[Bf-compositor] use alpha premultiplication in linear Color Space?

[Francesco Paglia]

Hi, hope I used a right title for this topic.
I've just setup a simple nodegroup to make a fade node.
Here the tree:

https://lh4.googleusercontent.com/-Mos7IL6bx4E/Uz6VHnKqZ3I/AAAAAAAAI1U/zJJ7zOFnRWQ/w1176-h368-no/fade_nodesetup.png

As input of this group I've a renderlayer, if I'm not wrong the compositor
works with a linear workflow so why I have to add make alpha straight at
the beginning and a premultiply at the end to make it working properly?

Thanks for your help
Francesco

-- 
Francesco Paglia
Vfx and Production Supervisor

mobile  +39 347.82.12.473
e-mail   f.paglia.80 at gmail.com
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