YafaRay/Simple Preview

<render 
    camera_name="x_Camera" 
    AA_passes="1"
    <!-- a single AA pass is good enough to see what AA might do for your scene at a higher level -->

    raydepth="5"
    <!-- 5 gives a good impression, although black areas might appear -->

    bias="0.1000000000" 
    AA_threshold="0.125"
    AA_minsamples="2" 
    AA_pixelwidth="1.0"
    AA_jitterfirst="on" 
    clamp_rgb="off">
  <background_name value="x_ConstBackground"/>
  <outfile value="preview_render.tga"/>
  <indirect_samples value="0"/>
  <indirect_power value="1.0"/>
  <exposure value="1.41421"/>
  <gamma value="1.0"/>
  <fog_density value="0.0"/>
  <fog_color r="1.0" g="1.0" b="1.0"/>
</render>