Body: <p>I have some water splash elements I need to composite over log footage in After Effects before sending it to the colorist for grading.</p>
  <p>As I understand, the correct workflow is to convert the log footage with Cineon Converter to linear, composite the elements, and then I guess pre-compose everything and convert it <em>back</em> to log with Cineon Converter and export it?
  I'm not sure about this and all tutorials I could find are pretty vague.</p>
  <p>(For the output format I use Cineform 10-bit YUV).</p>
  <p>Thanks in advance!</p>
  
Comments.ContentLicense: CC BY-SA 4.0
Comments.CreationDate: 2020-12-10T02:46:32.907Z
Comments.Text: Ask the colorist if they'd prefer log or not. If you're exportign 10 bit yuv you should be ok without converting it. You could also export as say a 16-bit tiff sequence if you want to make sure that there's lots of room for grading.
Comments.UserDisplayName: stib
Comments.ContentLicense: CC BY-SA 4.0
Comments.CreationDate: 2020-12-11T11:15:19.437Z
Comments.Text: Thanks for the reply. I'll ask the colorist, but you're saying, in general, I don't need to convert it back to log at the end?
Comments.UserDisplayName: kurajber
Comments.ContentLicense: CC BY-SA 4.0
Comments.CreationDate: 2020-12-12T04:28:40.953Z
Comments.Text: No, it just adds extra processing. As long as what you output has a neutral grade and enough bit-depth to give the colourist the dynamic range to adjust it.
Comments.UserDisplayName: stib
Tags: <after-effects><colorspace><footage>
Title: Correctly compositing linear RGB elements over log footage
UserDisplayName: kurajber
ThreadText: # Correctly compositing linear RGB elements over log footage
  
  (Asked by: username_0 on 2020-12-04)
  
  I have some water splash elements I need to composite over log footage in After Effects before sending it to the colorist for grading.
  
  As I understand, the correct workflow is to convert the log footage with Cineon Converter to linear, composite the elements, and then I guess pre-compose everything and convert it *back* to log with Cineon Converter and export it?
  I'm not sure about this and all tutorials I could find are pretty vague.
  
  (For the output format I use Cineform 10-bit YUV).
  
  Thanks in advance!
  
  **Tags:** after-effects, colorspace, footage
  
  > **Comments:**
  > **username_1**: Ask the colorist if they'd prefer log or not. If you're exportign 10 bit yuv you should be ok without converting it. You could also export as say a 16-bit tiff sequence if you want to make sure that there's lots of room for grading.  
  > **username_0**: Thanks for the reply. I'll ask the colorist, but you're saying, in general, I don't need to convert it back to log at the end?  
  > **username_1**: No, it just adds extra processing. As long as what you output has a neutral grade and enough bit-depth to give the colourist the dynamic range to adjust it.  
  
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  ## 0 answers
  
  