0.0) or (gust_angvar > 0.0))
 		{
-		var gust_relative_strength = (gust_strength - windspeed)/windspeed;
+		gust_relative_strength = (gust_strength - windspeed)/windspeed;
 		setprop(lw~"tmp/gust-frequency-hz", 0.2 + rand()*0.8);
 		}
 	else
 		{
-		var gust_relative_strength = 0.0;
 		setprop(lw~"tmp/gust-frequency-hz", 0.0);
 		}
 

Nasal/props.nas

@@ -452,11 +452,10 @@ var _cond_cmp = func(p, op) {
             return nil;
         }
     }
-    if(left == nil or right == nil) {
+
-        logprint(LOG_ALERT, "condition: comparing with nil");
+    if (left == nil) left = 0.0;
-        dump(p);
+    if (right == nil) right = 0.0;
-        return nil;
+
-    }
     if(op < 0) return left < right;
     if(op > 0) return left > right;
     return left == right;

Shaders/airfield-ALS.frag

@@ -9,11 +9,13 @@ varying vec3 relPos;
 varying vec3 worldPos;
 varying vec2 rawPos;
 varying vec3 ecViewdir;
+varying vec2 orthoTexCoord;
 
 
 uniform sampler2D texture;
 uniform sampler2D overlay_texture;
 uniform sampler2D grain_texture;
+uniform sampler2D orthophotoTexture;
 
 varying float steepness;
 
@@ -54,6 +56,8 @@ uniform int use_searchlight;
 uniform int use_landing_light;
 uniform int use_alt_landing_light;
 
+uniform bool orthophotoAvailable;
+
 const float EarthRadius = 5800000.0;
 const float terminator_width = 200000.0;
 
@@ -163,6 +167,13 @@ float noise_2000m = Noise3D(worldPos.xyz, 2000.0);
     texel = texture2D(texture, gl_TexCoord[0].st * base_layer_magnification); 
     float local_autumn_factor = texel.a;
 
+    if (orthophotoAvailable) {
+        vec4 sat_texel = texture2D(orthophotoTexture, orthoTexCoord);
+        if (sat_texel.a > 0) {
+            texel.rgb = sat_texel.rgb;
+        }
+    }
+
     float distortion_factor = 1.0;
     float noise_term;
     float snow_alpha;

Shaders/default.frag

@@ -5,12 +5,16 @@
 
 varying vec4 diffuse_term;
 varying vec3 normal;
+varying vec2 orthoTexCoord;
 
 uniform sampler2D texture;
+uniform sampler2D orthophotoTexture;
 
 ////fog "include" /////
 uniform int fogType;
 
+uniform bool orthophotoAvailable;
+
 vec3 fog_Func(vec3 color, int type);
 //////////////////////
 
@@ -54,6 +58,14 @@ void main()
     // is closer to what the OpenGL fixed function pipeline does.
     color = clamp(color, 0.0, 1.0);
     texel = texture2D(texture, gl_TexCoord[0].st);
+
+    if (orthophotoAvailable) {
+        vec4 sat_texel = texture2D(orthophotoTexture, orthoTexCoord);
+        if (sat_texel.a > 0) {
+            texel.rgb = sat_texel.rgb;
+        }
+    }
+
     fragColor = color * texel + specular;
 
     fragColor.rgb = fog_Func(fragColor.rgb, fogType);

Shaders/default.vert

@@ -12,12 +12,15 @@
 #define MODE_DIFFUSE 1
 #define MODE_AMBIENT_AND_DIFFUSE 2
 
+attribute vec2 orthophotoTexCoord;
+
 // The constant term of the lighting equation that doesn't depend on
 // the surface normal is passed in gl_{Front,Back}Color. The alpha
 // component is set to 1 for front, 0 for back in order to work around
 // bugs with gl_FrontFacing in the fragment shader.
 varying vec4 diffuse_term;
 varying vec3 normal;
+varying vec2 orthoTexCoord;
 
 uniform int colorMode;
 
@@ -33,6 +36,7 @@ void main()
 {
     gl_Position = ftransform();
     gl_TexCoord[0] = gl_TextureMatrix[0] * gl_MultiTexCoord0;
+    orthoTexCoord = orthophotoTexCoord;
     normal = gl_NormalMatrix * gl_Normal;
     vec4 ambient_color, diffuse_color;
     if (colorMode == MODE_DIFFUSE) {

