   multisample Texture
  Hi , when use multisample with texture I have to Create a multisample RT then render scene to the RT, and StretchRect the RT to a RT Texture; I wonder why d3d do not privide ability that "Create RT Texture with multisample enabled" so we can direct render the scene to the RT texture and avoid the StrechRect function   
  I suppose you're using D3D9. I do not remember it more, but D3D10 has this capability   ;  D3D9 can't do that automatically because it doesn't know when you want the multisampled surface resolved to the non-multisampled texture.   