Try the old merge. Its mult does what it says on the tin:
set cut_paste_input [stack 0]
version 6.2 v4
push $cut_paste_input
Merge {
operation mult
name Merge1
selected true
xpos -9
ypos -190
}
On Mon, Jun 13, 2011 at 5:02 PM, Ben Pierre <[email protected]> wrote:
> Yes I can, and have read the manual.. I realise what the Merge() node
> does., yes I know the MergeExpression(), I just need a fast pow(x,2)
>
> Merge() is silly.. the operation should be named "multiply (positive
> only)"..
>
> in the help it should say "use another node for math" or "don't take the
> operation literally"
>
> :P
>
>
> On Mon, Jun 13, 2011 at 4:42 PM, Stephen Newbold <
> [email protected]> wrote:
>
>> Sorry, that should read A and B, not *either* A and B.
>>
>> Steve
>>
>>
>> Stephen Newbold wrote:
>>
>> I think Multiply returns A if either A and B are less than 0, or at least
>> this
>> is what the tooltip suggests. You can use the MergeExpression node to do
>> what
>> you need.
>>
>> Steve
>>
>> Ben Pierre wrote:
>> > hey all,
>> >
>> > I just plugged the same 3 channel, RGB image to both A & B inputs of a
>> > Merge(A,B) node, set operation to multiply....(ie: image^2).
>> >
>> > The image has both positive and negative values.... the result has both
>> > positive and negative values?!
>> >
>> > I feel like I've taken crazy pills!.. (I would expect all values to be
>> > positive)..... What kind of "Nuke try and help me out, without me
>> > asking..because I can't help myself" mathematics is going on here?
>> >
>> > -Ben Pierre
>> >
>> >
>> > --------------------------------------------------------------------------------
>> >
>> > _______________________________________________
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>> > [email protected], http://forums.thefoundry.co.uk/
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>>
>>
>> --
>> Stephen Newbold
>> Compositing Lead - Film
>> MPC
>> 127 Wardour Street
>> Soho, London, W1F 0NL
>> Main - + 44 (0) 20 7434 3100www.moving-picture.com
>>
>> ------------------------------
>>
>> _______________________________________________
>> Nuke-users mailing [email protected],
>> http://forums.thefoundry.co.uk/http://support.thefoundry.co.uk/cgi-bin/mailman/listinfo/nuke-users
>>
>>
>>
>> --
>> Stephen Newbold
>> Compositing Lead - Film
>> MPC
>> 127 Wardour Street
>> Soho, London, W1F 0NL
>> Main - + 44 (0) 20 7434 3100www.moving-picture.com
>>
>>
>> _______________________________________________
>> Nuke-users mailing list
>> [email protected], http://forums.thefoundry.co.uk/
>> http://support.thefoundry.co.uk/cgi-bin/mailman/listinfo/nuke-users
>>
>
>
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