I tend to use hypot.  It blends feathers and blurred edges better when they
overlap.  over/screen/union give that weird blending edge.  Max is ok, but
you get a crease so it depends how much dilate/eroding your doing to it
after.  Hypot is nice and smooth.

-deke

On Wed, Aug 24, 2011 at 05:49, Hugh Macdonald <[email protected]>wrote:

> Screen does to all the channels exactly the same as Over does to the alpha.
>
>  Hugh Macdonald
> *n**vizible** – VISUAL EFFECTS
> *
> [email protected]
> +44(0) 20 3167 3860
> +44(0) 7773 764 708
>
> www.nvizible.com
>
> On 24 Aug 2011, at 10:12, jack wrote:
>
> Hi john
>
> If I screen also its same way , I tried all merge operations
>
> Thanks
> Jack
>
> On 8/24/11, jack <[email protected]> wrote:
>
> Hi nuke users
>
>
> I am facing a small issue while two mattes merge .
>
>
> I got this mattes from silhouette and I am merging two mattes , but
>
> the result is while I compare with shake over and nuke merge there is
>
> difference for both
>
>
> Shake is giving good and correct result, if I do same thing in nuke
>
> the matte is not correctly merged its giving little extra matte if we
>
> compare with shake
>
>
> Can any one give the solution for this ,
>
>
> Thanks
>
> jack
>
>
> --
>
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>
>
>
> --
> Sent from my mobile device
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<<attachment: over_screen_matte.jpg>>

<<attachment: plus.jpg>>

<<attachment: hypot.jpg>>

<<attachment: max.jpg>>

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