   Problem with DrawPrimitive
  Hello guys, is me again :(This is another problem from DrawPrimitiveI want to do the following steps:1. render a Mesh from X file2. draw basic rectangle by using drawPrimitive function3. render another Mesh from X fileMy problem is actually because of the // Set the vertex stream for the modelpd3dDevice->SetStreamSource( 0, pd3dVB, 0, sizeof(sVertex) );// Set the vertex formatpd3dDevice->SetFVF( VERTEX_FVF );Previously I did ask before, if u render a mesh from x file after you have SetStreamSource then end up all the meshes will be spoiled. So I wanna ask that what's the function to set back the StreamSource or SetFVF back to the default which allows me to render another meshes ?   