Initial revision

src/osg/Transparency.cpp

@@ -0,0 +1,46 @@
+#include "osg/OSG"
+#include "osg/Transparency"
+
+using namespace osg;
+
+Transparency::Transparency( void )
+{
+    _source_factor      = SRC_ALPHA;
+    _destination_factor = ONE_MINUS_SRC_ALPHA;
+}
+
+
+Transparency::~Transparency( void )
+{
+}
+
+
+Transparency* Transparency::instance()
+{
+    static ref_ptr<Transparency> s_transparency(new Transparency);
+    return s_transparency.get();
+}
+
+void Transparency::enable( void )
+{
+    glEnable( GL_BLEND );
+}
+
+
+void Transparency::disable( void )
+{
+    glDisable( GL_BLEND );
+}
+
+
+void Transparency::apply( void )
+{
+    glBlendFunc( (GLenum)_source_factor, (GLenum)_destination_factor );
+}
+
+
+void Transparency::setFunction( int source, int destination )
+{
+    _source_factor = source;
+    _destination_factor = destination;
+}