Shaders/generic-ALS-base.vert

@@ -15,6 +15,8 @@
 #define MODE_DIFFUSE 1
 #define MODE_AMBIENT_AND_DIFFUSE 2
 
+attribute vec2 orthophotoTexCoord;
+
 // The constant term of the lighting equation that doesn't depend on
 // the surface normal is passed in gl_{Front,Back}Color. The alpha
 // component is set to 1 for front, 0 for back in order to work around
@@ -22,6 +24,7 @@
 varying vec4 diffuse_term;
 varying vec3 normal;
 varying vec3 relPos;
+varying vec2 orthoTexCoord;
 
 varying float yprime_alt;
 varying float mie_angle;
@@ -77,6 +80,7 @@ void main()
     //vec4 ecPosition = gl_ModelViewMatrix * gl_Vertex;
     gl_Position = ftransform();
     gl_TexCoord[0] = gl_TextureMatrix[0] * gl_MultiTexCoord0;
+    orthoTexCoord = orthophotoTexCoord;
     normal = gl_NormalMatrix * gl_Normal;
     vec4 ambient_color, diffuse_color;
     if (colorMode == MODE_DIFFUSE) {

Shaders/terrain-ALS-base.frag

@@ -9,10 +9,12 @@ varying vec3 relPos;
 
 
 uniform sampler2D texture;
+uniform sampler2D orthophotoTexture;
 
 
 varying float yprime_alt;
 varying float mie_angle;
+varying vec2 orthoTexCoord;
 
 
 uniform float visibility;
@@ -25,6 +27,8 @@ uniform float overcast;
 uniform float eye_alt;
 uniform float cloud_self_shading;
 
+uniform bool orthophotoAvailable;
+
 const float EarthRadius = 5800000.0;
 const float terminator_width = 200000.0;
 
@@ -86,6 +90,14 @@ void main()
     // is closer to what the OpenGL fixed function pipeline does.
     color = clamp(color, 0.0, 1.0);
     texel = texture2D(texture, gl_TexCoord[0].st);
+
+	if (orthophotoAvailable) {
+        vec4 sat_texel = texture2D(orthophotoTexture, orthoTexCoord);
+        if (sat_texel.a > 0) {
+            texel.rgb = sat_texel.rgb;
+        }
+    }
+
     fragColor = color * texel + specular;
 
 

Shaders/terrain-ALS-detailed.frag

@@ -8,12 +8,14 @@ varying vec3 normal;
 varying vec3 relPos;
 varying vec2 rawPos;
 varying vec3 worldPos;
+varying vec2 orthoTexCoord;
 
 
 
 uniform sampler2D texture;
 uniform sampler2D detail_texture;
 uniform sampler2D mix_texture;
+uniform sampler2D orthophotoTexture;
 
 //varying float yprime_alt;
 //varying float mie_angle;
@@ -41,6 +43,8 @@ uniform float hires_overlay_bias;
 uniform int quality_level;
 uniform int tquality_level;
 
+uniform bool orthophotoAvailable;
+
 const float EarthRadius = 5800000.0;
 const float terminator_width = 200000.0;
 
@@ -123,14 +127,24 @@ float noise_2000m = Noise3D(worldPos.xyz, 2000.0);
 
 
 // get the texels
+	int flag = 1;
+    int mix_flag = 1;
 
     texel = texture2D(texture, gl_TexCoord[0].st);
     float local_autumn_factor = texel.a;
 
+	if (orthophotoAvailable) {
+        vec4 sat_texel = texture2D(orthophotoTexture, orthoTexCoord);
+        if (sat_texel.a > 0) {
+            texel.rgb = sat_texel.rgb;
+			flag = 0;
+			mix_flag = 0;
+        }
+    }
+
     float distortion_factor = 1.0;
     vec2 stprime;
-    int flag = 1;
+
-    int mix_flag = 1;
     float noise_term;
     float snow_alpha;
 
@@ -155,14 +169,14 @@ float noise_2000m = Noise3D(worldPos.xyz, 2000.0);
    	
