Brede's changes for limited morphed vertex support. These changes allow

a model with morphed vertecies to load correctly with LOD switches, but
does not implement the vertex morphing.

src/osgPlugins/flt/FaceRecord.cpp

@@ -30,9 +30,18 @@ int FaceRecord::numberOfVertices()
 {
     for (int n=0; n < getNumChildren(); n++)
     {
-        VertexListRecord* pSVertexList = (VertexListRecord*)getChild(n);
+        Record* child = getChild(n);
-        if (pSVertexList && pSVertexList->isOfType(VERTEX_LIST_OP))
+        if (!child) continue;
-            return pSVertexList->numberOfVertices();
+
+        if (child->isOfType(VERTEX_LIST_OP))
+        {
+            return ((VertexListRecord*)child)->numberOfVertices();
+        }
+        else if (child->isOfType(MORPH_VERTEX_LIST_OP))
+        {
+            return ((MorphVertexListRecord*)child)->numberOfVertices();
+        }
+
     }
 
     return 0;
@@ -43,9 +52,17 @@ int FaceRecord::getVertexPoolOffset(int index)
 {
     for (int n=0; n < getNumChildren(); n++)
     {
-        VertexListRecord* pSVertexList = (VertexListRecord*)getChild(n);
+        Record* child = getChild(n);
-        if (pSVertexList && pSVertexList->isOfType(VERTEX_LIST_OP))
+        if (!child) continue;
-            return pSVertexList->getVertexPoolOffset(index);
+
+        if (child->isOfType(VERTEX_LIST_OP))
+        {
+            return ((VertexListRecord*)child)->getVertexPoolOffset(index);
+        }
+        else if (child->isOfType(MORPH_VERTEX_LIST_OP))
+        {
+            return ((MorphVertexListRecord*)child)->getVertexPoolOffset(index);
+        }
     }
 
     return 0;
@@ -188,9 +205,29 @@ int MorphVertexListRecord::numberOfVertices()
 }
 
 
+int MorphVertexListRecord::getVertexPoolOffset(int index)
+{
+    MorphVertexListTag *pSMorphVertexList = (MorphVertexListTag*)getData();
+
+    if ((index >= 0) && (index < numberOfVertices()))
+    {
+        return pSMorphVertexList->list[index].dwOffset0;
+    }
+
+    return 0;
+}
+
+
 void MorphVertexListRecord::endian()
 {
-    //    SMorphVertexList *pSMorpVertexList = (SMorphVertexList*)getData();
+    SMorphVertexList *pSMorpVertexList = (SMorphVertexList*)getData();
+    int  nNumberOfVertices = numberOfVertices();
+
+    for(int i=0; i < nNumberOfVertices; i++)
+    {
+        ENDIAN( pSMorpVertexList->list[i].dwOffset0 );
+        ENDIAN( pSMorpVertexList->list[i].dwOffset100 );
+    }
 }
 
 

src/osgPlugins/flt/FaceRecord.h

@@ -187,9 +187,14 @@ class VertexListRecord : public PrimNodeRecord
 
 typedef struct     MorphVertexListTag
 {
+    struct VertexPair
+    {
+        uint32      dwOffset0;      // Byte offset into vertex palette of the 0% vertex
+        uint32      dwOffset100;    // Byte offset into vertex palette of the 100% vertex
+    };
+
     SRecHeader    RecHeader;
-    uint32      dwOffset0;      // Byte offset into vertex palette of the 0% vertex
+    VertexPair list[1];
-    uint32      dwOffset100;    // Byte offset into vertex palette of the 100% vertex
 } SMorphVertexList;
 
