Answers.Body: <p>Okay, <a href="http://www.fxguide.com/featured/After_Effects_32-bit_Workflow_In-Depth/" rel="nofollow">this tutorial</a> answered my question and provides a workaround.</p>
  
Answers.ContentLicense: CC BY-SA 3.0
Answers.CreationDate: 2012-04-29T04:04:39.813Z
Answers.Text: Whilst this may theoretically answer the question, [it would be preferable](http://meta.stackexchange.com/q/8259) to include the essential parts of the answer here, and provide the link for reference. Thank you!
Answers.UserDisplayName: daviesgeek
Answers.ContentLicense: CC BY-SA 3.0
Answers.CreationDate: 2014-03-22T02:23:12.473Z
Answers.Text: I second the motion!
Answers.UserDisplayName: Craig
Answers.ContentLicense: CC BY-SA 3.0
Answers.CreationDate: 2012-04-23T14:09:43.090Z
Answers.LastActivityDate: 2012-04-30T13:31:16.540Z
Answers.LastEditDate: 2012-04-30T13:31:16.540Z
Answers.UserDisplayName: Mat
Body: <p>I have a .hdr sequence as well as a .tga sequence. the .tga sequence contains the alpha channel to be used for the .hdr sequence.</p>
  
  <p>The problem is that if I apply the alpha channel to my hdr sequence using Set Matte or Set Channel, then the color values of my hdr sequence get clamped to 0-1.</p>
  
  <p>How can I mask my hdr sequence without losing the hdr range?</p>
  
  <p>using After Effects CS5</p>
  
Tags: <after-effects>
Title: After Effects: Set Alpha/Matte to hdr layer without clamping the values to 0-1 range
UserDisplayName: Mat
ThreadText: # After Effects: Set Alpha/Matte to hdr layer without clamping the values to 0-1 range
  
  (Asked by: username_0 on 2012-04-22)
  
  I have a .hdr sequence as well as a .tga sequence. the .tga sequence contains the alpha channel to be used for the .hdr sequence.
  
  The problem is that if I apply the alpha channel to my hdr sequence using Set Matte or Set Channel, then the color values of my hdr sequence get clamped to 0-1.
  
  How can I mask my hdr sequence without losing the hdr range?
  
  using After Effects CS5
  
  **Tags:** after-effects
  
  
  ---
  
  ## 1 answers
  
  ### Answer by username_0 on 2012-04-23. Score: 1
  
  Okay, [this tutorial](http://www.fxguide.com/featured/After_Effects_32-bit_Workflow_In-Depth/) answered my question and provides a workaround.
  
  > **Comments:**
  > **username_1**: Whilst this may theoretically answer the question, [it would be preferable](http://meta.stackexchange.com/q/8259) to include the essential parts of the answer here, and provide the link for reference. Thank you!  
  > **username_2**: I second the motion!  
  
  ---
  
  