Thanks Howard, yeah I have written a plugin that can do this all live
and fast but this needs to be python as it needs to be embedded inside
another node. nuke.sample() is slow but seems to be the only way to go
so I'll probably have to not run in live and treat it as something that
needs to analyse a sequence like other slow tools.
Cheers,
Steve
Howard Jones wrote:
Ben Pierre wrote this -
http://www.nukepedia.com/plugins/colour/imagetool/
works live as well but wont return pixel position
Howard
------------------------------------------------------------------------
*From:* Stephen Newbold <[email protected]>
*To:* Nuke Python discussion <[email protected]>
*Sent:* Thursday, 12 July 2012, 15:00
*Subject:* Re: [Nuke-python] Max velocity from a scan line
Hmm, not really as I say it needs to be in a self-contained python
script embedded in the scanline renderer itself. You can get a
decent 'live' min/max using the dilate/erode trick or just write a
custom plugin to do this nice and fast but I can't go there for this.
Steve
Hugo Léveillé wrote:
> Lazy answer but would using to curve tool to extract max data be an
> option instead of looping pixels?
>
> On Thu, Jul 12, 2012, at 13:46, Stephen Newbold wrote:
>
>> Hi, I have a tool that needs to obtain the maximum velocity
value from a scanline renderer. Currently I am finding the max
pixel value of the motion channel generated by the scanline
renderer by iterating through each pixel of the motion channel and
returning the max(). A basic but inaccurate optimisation is to
skip x pixels to speed this up but I was hoping there might be a
more cunning way of doing this?
>>
>> I'm presuming the Scanline Renderer itself doesn't store
min/max velocities in a hidden knob or something else accessible?
>>
>> I was hoping to keep this process live and contained in an
embedded python script, so using NDK or a node tree (dilate to
value of width of image worked well enough if I went this method)
so any suggestions are welcome.
>>
>> Steve
>>
>> -- Stephen Newbold
>> Compositing Lead - Film
>> MPC
>> 127 Wardour Street
>> Soho, London, W1F 0NL
>> Main - + 44 (0) 20 7434 3100
>> www.moving-picture.com
>>
>> _______________________________________________
>> Nuke-python mailing list
>> [email protected]
<mailto:[email protected]>,
http://forums.thefoundry.co.uk/
>>
http://support.thefoundry.co.uk/cgi-bin/mailman/listinfo/nuke-python
>>
>
>
>
-- Stephen Newbold
Compositing Lead - Film
MPC
127 Wardour Street
Soho, London, W1F 0NL
Main - + 44 (0) 20 7434 3100
www.moving-picture.com
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Nuke-python mailing list
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--
Stephen Newbold
Compositing Lead - Film
MPC
127 Wardour Street
Soho, London, W1F 0NL
Main - + 44 (0) 20 7434 3100
www.moving-picture.com
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