user2266: 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

user2266: Okay, this tutorial answered my question and provides a workaround.

2266: <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>
 2266: <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>
