Added osgFX::MultiTextureControl node for managing blending between

different texture layers.

src/osgPlugins/ive/MultiTextureControl.cpp

@@ -0,0 +1,70 @@
+/**********************************************************************
+ *
+ *    FILE:            MultiTextureControl.cpp
+ *
+ *    DESCRIPTION:    Read/Write osg::MultiTextureControl in binary format to disk.
+ *
+ *    CREATED BY:        Auto generated by iveGenerate
+ *                    and later modified by Rune Schmidt Jensen.
+ *
+ *    HISTORY:        Created 24.3.2003
+ *
+ *    Copyright 2003 VR-C
+ **********************************************************************/
+
+#include "Exception.h"
+#include "MultiTextureControl.h"
+#include "Group.h"
+
+using namespace ive;
+
+void MultiTextureControl::write(DataOutputStream* out){
+    // Write MultiTextureControl's identification.
+    out->writeInt(IVEMULTITEXTURECONTROL);
+    // If the osg class is inherited by any other class we should also write this to file.
+    osg::Group*  group = dynamic_cast<osg::Group*>(this);
+    if(group){
+        ((ive::Group*)(group))->write(out);
+    }
+    else
+        throw Exception("MultiTextureControl::write(): Could not cast this osg::MultiTextureControl to an osg::Group.");
+    // Write MultiTextureControl's properties.
+
+
+    // Write rangelist
+    unsigned int size = getNumTextureWeights();
+    out->writeUInt(size);
+    for(unsigned int i=0;i<size;i++){
+        out->writeFloat(getTextureWeight(i));
+    }
+}
+
+void MultiTextureControl::read(DataInputStream* in){
+    // Peek on MultiTextureControl's identification.
+    int id = in->peekInt();
+    if(id == IVEMULTITEXTURECONTROL){
+        // Read MultiTextureControl's identification.
+        id = in->readInt();
+
+        // If the osg class is inherited by any other class we should also read this from file.
+        osg::Group*  group = dynamic_cast<osg::Group*>(this);
+        if(group){
+            ((ive::Group*)(group))->read(in);
+        }
+        else
+            throw Exception("MultiTextureControl::read(): Could not cast this osg::MultiTextureControl to an osg::Group.");
+        // Read MultiTextureControl's properties
+
+
+        // Read rangelist
+        unsigned int size = in->readUInt();
+        for(unsigned int i=0;i<size;i++)
+                {
+            float value = in->readFloat();
+            setTextureWeight(i, value);
+        }
+    }
+    else{
+        throw Exception("MultiTextureControl::read(): Expected MultiTextureControl identification.");
+    }
+}