Added ability to populate a local vertex cache for when one computes final vertex position in a vertex shader but still want to the Primitive functors to work with the transformed positions.

git-svn-id: http://svn.openscenegraph.org/osg/OpenSceneGraph/trunk@14655 16af8721-9629-0410-8352-f15c8da7e697

include/osg/PrimitiveSet

@@ -119,6 +119,14 @@ public:
 
     /// Mimics the OpenGL \c glEnd() function.
     virtual void end() = 0;
+
+    void useVertexCacheAsVertexArray()
+    {
+        setVertexArray(_vertexCache.size(),&_vertexCache.front());
+    }
+
+    std::vector<Vec3>   _vertexCache;
+    bool                _treatVertexDataAsTemporary;
 };
 
 class PrimitiveIndexFunctor
@@ -143,6 +151,14 @@ public:
     virtual void begin(GLenum mode) = 0;
     virtual void vertex(unsigned int pos) = 0;
     virtual void end() = 0;
+
+    void useVertexCacheAsVertexArray()
+    {
+        setVertexArray(_vertexCache.size(),&_vertexCache.front());
+    }
+
+    std::vector<Vec3>   _vertexCache;
+    bool                _treatVertexDataAsTemporary;
 };
 
 class DrawElements;

include/osg/TemplatePrimitiveFunctor

@@ -307,8 +307,6 @@ namespace osg {
         const Vec3*         _vertexArrayPtr;
 
         GLenum              _modeCache;
-        std::vector<Vec3>   _vertexCache;
-        bool                _treatVertexDataAsTemporary;
     };
 
 

include/osg/TriangleFunctor

@@ -387,8 +387,6 @@ protected:
     const Vec3*         _vertexArrayPtr;
 
     GLenum              _modeCache;
-    std::vector<Vec3>   _vertexCache;
-    bool                _treatVertexDataAsTemporary;
 };