 	}
 
-    if (tquality_level > 2)
+    if ((tquality_level > 2) && (mix_flag == 1))
 	{
 	mix_texel = texture2D(mix_texture, gl_TexCoord[0].st * 1.3);
 	if (mix_texel.a <0.1) {mix_flag = 0;}
  	}
 
 
-    if (tquality_level > 3)  
+    if (tquality_level > 3 && (flag == 1))  
 	{
 	stprime = vec2 (0.86*gl_TexCoord[0].s + 0.5*gl_TexCoord[0].t, 0.5*gl_TexCoord[0].s - 0.86*gl_TexCoord[0].t);
     	//distortion_factor = 0.9375 + (1.0 * nvL[2]);

Shaders/terrain-ALS-detailed.vert

@@ -15,6 +15,8 @@
 #define MODE_DIFFUSE 1
 #define MODE_AMBIENT_AND_DIFFUSE 2
 
+attribute vec2 orthophotoTexCoord;
+
 // The constant term of the lighting equation that doesn't depend on
 // the surface normal is passed in gl_{Front,Back}Color. The alpha
 // component is set to 1 for front, 0 for back in order to work around
@@ -24,6 +26,7 @@ varying vec3 normal;
 varying vec3 relPos;
 varying vec2 rawPos;
 varying vec3 worldPos;
+varying vec2 orthoTexCoord;
 
 
 varying float mie_angle;
@@ -95,6 +98,7 @@ void main()
     //vec4 ecPosition = gl_ModelViewMatrix * gl_Vertex;
     gl_Position = ftransform();
     gl_TexCoord[0] = gl_TextureMatrix[0] * gl_MultiTexCoord0;
+    orthoTexCoord = orthophotoTexCoord;
     normal = gl_NormalMatrix * gl_Normal;
     //nvec = (gl_NormalMatrix * gl_Normal).xy;
     vec4 ambient_color, diffuse_color;

Shaders/terrain-ALS-ultra.frag

@@ -10,6 +10,7 @@ varying vec2 rawPos;
 varying vec3 worldPos;
 varying vec3 ecViewdir;
 varying vec2 grad_dir;
+varying vec2 orthoTexCoord;
 
 
 uniform sampler2D texture;
@@ -18,6 +19,7 @@ uniform sampler2D mix_texture;
 uniform sampler2D grain_texture;
 uniform sampler2D dot_texture;
 uniform sampler2D gradient_texture;
+uniform sampler2D orthophotoTexture;
 
 
 varying float steepness;
@@ -62,6 +64,8 @@ uniform int use_searchlight;
 uniform int use_landing_light;
 uniform int use_alt_landing_light;
 
+uniform bool orthophotoAvailable;
+
 const float EarthRadius = 5800000.0;
 const float terminator_width = 200000.0;
 
@@ -233,6 +237,16 @@ float snownoise_50m = mix(noise_50m, slopenoise_100m, clamp(3.0*(1.0-steepness),
 
     texel = texture2D(texture, gl_TexCoord[0].st);
     float local_autumn_factor = texel.a;
+
+	if (orthophotoAvailable) {
+        vec4 sat_texel = texture2D(orthophotoTexture, orthoTexCoord);
+        if (sat_texel.a > 0) {
+            texel.rgb = sat_texel.rgb;
+			flag = 0;
+			mix_flag = 0;
+        }
+    }
+
 	grain_texel = texture2D(grain_texture, gl_TexCoord[0].st * 25.0);
 	gradient_texel = texture2D(gradient_texture, gl_TexCoord[0].st * 4.0);
 
@@ -264,18 +278,23 @@ float snownoise_50m = mix(noise_50m, slopenoise_100m, clamp(3.0*(1.0-steepness),
 	}
 
 	// the mixture/gradient texture
-	mix_texel = texture2D(mix_texture, gl_TexCoord[0].st * 1.3);
+	if (mix_flag == 1) {
-	if (mix_texel.a <0.1) {mix_flag = 0;}
+		mix_texel = texture2D(mix_texture, gl_TexCoord[0].st * 1.3);
+		if (mix_texel.a <0.1) {mix_flag = 0;}
+	}
 
