Hello,
I would use a post-filter:
m_postfilterBW LoadShader = ("abstract :: postfilter.vert", "abstract :: postfilter_desaturate.frag");
In my loop I have this:
SetBuffer (m_Gbuffer);
UpdateFramework ();
RenderFramework ();
SetBuffer (backbuffer ());
SetShader (m_postfilterBW);
DrawImage (GetColorBuffer (m_Gbuffer), 0, GraphicsHeight (), GraphicsWidth (), GraphicsHeight-());
SetShader (0);
Flip();
but it does absolutely not what I hoped :-( !!!
Have you any idea?