title: What units are available, world units, screen units?
body: <p>I am trying to understand different types of units in unity. When I create a canvas (UI) then I believe these are set to world units meaning (I think) - 1 unit = 1 pixel?</p>
  
  <p>I know by default my scene unit is 1 unit = 1 meter, what are these units called?</p>
  
  <p>I suppose I am getting confused with all the different types of units around.</p>
  
  <p>I know there are screen units, but how does this differ from world units ?</p>
  
  <p>Does anyone know where I can find a good explanation?</p>