 	// the hires overlay texture is loaded with parallax mapping
 	
-	stprime = vec2 (0.86*gl_TexCoord[0].s + 0.5*gl_TexCoord[0].t, 0.5*gl_TexCoord[0].s - 0.86*gl_TexCoord[0].t);
+	if (flag == 1) {
-	distortion_factor = 0.97 + 0.06 * noise_500m;
+		stprime = vec2 (0.86*gl_TexCoord[0].s + 0.5*gl_TexCoord[0].t, 0.5*gl_TexCoord[0].s - 0.86*gl_TexCoord[0].t);
-	stprime = stprime * distortion_factor * 15.0;
+		distortion_factor = 0.97 + 0.06 * noise_500m;
-	stprime = stprime + normalize(relPos).xy * 0.022 * (noise_10m + 0.5 * noise_5m +0.25 * noise_2m - 0.875 );
+		stprime = stprime * distortion_factor * 15.0;
+		stprime = stprime + normalize(relPos).xy * 0.022 * (noise_10m + 0.5 * noise_5m +0.25 * noise_2m - 0.875 );
+		
+		detail_texel = texture2D(detail_texture, stprime);
+		if (detail_texel.a <0.1) {flag = 0;}
+	}
 	
-    	detail_texel = texture2D(detail_texture, stprime);
-	if (detail_texel.a <0.1) {flag = 0;}
 	
 
 

Shaders/terrain-ALS-ultra.vert

@@ -15,6 +15,8 @@
 #define MODE_DIFFUSE 1
 #define MODE_AMBIENT_AND_DIFFUSE 2
 
+attribute vec2 orthophotoTexCoord;
+
 // The constant term of the lighting equation that doesn't depend on
 // the surface normal is passed in gl_{Front,Back}Color. The alpha
 // component is set to 1 for front, 0 for back in order to work around
@@ -26,6 +28,7 @@ varying vec2 rawPos;
 varying vec3 worldPos;
 varying vec3 ecViewdir;
 varying vec2 grad_dir;
+varying vec2 orthoTexCoord;
 
 varying float mie_angle;
 varying float steepness;
@@ -110,6 +113,7 @@ void main()
     //vec4 ecPosition = gl_ModelViewMatrix * gl_Vertex;
     //gl_Position = ftransform();
     gl_TexCoord[0] = gl_TextureMatrix[0] * gl_MultiTexCoord0;
+    orthoTexCoord = orthophotoTexCoord;
     normal = gl_NormalMatrix * gl_Normal;
     //nvec = (gl_NormalMatrix * gl_Normal).xy;
     vec4 ambient_color, diffuse_color;

Translations/default/menu.xml

@@ -21,6 +21,10 @@
 
 	<!-- View menu -->
 	<view>View</view>
+	<view-clone>Add Clone View</view-clone>
+	<view-push>Push Pair View</view-push>
+	<view-last-pair>Add Pair View</view-last-pair>
+	<view-last-pair-double>Add Pair Foreground View</view-last-pair-double>
 	<toggle-fullscreen>Toggle Fullscreen</toggle-fullscreen>
 	<rendering-options>Rendering Options</rendering-options>
 	<view-options>View Options</view-options>

Translations/default/options.xml

@@ -11,13 +11,14 @@
 	<general-options>General Options</general-options>
 	<help-desc>Show the most relevant command line options</help-desc>
 	<verbose-desc>Show all command line options when combined with --help or -h</verbose-desc>
-        <launcher-desc>Use GUI launcher</launcher-desc>
+	<launcher-desc>Use GUI launcher</launcher-desc>
+	<composite-viewer-desc>Enable CompositeViewer (extra view windows)</composite-viewer-desc>
 	<version-desc>Display the current FlightGear version</version-desc>
 	<fg-root-desc>Specify the root data path</fg-root-desc>
 	<fg-scenery-desc n="0">Specify the scenery path(s);</fg-scenery-desc>
 	<fg-scenery-desc n="1">Defaults to $FG_ROOT/Scenery</fg-scenery-desc>
 	<fg-aircraft-desc>Specify additional aircraft directory path(s) (alternatively, you can use --aircraft-dir to target a specific aircraft in a given directory)</fg-aircraft-desc>
-        <download-dir-desc>Base directory to use for aircraft and scenery downloads (the TerraSync scenery directory may be specifically set with --terrasync-dir)</download-dir-desc>
+	<download-dir-desc>Base directory to use for aircraft and scenery downloads (the TerraSync scenery directory may be specifically set with --terrasync-dir)</download-dir-desc>
 	<language-desc>Select the language for this session</language-desc>
 	<load-tape-desc>Load recording of earlier flightgear session. If &lt;name&gt; ends with .fgtape it is interpreted as the recording's pathname; otherwise the recording's pathname is formed by prepending &lt;name&gt; with the tape directory and appending ".fgtape".</load-tape-desc>
 	<disable-splash-screen-desc>Disable splash screen</disable-splash-screen-desc>

