<?xml version="1.0"?>

<!-- For sky particles, the size of the box is ignored -->
<particles emitter="sphere" radius="0.1">

    <spreading angle="5"           />
    
    <velocity  x="-0.000"
               y="0.002"
               z="-0.000"             />
    
    <material  file="smoke.png" clampu="Y" clampv="Y" />
    
    <!-- Amount of particles emitted per second -->
    <rate      min="5"
               max="10"           />
    
    <!-- Minimal and maximal lifetime of a particle, in milliseconds. -->
    <lifetime  min="100"
               max="300"          />
    
    <!-- Size of the particles -->
    <size min="0.2"
         max="0.5"
         x-increase-factor="1.6"
         y-increase-factor="1.6" /> 
    
    <color     min="40 40 255"
               max="255 255 255"   />

</particles>