Merge branch 'master' of git://gitorious.org/fg/fgdata

Aircraft/Generic/WalkView/walkview.nas

@@ -12,6 +12,8 @@
 # Global API. Automatically selects the right walker for the current view.
 
 # NOTE: Coordinates are always 3 component lists: [x, y, z].
+# The coordinate system is the same as the main 3d model one.
+# X - back, Y - right and Z - up.
 
 # Set the forward speed of the active walker.
 #   speed - walker speed in m/sec
@@ -39,6 +41,17 @@ var side_step = func (speed) {
     }
 }
 
+# Get the currently active walker.
+#   Returns the active walker object or nil otherwise.
+var active_walker = func {
+    var cv = view.current.getPath();
+    if (contains(walkers, cv)) {
+        return walkers[cv];
+    } else {
+        return nil;
+    }
+}
+
 ###############################################################################
 # The walker class.
 # ==============================================================================
@@ -77,6 +90,10 @@ var side_step = func (speed) {
 #                                             [19.5,  0.3, -8.85]);
 #       var walker = walkview.walker.new("Passenger View", constraint);
 #
+# NOTES:
+#       Currently there can only be one view manager per view so the
+#       walk view should not have any other view manager.
+#
 var walker = {
     new : func (view_name, constraints = nil) {
         var obj = { parents : [walker] };

Effects/cloud.eff

@@ -36,7 +36,7 @@
         <write-mask>false</write-mask>
       </depth>
       <render-bin>
-        <bin-number>10</bin-number>
+        <bin-number>9</bin-number>
         <bin-name>DepthSortedBin</bin-name>
       </render-bin>
       <texture-unit>

Shaders/contrail.frag

@@ -0,0 +1,15 @@
+uniform sampler2D baseTexture;
+
+varying float fogFactor;
+varying float distanceFactor;
+varying vec2  texCoord;
+
+
+void main(void)
+{
+    vec4 base = texture2D( baseTexture, gl_TexCoord[0].st);
+    vec4 finalColor = base * gl_Color;
+    gl_FragColor.rgb = mix(gl_Fog.color.rgb, finalColor.rgb, fogFactor);
+    gl_FragColor.a = mix(0.0, finalColor.a, distanceFactor);
+}
+