defaults.xml

@@ -58,6 +58,9 @@ Started September 2000 by David Megginson, david@megginson.com
         <enabled type="bool" userarchive="y">false</enabled>
         <sun-atlas-size type="int" userarchive="y">2048</sun-atlas-size>
       </shadows>
+      <photoscenery>
+        <enabled type="bool" userarchive="y">false</enabled>
+      </photoscenery>
       <debug type="bool">false</debug>
       <realism type="int">5</realism>
       <filtering type="int">8</filtering>
@@ -732,6 +735,7 @@ Started September 2000 by David Megginson, david@megginson.com
       <drag-sensitivity type="double" userarchive="y">1.0</drag-sensitivity>
       <invert-mouse-wheel type="bool" userarchive="y">false</invert-mouse-wheel>
       <skip-flight-controls-mode type="bool" userarchive="y">false</skip-flight-controls-mode>
+      <mouse-rudder-elevator type="bool" userarchive="y">false</mouse-rudder-elevator>
     </mouse>
     <replay>
       <duration type="double" userarchive="y">90</duration>

gui/dialogs/button-config.xml

@@ -486,6 +486,19 @@ var assignButton = func(cmd) {
       </binding>
     </button>
 
+    <button>
+      <row>10</row>
+      <col>3</col>
+      <halign>fill</halign>
+      <legend>Autopilot disconnect</legend>
+      <binding>
+        <command>nasal</command>
+        <script>
+          assignButton("Autopilot disconnect");
+        </script>
+      </binding>
+    </button>
+
     <text>
       <row>0</row>
       <col>4</col>

gui/dialogs/input-config.xml

@@ -209,6 +209,35 @@
       <col>1</col>
     </checkbox>
 
+  <!-- end group 5 -->
+  </group>
+
+  <!-- start group 6 -->
+  <group>
+
+    <halign>left</halign>
+    <valign>top</valign>
+    <layout>table</layout>
+
+    <!-- gap to left border -->
+    <text>
+        <halign>left</halign>
+        <label>   </label>
+        <row>0</row>
+        <col>0</col>
+    </text>
+
+    <checkbox>
+      <halign>left</halign>
+      <label> Mouse rudder also controls elevator</label>
+      <property>/sim/mouse/mouse-rudder-elevator</property>
+      <binding>
+        <command>dialog-apply</command>
+      </binding>
+      <row>0</row>
+      <col>1</col>
+    </checkbox>
+
     <!-- empty line before next -->
     <text>
       <row>1</row>
@@ -217,7 +246,7 @@
       <halign>left</halign>
     </text>
 
-  <!-- end group 5 -->
+  <!-- end group 6 -->
   </group>
 
   <hrule/>

gui/dialogs/rendering.xml

@@ -34,33 +34,33 @@
 
 	<hrule/>
 
-  <text>
+	<text>
-    <visible>
+		<visible>
-      <equals>
+			<equals>
-        <property>/sim/gui/dialogs/rendering/shader-warning</property>
+				<property>/sim/gui/dialogs/rendering/shader-warning</property>
-        <value>1</value>
+				<value>1</value>
-      </equals>
+			</equals>
-    </visible>
+		</visible>
-    <color>
+		<color>
-      <red>1.0</red>
+			<red>1.0</red>
-      <green>0.6</green>
+			<green>0.6</green>
-      <blue>0.6</blue>
+			<blue>0.6</blue>
-    </color>
+		</color>
-    <label>Warning: Intel integrated graphics detected.  Your graphics card may not support shaders or complex graphics.</label>
+		<label>Warning: Intel integrated graphics detected.  Your graphics card may not support shaders or complex graphics.</label>
-  </text>
+	</text>
 
