Double shadow, just one light?

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  06 June 2013
Double shadow, just one light?

Hi, a small simple question: I am trying to render just a shadow to composite it somewhere else using a background shader. I have just one directional light, casting a diagonal shadow, however, it is rendering as well a pararel shadow (as if I had a second light in there, which I dont) could someone give me a clue of what am I doing wrong?
 
  06 June 2013
Can you post us a sample render? It's difficult to visualize your issue, maybe an image would help?
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  06 June 2013
Hi there,
Ive just realised what it was. The shader had a small reflection, which looked like a second shadow on the alpha channel. Thanks anyways!
 
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