Shaders/contrail.vert

@@ -0,0 +1,99 @@
+// -*-C++-*-
+#version 120
+
+varying float fogFactor;
+varying float distanceFactor;
+
+uniform sampler3D Noise;
+
+uniform float scale_x;
+uniform float scale_y;
+uniform float scale_z;
+
+uniform float offset_x;
+uniform float offset_y;
+uniform float offset_z;
+
+uniform float fade_max;
+uniform float fade_min;
+
+void main(void)
+{
+    vec4 rawpos     = gl_Vertex;
+
+    float shade = 0.9;
+    float cloud_height = 30000.0;
+
+    // map noise vectors
+    vec4 noisevec = texture3D(Noise, rawpos.xyz);
+    float noise0 = (noisevec.r * 2) - 1;
+    float noise1 =(noisevec.g * 2) - 1;
+    vec2 noise2 = noisevec.xy;
+
+    gl_TexCoord[0] = gl_TextureMatrix[0] * gl_MultiTexCoord0;
+    //gl_TexCoord[0] = gl_MultiTexCoord0 + vec4(textureIndexX, textureIndexY, 0.0, 0.0);
+    vec4 ep = gl_ModelViewMatrixInverse * vec4(0.0,0.0,0.0,1.0);
+    vec4 l  = gl_ModelViewMatrixInverse * vec4(0.0,0.0,1.0,1.0);
+    vec3 u = normalize(ep.xyz - l.xyz);
+
+    // Find a rotation matrix that rotates 1,0,0 into u. u, r and w are
+    // the columns of that matrix.
+    vec3 absu = abs(u);
+    vec3 r = normalize(vec3(-u.y, u.x, 0));
+    vec3 w = cross(u, r);
+
+    // Do the matrix multiplication by [ u r w pos]. Scale
+    // the x component first
+    gl_Position = vec4(gl_Vertex.x * scale_x, 0.0, 0.0, 1.0);
+    gl_Position.xyz += gl_Vertex.x * u;
+    gl_Position.xyz += gl_Vertex.y * r * scale_y;
+    gl_Position.xyz += gl_Vertex.z * w * scale_z;
+
+    // Adjust the position post-rotation and scaling
+    gl_Position.yz -= 3/2;
+
+    // Offset in y and z directions using a random noise factor
+    float offset_Y = (noise0 * offset_y) + offset_y/2;
+    float offset_Z = (noise0 * offset_z) + offset_z/2;
+
+    distanceFactor = 1.0 - clamp(abs(noise0), fade_min, fade_max);
+//    distanceFactor = 0.5;
+
+    gl_Position.y += offset_Y;
+    gl_Position.z += offset_Z;
+
+    gl_Position.xyz += gl_Color.xyz;
+
+    // Determine a lighting normal based on the vertex position from the
+    // center of the cloud, so that sprite on the opposite side of the cloud to the sun are darker.
+    float n = dot(normalize(-gl_LightSource[0].position.xyz),
+        normalize(mat3x3(gl_ModelViewMatrix) * (- gl_Position.xyz)));;
+
+    // Determine the position - used for fog and shading calculations
+    vec3 ecPosition = vec3(gl_ModelViewMatrix * gl_Position);
+    float fogCoord = abs(ecPosition.z);
+    float fract = smoothstep(0.0, cloud_height, gl_Position.z + cloud_height);
+
+    // Final position of the sprite
+    gl_Position = gl_ModelViewProjectionMatrix * gl_Position;
+
+    // Calculate the total offset distance in the yx plane, normalised
+    /*float distance = normalize(sqrt(pow(gl_Position.y, 2) + pow(gl_Position.z, 2)));
+    distanceFactor = 1.0 - clamp(distance, 0.5, 1.0);*/
+    // Determine the shading of the sprite based on its vertical position and position relative to the sun.
+    n = min(smoothstep(-0.5, 0.0, n), fract);
+
+    // Determine the shading based on a mixture from the backlight to the front
+    vec4 backlight = gl_LightSource[0].diffuse * shade;
+
+    gl_FrontColor = mix(backlight, gl_LightSource[0].diffuse, n);
+    gl_FrontColor += gl_FrontLightModelProduct.sceneColor;
+
+    // As we get within 100m of the sprite, it is faded out. Equally at large distances it also fades out.
+    gl_FrontColor.a = min(smoothstep(10.0, 100.0, fogCoord), 1 - smoothstep(30000.0, 40000.0, fogCoord));
+    gl_BackColor = gl_FrontColor;
+
+    // Fog doesn't affect clouds as much as other objects.
+    fogFactor = exp( -gl_Fog.density * fogCoord);
+    fogFactor = clamp(fogFactor, 0.0, 1.0);
+}

gui/dialogs/rendering.xml

@@ -270,6 +270,15 @@
             <command>dialog-apply</command>
           </binding>
         </checkbox>
+
+        <checkbox>
+          <halign>left</halign>
+          <label>Persistent contrails</label>
+          <property>/sim/rendering/contrail-shader</property>
+          <binding>
+            <command>dialog-apply</command>
+          </binding>
+        </checkbox>
       </group>
 
       <group>

materials.xml

@@ -2935,7 +2935,7 @@ Shared parameters for various materials.
    <r>0.92157</r>
    <g>0.92157</g>
    <b>0.76471</b>
-   <a>1</a>
+   <a>1.0</a>
   </emissive>
  </material>
 
@@ -2945,7 +2945,7 @@ Shared parameters for various materials.
    <r>0.92157</r>
    <g>0.92157</g>
    <b>0.76471</b>
-   <a>1</a>
+   <a>1.0</a>
   </emissive>
  </material>
 