 	<group>
 		<halign>center</halign>
 		<layout>hbox</layout>
 
-    <!-- only for a gap -->
+		<!-- only for a gap -->
-    <group>
+		<group>
-      <layout>vbox</layout>
+			<layout>vbox</layout>
-      <default-padding>1</default-padding>
+			<default-padding>1</default-padding>
-      <text>
+			<text>
-        <label> </label>
+				<label> </label>
-      </text>
+			</text>
-    </group>
+		</group>
 
 		<group>
 			<layout>vbox</layout>
@@ -172,15 +172,15 @@
 			</checkbox>
 
 			<checkbox>
-          <halign>left</halign>
+				<halign>left</halign>
-          <label>Use disk space for faster loading (DDS Texture Cache)</label>
+				<label>Use disk space for faster loading (DDS Texture Cache)</label>
-          <name>texture-cache-enabled</name>
+				<name>texture-cache-enabled</name>
-          <property>/sim/rendering/texture-cache/cache-enabled</property>
+				<property>/sim/rendering/texture-cache/cache-enabled</property>
-          <binding>
+				<binding>
-              <command>dialog-apply</command>
+					<command>dialog-apply</command>
-              <object-name>texture-cache-enabled</object-name>
+					<object-name>texture-cache-enabled</object-name>
-          </binding>
+				</binding>
-      </checkbox>
+			</checkbox>
 
 			<checkbox>
 				<halign>left</halign>
@@ -234,9 +234,9 @@
 				</visible>
 			</text>
 
-      <empty>
+			<empty>
-  			<stretch>1</stretch>
+				<stretch>1</stretch>
-  		</empty>
+			</empty>
 
 			<group>
 				<layout>hbox</layout>
@@ -486,23 +486,23 @@
 				<layout>table</layout>
 
 				<button>
-          <row>0</row>
+					<row>0</row>
-          <col>0</col>
+					<col>0</col>
-          <enable>
+					<enable>
-              <property>/sim/rendering/shaders/skydome</property>
+						<property>/sim/rendering/shaders/skydome</property>
-          </enable>
+					</enable>
-          <legend>Filter effects</legend>
+					<legend>Filter effects</legend>
-          <halign>center</halign>
+					<halign>center</halign>
-          <binding>
+					<binding>
-              <command>dialog-show</command>
+						<command>dialog-show</command>
-              <dialog-name>als-filters</dialog-name>
+						<dialog-name>als-filters</dialog-name>
-          </binding>
+					</binding>
-          <binding>
+					<binding>
-              <command>dialog-close</command>
+						<command>dialog-close</command>
-              <dialog-name>rendering</dialog-name>
+						<dialog-name>rendering</dialog-name>
-          </binding>
+					</binding>
-          <pref-width>200</pref-width>
+					<pref-width>200</pref-width>
-	    	</button>
+				</button>
 
 				<button>
 					<row>0</row>
@@ -533,25 +533,25 @@
 
 		</group>
 
-    <!-- only for a gap -->
+		<!-- only for a gap -->
-    <group>
+		<group>
-      <layout>vbox</layout>
+			<layout>vbox</layout>
-      <default-padding>1</default-padding>
+			<default-padding>1</default-padding>
-      <text>
+			<text>
-        <label> </label>
+				<label> </label>
-      </text>
+			</text>
-    </group>
+		</group>
 
 		<vrule/>
 
-    <!-- only for a gap -->
+		<!-- only for a gap -->
-    <group>
+		<group>
-      <layout>vbox</layout>
+			<layout>vbox</layout>
-      <default-padding>1</default-padding>
+			<default-padding>1</default-padding>
-      <text>
+			<text>
-        <label> </label>
+				<label> </label>
-      </text>
+			</text>
-    </group>
+		</group>
 
 		<group>
 			<layout>vbox</layout>
@@ -846,45 +846,49 @@
 					<col>0</col>
 					<halign>left</halign>
 					<label>Terrain Textures</label>
-        </text>
+				</text>
 
