   how to set the texture transformation matrix  for relection?????
  I use render to texture(not cubemap) make  reflection effect.I set these texture state when render the reflection plan.   lpDev->SetTextureStageState( 0, D3DTSS_TEXCOORDINDEX,   D3DTSS_TCI_CAMERASPACEPOSITION );lpDev->SetTextureStageState( 0, D3DTSS_TEXTURETRANSFORMFLAGS,    D3DTTFF_PROJECTED|D3DTTFF_COUNT3 );lpDev->GetTransform( D3DTS_PROJECTION, &matProj );lpDev->SetTransform( D3DTS_TEXTURE0, &matProj );....when render to texture,I    D3DXMatrixPerspectiveFovLH( &matProj, D3DXToRadian(45), 1, 1, 10000 );lpDev->SetTransform( D3DTS_PROJECTION, &matProj );then reflect the world ,render to texture.where is the error???i hope correct step.thx 
  up 