@@ -2955,7 +2955,7 @@ Shared parameters for various materials.
    <r>0.92157</r>
    <g>0.92157</g>
    <b>0.76471</b>
-   <a>1</a>
+   <a>1.0</a>
   </emissive>
  </material>
 
@@ -2985,7 +2985,7 @@ Shared parameters for various materials.
    <r>0.92157</r>
    <g>0.92157</g>
    <b>0.76471</b>
-   <a>1</a>
+   <a>1.0</a>
   </emissive>
  </material>
 
@@ -2995,7 +2995,7 @@ Shared parameters for various materials.
    <r>0.92157</r>
    <g>0.92157</g>
    <b>0.76471</b>
-   <a>1</a>
+   <a>1.0</a>
   </emissive>
  </material>
 
@@ -3005,7 +3005,7 @@ Shared parameters for various materials.
    <r>0.92157</r>
    <g>0.84314</g>
    <b>0.078431</b>
-   <a>1</a>
+   <a>1.0</a>
   </emissive>
  </material>
 
@@ -3035,7 +3035,7 @@ Shared parameters for various materials.
    <r>0.92157</r>
    <g>0.35294</g>
    <b>0.35294</b>
-   <a>1</a>
+   <a>1.0</a>
   </emissive>
  </material>
 
@@ -3065,7 +3065,7 @@ Shared parameters for various materials.
    <r>0.078431</r>
    <g>0.92157</g>
    <b>0.078431</b>
-   <a>1</a>
+   <a>1.0</a>
   </emissive>
  </material>
 

preferences.xml

@@ -58,6 +58,7 @@ Started September 2000 by David Megginson, david@megginson.com
    <debug type="bool">false</debug>
    <realism>5</realism>
    <filtering>8</filtering>
+   <multithreading-mode>AutomaticSelection</multithreading-mode>
    <static-lod>
     <detailed userarchive="y">1500</detailed>
     <rough userarchive="y">9000</rough>
@@ -137,8 +138,10 @@ Started September 2000 by David Megginson, david@megginson.com
    <landmass-shader userarchive="y">0</landmass-shader>
    <water-shader userarchive="y">0</water-shader>
    <urban-shader userarchive="y">0</urban-shader>
+   <contrail-shader userarchive="y">0</contrail-shader>
    <snow-level-m type="double">2000.0</snow-level-m>
    <quality-level type="double" userarchive="y">0.0</quality-level>
+  
 </rendering>
   <model-hz type="int">120</model-hz>
   <navdb>
@@ -783,6 +786,22 @@ Started September 2000 by David Megginson, david@megginson.com
      <wind-speed-change-rel>1.3</wind-speed-change-rel>
     </entry>
 
+     <entry>
+       <elevation-ft>30000</elevation-ft>
+       <wind-from-heading-deg>330</wind-from-heading-deg>
+       <wind-speed-kt>50</wind-speed-kt>
+       <wind-heading-change-deg>35</wind-heading-change-deg>
+       <wind-speed-change-rel>1.3</wind-speed-change-rel>
+     </entry>
+
+     <entry>
+       <elevation-ft>40000</elevation-ft>
+       <wind-from-heading-deg>340</wind-from-heading-deg>
+       <wind-speed-kt>70</wind-speed-kt>
+       <wind-heading-change-deg>35</wind-heading-change-deg>
+       <wind-speed-change-rel>1.3</wind-speed-change-rel>
+     </entry>
+
    </aloft>
 
   </config>
@@ -790,14 +809,14 @@ Started September 2000 by David Megginson, david@megginson.com
   <clouds>
    <status>true</status>
    <layer n="0">
-    <coverage>scattered</coverage>
+    <coverage>clear</coverage>
     <elevation-ft>4000</elevation-ft>
     <thickness-ft>600</thickness-ft>
     <transition-ft>150</transition-ft>
     <span-m>40000</span-m>
    </layer>
    <layer n="1">
-    <coverage>cirrus</coverage>
+    <coverage>clear</coverage>
     <elevation-ft>19500</elevation-ft>
     <thickness-ft>65</thickness-ft>
     <transition-ft>25</transition-ft>