-        <combo>
+				<combo>
-          <row>7</row>
+					<row>7</row>
-          <col>1</col>
+					<col>1</col>
-          <name>texture-set</name>
+					<name>texture-set</name>
 					<pref-width>200</pref-width>
-          <property>sim/gui/dialogs/rendering/texture-set</property>
+					<property>sim/gui/dialogs/rendering/texture-set</property>
-          <value>Region-specific</value>
+					<value>Region-specific</value>
-          <value>Global</value>
+					<value>Global</value>
-          <value>Global alternative (DDS format)</value>
+					<value>Global alternative (DDS format)</value>
-          <binding>
+					<binding>
-            <command>dialog-apply</command>
+						<command>dialog-apply</command>
-            <object-name>texture-set</object-name>
+						<object-name>texture-set</object-name>
-          </binding>
+					</binding>
-          <binding>
+					<binding>
-            <command>nasal</command>
+						<command>nasal</command>
-            <script>
+						<script>
               var file = materials[getprop("/sim/gui/dialogs/rendering/texture-set")];
               setprop("/sim/rendering/materials-file", file);
-            </script>
+						</script>
-          </binding>
+					</binding>
-          <binding>
+					<binding>
-            <command>reload-materials</command>
+						<command>reload-materials</command>
-          </binding>
+					</binding>
-        </combo>
+				</combo>
 
-				<text>
+				<checkbox>
 					<row>8</row>
 					<col>0</col>
-					<colspan>2</colspan>
+					<label>Satellite Photoscenery</label>
-					<halign>left</halign>
+					<name>satellite-photoscenery</name>
-					<color>
+					<enable>
-			      <red>1.0</red>
+						<not>
-			      <green>0.6</green>
+							<property>/sim/rendering/rembrandt/enabled</property>
-			      <blue>0.6</blue>
+						</not>
-			    </color>
+					</enable>
-					<label>Warning: Pylons, Detailed Roads, Buildings use a lot of memory</label>
+					<property>/sim/rendering/photoscenery/enabled</property>
-        </text>
+					<binding>
+						<command>dialog-apply</command>
+						<object-name>satellite-photoscenery</object-name>
+					</binding>
+				</checkbox>
 
 				<text>
 					<row>9</row>
@@ -892,13 +896,25 @@
 					<colspan>2</colspan>
 					<halign>left</halign>
 					<color>
-			      <red>1.0</red>
+						<red>1.0</red>
-			      <green>0.6</green>
+						<green>0.6</green>
-			      <blue>0.6</blue>
+						<blue>0.6</blue>
-			    </color>
+					</color>
-					<label>and disk space, and are only available in limited areas.</label>
+					<label>Warning: Pylons, Detailed Roads, Buildings use a lot of memory</label>
-        </text>
+				</text>
 
+				<text>
+					<row>10</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>and disk space, and are only available in limited areas.</label>
+				</text>
 			</group>
 
 			<group>
@@ -933,16 +949,16 @@
 				</enable>
 			</checkbox>
 
-      <checkbox>
+			<checkbox>
-          <halign>left</halign>
+				<halign>left</halign>
-          <label>Animated jetways</label>
+				<label>Animated jetways</label>
-          <name>jetways</name>
+				<name>jetways</name>
-          <property>/nasal/jetways/enabled</property>
+				<property>/nasal/jetways/enabled</property>
-          <binding>
+				<binding>
-              <command>dialog-apply</command>
+					<command>dialog-apply</command>
-              <object-name>jetways</object-name>
+					<object-name>jetways</object-name>
-          </binding>
+				</binding>
-      </checkbox>
+			</checkbox>
 
 			<empty>
 				<stretch>1</stretch>
@@ -950,14 +966,14 @@
 
 		</group>
 
-    <!-- only for a gap -->
+		<!-- only for a gap -->
-    <group>
+		<group>
-      <layout>vbox</layout>
+			<layout>vbox</layout>
-      <default-padding>1</default-padding>
+			<default-padding>1</default-padding>
-      <text>
+			<text>
-        <label> </label>
+				<label> </label>
-      </text>
+			</text>
-    </group>
+		</group>
 
