Hi
Ok I thought I had tried this anyway but answering my own question
reversing (source) SRT and XYZ to
TRS and ZYX with negated values does it.
in one node
(I'm sure I tried that, I'm sure I did...)
Howard
>________________________________
>From: Howard Jones <mrhowardjo...@yahoo.com>
>To: Nuke user discussion <nuke-users@support.thefoundry.co.uk>
>Sent: Thursday, 11 August 2011, 13:03
>Subject: Re: [Nuke-users] Zeroing a camera position
>
>
>Ok managed to get to 2 nodes
>
>
>1) set back to origin in translate (easy)
>2) invert rotate order and negate rotation
>
>
>
>
>Howard
>
>
>
>>________________________________
>>From: Howard Jones <mrhowardjo...@yahoo.com>
>>To: Nuke user discussion <nuke-users@support.thefoundry.co.uk>
>>Sent: Thursday, 11 August 2011, 12:59
>>Subject: [Nuke-users] Zeroing a camera position
>>
>>
>>Hi
>>
>>
>>Easy when you know how I expect,
>>
>>but is there an easy way to null/zero a moving camera at a specific frame,
>>like a reference frame in a tracker.
>>
>>
>>At the moment I am using 4 axis to
>>
>>1) set back to origin in translate (easy)
>>2) rotate Z back
>>3) rotate Y back
>>4) rotate X back.
>>
>>
>>I then end up with a zero'd camera at that frame so I can add another axis to
>>match the position of another camera.
>>
>>
>>I've tried this in one node but cant do it and tried reversing transform/
>>rotate orders, but couldn't get it to work (yet)
>>
>>
>>The above works but seems awkward and makes me feel thick. (but is the 3D
>>equivalent of how I would invert a serise of tranforms pre the invert button)
>>Howard
>>
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>>
>>
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>
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