Harald JOHNSEN:

I have corrected a few bugs with the owner draw gauge, weather radar code and heat-haze effect.

- od_gauge.cxx :
  corrected a rendering bug where the generated texture was only visible
  from a certain angle or distance ;
  corrected the search of textures inside the aircraft scene graph ;

- wxRadar.cxx :
  the echo of clouds was lost when the pilot was not looking in the
  plane direction ;

src/Instrumentation/od_gauge.cxx

@@ -2,7 +2,7 @@
 //
 // Written by Harald JOHNSEN, started May 2005.
 //
-// Copyright (C) 2005  Harald JOHNSEN - hjohnsen@evc.net
+// Copyright (C) 2005  Harald JOHNSEN
 //
 // This program is free software; you can redistribute it and/or
 // modify it under the terms of the GNU General Public License as
@@ -130,11 +130,15 @@ void FGODGauge::Clear(void) {
 
 void FGODGauge::endCapture(GLuint texID) {
     glBindTexture(GL_TEXTURE_2D, texID);
+    // don't use mimaps if we don't update them
+    glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
+
     glCopyTexSubImage2D(GL_TEXTURE_2D, 0, 0, 0, 0, 0, textureWH, textureWH);
     if(rtAvailable)
         rt->EndCapture();
     else
         set3D();
+    glBindTexture(GL_TEXTURE_2D, 0);
 }
 
 void FGODGauge::setSize(int viewSize) {
@@ -149,19 +153,39 @@ bool FGODGauge::serviceable(void) {
 /**
  * Locate a texture SSG node in a branch.
  */
-static ssgTexture *
+static const char *strip_path(const char *name) {
+    /* Remove all leading path information. */
+    const char* seps = "\\/" ;
+    const char* fn = & name [ strlen ( name ) - 1 ] ;
+    for ( ; fn != name && strchr(seps,*fn) == NULL ; fn-- )
+        /* Search back for a seperator */ ;
+    if ( strchr(seps,*fn) != NULL )
+        fn++ ;
+    return fn ;
+}
+
+static ssgSimpleState *
 find_texture_node (ssgEntity * node, const char * name)
 {
-  if( node->isA( ssgTypeTexture() ) ) {
-    ssgTexture *tex = (ssgTexture *) node;
-    char * texture_name = tex->getFilename();
-    if (texture_name != 0 && !strcmp(name, texture_name))
-      return tex;
+  if( node->isAKindOf( ssgTypeLeaf() ) ) {
+    ssgLeaf *leaf = (ssgLeaf *) node;
+    ssgSimpleState *state = (ssgSimpleState *) leaf->getState();
+    if( state ) {
+        ssgTexture *tex = state->getTexture();
+        if( tex ) {
+            const char * texture_name = tex->getFilename();
+            if (texture_name) {
+                texture_name = strip_path( texture_name );
+                if ( !strcmp(name, texture_name) )
+                    return state;
+            }
+        }
+    }
   }
-  else if (node->isAKindOf(ssgTypeBranch())) {
+  else {
     int nKids = node->getNumKids();
     for (int i = 0; i < nKids; i++) {
-      ssgTexture * result =
+      ssgSimpleState * result =
         find_texture_node(((ssgBranch*)node)->getKid(i), name);
       if (result != 0)
         return result;
@@ -172,9 +196,10 @@ find_texture_node (ssgEntity * node, const char * name)
 
 void FGODGauge::set_texture(const char * name, GLuint new_texture) {
     ssgEntity * root = globals->get_scenery()->get_aircraft_branch();
-    ssgTexture * node = find_texture_node( root, name );
+    name = strip_path( name );
+    ssgSimpleState * node = find_texture_node( root, name );
     if( node )
-        node->setHandle( new_texture );
+        node->setTexture( new_texture );
 }
 
 void FGODGauge::set2D() {

src/Instrumentation/wxradar.cxx

@@ -2,7 +2,7 @@
 //
 // Written by Harald JOHNSEN, started May 2005.
 //
-// Copyright (C) 2005  Harald JOHNSEN - hjohnsen@evc.net
+// Copyright (C) 2005  Harald JOHNSEN
 //
 // This program is free software; you can redistribute it and/or
 // modify it under the terms of the GNU General Public License as
@@ -134,8 +134,18 @@ wxRadarBg::update (double delta_time_sec)
             odg->set_texture( odgauge_name, resultTexture->getHandle());
         last_switchKnob = switchKnob;
     }
+    FGViewer *current__view = globals->get_current_view();
+    if( current__view->getInternal() && 
+        (current__view->getHeadingOffset_deg() <= 15.0 || current__view->getHeadingOffset_deg() >= 345.0) &&
+        (current__view->getPitchOffset_deg() <= 15.0 || current__view->getPitchOffset_deg() >= 350.0) ) {
+
+        // we don't update the radar echo if the pilot looks around
+        // this is a copy
+        radarEchoBuffer = *sgEnviro.get_radar_echo();
+    }
     odg->beginCapture(256);
     odg->Clear();
+
     glMatrixMode(GL_MODELVIEW);
     glLoadIdentity();
     glPushMatrix();
@@ -172,7 +182,7 @@ wxRadarBg::update (double delta_time_sec)
             const float rot_x = cos ( view_heading );
             const float rot_y = sin ( view_heading );
 
-            list_of_SGWxRadarEcho *radarEcho = sgEnviro.get_radar_echo();
+            list_of_SGWxRadarEcho *radarEcho = &radarEchoBuffer;
             list_of_SGWxRadarEcho::iterator iradarEcho;
             const float LWClevel[] = { 0.1f, 0.5f, 2.1f };
             const float symbolSize = 1.0f / 8.0f ;

src/Instrumentation/wxradar.hxx

@@ -25,6 +25,7 @@
 
 #include <simgear/props/props.hxx>
 #include <simgear/structure/subsystem_mgr.hxx>
+#include <simgear/environment/visual_enviro.hxx>
 
 class ssgTexture;
 class FGODGauge;
@@ -53,6 +54,7 @@ private:
     string last_switchKnob;
     bool sim_init_done;
     FGODGauge *odg;
+    list_of_SGWxRadarEcho radarEchoBuffer;
 };
 
 #endif // _INST_WXRADAR_HXX