diff --git a/saco/d3d9/common/DXUTmisc.h b/saco/d3d9/common/DXUTmisc.h
index 8017693..55699c1 100644
--- a/saco/d3d9/common/DXUTmisc.h
+++ b/saco/d3d9/common/DXUTmisc.h
@@ -18,9 +18,32 @@ class CGrowableArray
 {
 public:
     CGrowableArray()  { m_pData = NULL; m_nSize = 0; m_nMaxSize = 0; }
+    CGrowableArray( const CGrowableArray<TYPE>& a ) { for( int i=0; i < a.m_nSize; i++ ) Add( a.m_pData[i] ); }
     ~CGrowableArray() { RemoveAll(); }
 
+    const TYPE& operator[]( int nIndex ) const { return GetAt( nIndex ); }
+    TYPE& operator[]( int nIndex ) { return GetAt( nIndex ); }
+   
+    CGrowableArray& operator=( const CGrowableArray<TYPE>& a ) { if( this == &a ) return *this; RemoveAll(); for( int i=0; i < a.m_nSize; i++ ) Add( a.m_pData[i] ); return *this; }
+
     HRESULT SetSize( int nNewMaxSize );
+    HRESULT Add( const TYPE& value );
+    HRESULT Insert( int nIndex, const TYPE& value );
+    HRESULT SetAt( int nIndex, const TYPE& value );
+    TYPE&   GetAt( int nIndex ) { assert( nIndex >= 0 && nIndex < m_nSize ); return m_pData[nIndex]; }
+    int     GetSize() const { return m_nSize; }
+    TYPE*   GetData() { return m_pData; }
+    bool    Contains( const TYPE& value ){ return ( -1 != IndexOf( value ) ); }
+
+    int     IndexOf( const TYPE& value ) { return ( m_nSize > 0 ) ? IndexOf( value, 0, m_nSize ) : -1; }
+    int     IndexOf( const TYPE& value, int iStart ) { return IndexOf( value, iStart, m_nSize - iStart ); }
+    int     IndexOf( const TYPE& value, int nIndex, int nNumElements );
+
+    int     LastIndexOf( const TYPE& value ) { return ( m_nSize > 0 ) ? LastIndexOf( value, m_nSize-1, m_nSize ) : -1; }
+    int     LastIndexOf( const TYPE& value, int nIndex ) { return LastIndexOf( value, nIndex, nIndex+1 ); }
+    int     LastIndexOf( const TYPE& value, int nIndex, int nNumElements );
+
+    HRESULT Remove( int nIndex );
     void    RemoveAll() { SetSize(0); }
 
 protected:
@@ -134,4 +157,156 @@ HRESULT CGrowableArray<TYPE>::SetSize( int nNewMaxSize )
 }
 
 
+//--------------------------------------------------------------------------------------
+template< typename TYPE >
+HRESULT CGrowableArray<TYPE>::Add( const TYPE& value )
+{
+    HRESULT hr;
+    if( FAILED( hr = SetSizeInternal( m_nSize + 1 ) ) )
+        return hr;
+
+    // Construct the new element
+    ::new (&m_pData[m_nSize]) TYPE;
+
+    // Assign
+    m_pData[m_nSize] = value;
+    ++m_nSize;
+
+    return S_OK;
+}
+
+
+//--------------------------------------------------------------------------------------
+template< typename TYPE >
+HRESULT CGrowableArray<TYPE>::Insert( int nIndex, const TYPE& value )
+{
+    HRESULT hr;
+
+    // Validate index
+    if( nIndex < 0 || 
+        nIndex > m_nSize )
+    {
+        assert( false );
+        return E_INVALIDARG;
+    }
+
+    // Prepare the buffer
+    if( FAILED( hr = SetSizeInternal( m_nSize + 1 ) ) )
+        return hr;
+
+    // Shift the array
+    MoveMemory( &m_pData[nIndex+1], &m_pData[nIndex], sizeof(TYPE) * (m_nSize - nIndex) );
+
+    // Construct the new element
+    ::new (&m_pData[nIndex]) TYPE;
+
+    // Set the value and increase the size
+    m_pData[nIndex] = value;
+    ++m_nSize;
+
+    return S_OK;
+}
+
+
+//--------------------------------------------------------------------------------------
+template< typename TYPE >
+HRESULT CGrowableArray<TYPE>::SetAt( int nIndex, const TYPE& value )
+{
+    // Validate arguments
+    if( nIndex < 0 ||
+        nIndex >= m_nSize )
+    {
+        assert( false );
+        return E_INVALIDARG;
+    }
+
+    m_pData[nIndex] = value;
+    return S_OK;
+}
+
+
+//--------------------------------------------------------------------------------------
+// Searches for the specified value and returns the index of the first occurrence
+// within the section of the data array that extends from iStart and contains the 
+// specified number of elements. Returns -1 if value is not found within the given 
+// section.
+//--------------------------------------------------------------------------------------
+template< typename TYPE >
+int CGrowableArray<TYPE>::IndexOf( const TYPE& value, int iStart, int nNumElements )
+{
+    // Validate arguments
+    if( iStart < 0 || 
+        iStart >= m_nSize ||
+        nNumElements < 0 ||
+        iStart + nNumElements > m_nSize )
+    {
+        assert( false );
+        return -1;
+    }
+
+    // Search
+    for( int i = iStart; i < (iStart + nNumElements); i++ )
+    {
+        if( value == m_pData[i] )
+            return i;
+    }
+
+    // Not found
+    return -1;
+}
+
+
+//--------------------------------------------------------------------------------------
+// Searches for the specified value and returns the index of the last occurrence
+// within the section of the data array that contains the specified number of elements
+// and ends at iEnd. Returns -1 if value is not found within the given section.
+//--------------------------------------------------------------------------------------
+template< typename TYPE >
+int CGrowableArray<TYPE>::LastIndexOf( const TYPE& value, int iEnd, int nNumElements )
+{
+    // Validate arguments
+    if( iEnd < 0 || 
+        iEnd >= m_nSize ||
+        nNumElements < 0 ||
+        iEnd - nNumElements < 0 )
+    {
+        assert( false );
+        return -1;
+    }
+
+    // Search
+    for( int i = iEnd; i > (iEnd - nNumElements); i-- )
+    {
+        if( value == m_pData[i] )
+            return i;
+    }
+
+    // Not found
+    return -1;
+}
+
+
+
+//--------------------------------------------------------------------------------------
+template< typename TYPE >
+HRESULT CGrowableArray<TYPE>::Remove( int nIndex )
+{
+    if( nIndex < 0 || 
+        nIndex >= m_nSize )
+    {
+        assert( false );
+        return E_INVALIDARG;
+    }
+
+    // Destruct the element to be removed
+    m_pData[nIndex].~TYPE();
+
+    // Compact the array and decrease the size
+    MoveMemory( &m_pData[nIndex], &m_pData[nIndex+1], sizeof(TYPE) * (m_nSize - (nIndex+1)) );
+    --m_nSize;
+
+    return S_OK;
+}
+
+
 #endif