 	</group>
 
@@ -965,10 +981,10 @@
 
 	<button>
 		<legend>  OK  </legend>
-        <default>true</default>
+		<default>true</default>
-        <binding>
+		<binding>
-            <command>nasal</command>
+			<command>nasal</command>
-            <script>
+			<script>
               var reinit = 0;
               foreach (var p; reload_props) {
                 if (reload_vals[p] != getprop(p)) {
@@ -979,8 +995,8 @@
               if (reinit) {
                 fgcommand("reinit", props.Node.new({"subsystem": "scenery"}));
               }
-            </script>
+			</script>
-        </binding>
+		</binding>
 		<binding>
 			<command>dialog-close</command>
 		</binding>
@@ -1113,15 +1129,16 @@
 
 
       var reload_props = [
-        "/sim/rendering/materials-file",
+				"/sim/rendering/photoscenery/enabled",
-        "/sim/rendering/osm-buildings",
+				"/sim/rendering/materials-file",
-        "/sim/rendering/random-buildings",
+				"/sim/rendering/osm-buildings",
-        "/sim/rendering/random-objects",
+				"/sim/rendering/random-buildings",
-        "/sim/rendering/random-vegetation",
+				"/sim/rendering/random-objects",
-        "/sim/rendering/random-vegetation-shadows",
+				"/sim/rendering/random-vegetation",
-        "/sim/rendering/vegetation-density",
+				"/sim/rendering/random-vegetation-shadows",
-        "/sim/rendering/clouds3d-enable",
+				"/sim/rendering/vegetation-density",
-        "/sim/rendering/clouds3d-density",
+				"/sim/rendering/clouds3d-enable",
+				"/sim/rendering/clouds3d-density",
 				"/sim/rendering/scenery-path-suffix[0]/enabled",
 				"/sim/rendering/scenery-path-suffix[1]/enabled",
 				"/sim/rendering/scenery-path-suffix[2]/enabled",

gui/menubar.xml

@@ -93,6 +93,49 @@
 	<menu>
 		<name>view</name>
 
+		<item>
+            <enable>
+                <property>/sim/rendering/composite-viewer-enabled</property>
+            </enable>
+			<name>view-clone</name>
+			<key>Sup-v</key>
+			<binding>
+				<command>view-clone</command>
+			</binding>
+		</item>
+
+		<item>
+            <enable>
+                <property>/sim/rendering/composite-viewer-enabled</property>
+            </enable>
+			<name>view-push</name>
+			<binding>
+				<command>view-push</command>
+			</binding>
+		</item>
+
+		<item>
+            <enable>
+                <property>/sim/rendering/composite-viewer-enabled</property>
+            </enable>
+			<name>view-last-pair</name>
+			<key>Sup-V</key>
+			<binding>
+				<command>view-last-pair</command>
+			</binding>
+		</item>
+
+		<item>
+            <enable>
+                <property>/sim/rendering/composite-viewer-enabled</property>
+            </enable>
+			<name>view-last-pair-double</name>
+			<key></key>
+			<binding>
+				<command>view-last-pair-double</command>
+			</binding>
+		</item>
+
 		<item>
 			<name>toggle-fullscreen</name>
 			<key>Shift-F10</key>

mice.xml

@@ -151,19 +151,17 @@ current mode for each mouse is held in the
     <!-- No buttons pressed: control elevator -->
     <binding>
      <condition>
-      <!--
       <and>
-       <not>
+       <or>
-        <property>/devices/status/mice/mouse[0]/button[0]</property>
+        <not>
-       </not>
+         <property>/devices/status/mice/mouse[0]/button[0]</property>
+        </not>
+        <property>/sim/mouse/mouse-rudder-elevator</property>
+       </or>
        <not>
         <property>/devices/status/mice/mouse[0]/button[1]</property>
        </not>
       </and>
-      -->
-      <not>
-        <property>/devices/status/mice/mouse[0]/button[1]</property>
-      </not>
      </condition>
      <command>property-adjust</command>
      <property>/controls/flight/elevator</property>

options.xml

@@ -58,6 +58,13 @@
     <brief/>
    </option>
 
+   <option>
+    <name>composite-viewer</name>
+    <description>composite-viewer-desc</description>
+    <arg>1</arg>
+    <brief/>
+   </option>
+
    <option>
     <name>verbose</name>
     <short>v</short>