 
@@ -209,6 +214,7 @@ class MorphVertexListRecord : public PrimNodeRecord
         virtual SMorphVertexList* getData() const { return (SMorphVertexList*)_pData; }
 
         int numberOfVertices();
+        int getVertexPoolOffset(int index);
 
     protected:
         virtual ~MorphVertexListRecord();

src/osgPlugins/flt/flt2osg.cpp

@@ -995,8 +995,6 @@ osg::Group* ConvertFromFLT::visitLightSource(osg::Group& osgParent, LightSourceR
     osg::LightSource* lightSource = new osg::LightSource();
 
     osg::Light* pLight = pLightPool->getLight( pLSource->diIndex );
-    if ( pLight==NULL ) return NULL;
-    
     osg::Light* light = new osg::Light( *pLight );
 
     light->setPosition( osg::Vec4(
@@ -2037,6 +2035,10 @@ int ConvertFromFLT::addVertices(GeoSetBuilder* pBuilder, osg::Group& osgParent,
             vertices += visitVertexList(pBuilder, (VertexListRecord*)child);
             break;
         
+        case MORPH_VERTEX_LIST_OP:
+            vertices += visitMorphVertexList(pBuilder, (MorphVertexListRecord*)child);
+            break;
+        
         case LOCAL_VERTEX_POOL_OP:
             vertices += visitLocalVertexPool(pBuilder, (LocalVertexPoolRecord *)child);
             break;
@@ -2201,6 +2203,66 @@ int ConvertFromFLT::visitVertexList(GeoSetBuilder* pBuilder, VertexListRecord* r
 }
 
 
+int ConvertFromFLT::visitMorphVertexList(GeoSetBuilder* pBuilder, MorphVertexListRecord* rec)
+{
+    DynGeoSet* dgset = pBuilder->getDynGeoSet();
+    int vertices = rec->numberOfVertices();
+
+    DPRINT(stderr, ">>> visitVertexList...%d vertices\n", vertices) ;
+    // Add vertices to GeoSetBuilder
+    for (int j=0; j < vertices; j++)
+    {
+        Record* vertex = getVertexFromPool(rec->getVertexPoolOffset(j));
+        if (vertex)
+            addVertex(pBuilder, vertex);
+    }
+
+    // Visit ancillary records
+    for(int i=0; i < rec->getNumChildren(); i++)
+    {
+        Record* child = rec->getChild(i);
+    CERR << "OPCODE: " << child->getOpcode() << "\n";
+        
+        if (!child->isAncillaryRecord())
+            break;
+
+    switch (child->getOpcode())
+    {
+        case UV_LIST_OP:
+        {
+            UVListRecord* uvr =
+            dynamic_cast<UVListRecord*>(child);
+            assert( uvr );
+            addUVList( dgset, uvr );
+        }
+        break;
+        case MULTI_TEXTURE_OP:
+        {
+            CERR2 << "MULTI_TEXTURE_OP in visitVertexList\n";
+            MultiTextureRecord* mtr =
+            dynamic_cast<MultiTextureRecord*>(child);
+            assert( mtr );
+            addMultiTexture( dgset, mtr );
+        }
+        break;
+        default:
+
+        #ifdef _DEBUG
+
+        osg::notify( osg::NOTICE )
+            << "flt::ConvertFromFLT::visitVertexList: "
+            << "Unhandled opcode: " << child->getOpcode() << "\n";
+
+        #endif
+
+        break;
+    }
+    }
+
+    return vertices;
+}
+
+
 // Return 1 if record is a known vertex record else return 0.
 int ConvertFromFLT::addVertex(DynGeoSet* dgset, Record* rec)
 {

src/osgPlugins/flt/flt2osg.h

@@ -52,6 +52,7 @@ class LightPointRecord;
 class LightPointIndexRecord;
 class LightPointSystemRecord;
 class VertexListRecord;
+class MorphVertexListRecord;
 class LocalVertexPoolRecord;
 class LongIDRecord;
 class CommentRecord;
@@ -167,6 +168,7 @@ class ConvertFromFLT
         void visitLightPointIndex(osg::Group& osgParent, LightPointIndexRecord* rec);
         osg::Group* visitLightPointSystem(osg::Group& osgParent, LightPointSystemRecord* rec);
         int  visitVertexList(GeoSetBuilder* pParent, VertexListRecord* rec);
+        int  visitMorphVertexList(GeoSetBuilder* pParent, MorphVertexListRecord* rec);
         int  visitLocalVertexPool(GeoSetBuilder* pBuilder, LocalVertexPoolRecord* rec);