Added missing EarthSky.cpp file to osg plguin.

src/osgPlugins/osg/EarthSky.cpp

@@ -0,0 +1,80 @@
+#include "osg/EarthSky"
+
+#include "osgDB/Registry"
+#include "osgDB/Input"
+#include "osgDB/Output"
+
+using namespace osg;
+using namespace osgDB;
+
+// forward declare functions to use later.
+bool EarthSky_readLocalData(Object& obj, Input& fr);
+bool EarthSky_writeLocalData(const Object& obj, Output& fw);
+
+// register the read and write functions with the osgDB::Registry.
+RegisterDotOsgWrapperProxy g_EarthSkyProxy
+(
+    new osg::EarthSky,
+    "EarthSky",
+    "Object Node EarthSky Group",
+    &EarthSky_readLocalData,
+    &EarthSky_writeLocalData
+);
+
+bool EarthSky_readLocalData(Object& obj, Input& fr)
+{
+    bool iteratorAdvanced = false;
+
+    EarthSky& es = static_cast<EarthSky&>(obj);
+
+    if (fr.matchSequence("requiresClear"))
+    {
+        if (fr[1].matchWord("TRUE"))
+        {
+            es.setRequiresClear(true);
+            iteratorAdvanced = true;
+            fr+=2;
+        }
+        else if (fr[1].matchWord("FALSE"))
+        {
+            es.setRequiresClear(false);
+            iteratorAdvanced = true;
+            fr+=2;
+        }
+    }
+
+    osg::Vec4 vec4(0.0f,0.0f,0.0f,1.0f);
+    
+    if (fr[0].matchWord("clearColor") && 
+        fr[1].getFloat(vec4[0]) &&
+        fr[2].getFloat(vec4[1]) &&
+        fr[3].getFloat(vec4[2]) &&
+        fr[4].getFloat(vec4[3]))
+    {
+        es.setClearColor(vec4);
+        fr+=5;
+        iteratorAdvanced = true;
+    }
+
+    return iteratorAdvanced;
+}
+
+
+bool EarthSky_writeLocalData(const Object& obj, Output& fw)
+{
+    const EarthSky& es = static_cast<const EarthSky&>(obj);
+
+    fw.indent() << "requiresClear ";
+    if (es.getRequiresClear())
+    {
+        fw<<"TRUE"<<endl;
+    }
+    else
+    {
+        fw<<"FALSE"<<endl;
+    }
+    
+    fw.indent() << "clearColor "<<es.getClearColor()<<endl;
+
+    return true;
+}