Black Line caused by DirBlur Node

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  04 April 2013
Black Line caused by DirBlur Node

I am experiencing something strange with my particle simulation in Nuke. I am doing some rain by emitting particles from top to bottom and the blurring them vertically. The problem is, that a black horizontal line appears once in a while. Does somebody know how to fix this?


  04 April 2013
Without seeing the script it is hard to diagnose the problem. If I we're you I would send this to foundry support with the example script and a screen capture of the problem.
  04 April 2013
in your scanline render node, try increasing and playing around with the samples.
  05 May 2013
This only applies if you are using the DirBlur node, which it sounds like you are.

By defaiult it, the blur layter attribute is set to RGB only, notice that alpha is not ticked? Change this to RGBA and make sure alpha is ticked and this should solve the problem. I'mnot talking about the channels here, they are set to all by default.

To be totally honest, I'm not sure what the blur layer attribute is, I only know this workaround for the problem I think you are having.
  05 May 2013
Wow, that worked. Thank you very much.
  05 May 2013
Originally Posted by GreenGuy: Wow, that worked. Thank you very much.

No Problem mate, any time.
  05 May 2013
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