On 28 June 2015 at 15:04, Pat Wong <patwon...@gmail.com> wrote:

> Deke
>
> Thanks for the reply, yes ive seen these Videos before and whilst i
> believe the techniques in the video will work for most situations where the
> camera is locked off, Things tend to get a bit more complicated when the
> camera plate is moving and there are subjects in the shot,
>
>
> On 28 June 2015 at 01:26, Deke Kincaid <d...@thefoundry.co.uk> wrote:
>
>> Pat, to answer your question the workflow with the existing nuke tools
>> either:
>
> 1. breaking the latlong images into six packs with the sphericalTransform
>> node. Fix in cubic, then reconvert back to latlong.
>>
>
>
> How do you deal with this if an object that needs to be removed travels
> along multiple packs. Logically i assume you'd just tile up the six packs
> and deal with it that way, But the image dimensions might end up
> potentially large...
>


Laying the cube maps into a horizontal cross pattern like this eg.
http://wiki.polycount.com/wiki/Cube_map

objects crossing the seams from the UP cube diagonally to FRONT cube i can
see that as a potential  problem, how would one deal with that?








>
>
>
> 2.mapping the latlong onto a sphere and then projecting images onto the
>> sphere to patch and fix images.
>>
>>
>
> Would  projecting onto a sphere would result in a lack of parrallax? so im
> guessing you might need geo of the scene ideally?
>
>
> Pat
>
>
>
>
>
>> Frank Reuter did some videos 4 years ago showing some of these
>> workflows on making HDR's which is exactly the same as working with VR.
>> Also he has some nice stitching with cards videos in there.
>>
>> https://vimeo.com/album/2567386
>>
>> On Saturday, June 27, 2015, Pat Wong <patwon...@gmail.com> wrote:
>>
>>> Any of you Nukers on the forums like to share any tips or experiences
>>> for Comping in LatLong Space.
>>>
>>>  Its a new exciting arena. One in which i just delving into...Ive just
>>> seen the google stories specifically 'HELP' with its comped 3d Lizard and
>>> it looked great.
>>>
>>>
>>> I've also seen the recent Nuke tech demo at NAB this year and can see
>>> the people are still developing techniques to how to actually use the more
>>> traditional 2D comp tricks in this LatLong distorted space.
>>>
>>>
>>> 1. Rig removals are a case in point, is the best way to do to tackle
>>> these spherical transform the rig into the less distrorted central region
>>> and then rotate it back to its orginal or is their a better way. If this
>>> region needs to be tracked.. how do you approach this?
>>>
>>>
>>> 2. stabilizing plates. whats the best approach?
>>>
>>> 3. The LatLong blue that the Foundry demo'd in the Blink Script was
>>> interesting as the blur strength was obviously stronger at different parts
>>> of of the distorted plate.
>>>
>>> This lead me to think could we somehow use a sphercial distortion map
>>> for all our nodes or a utilize a STMAP UV map in some way.
>>>
>>>
>>> It would be good to hear from other peoples experience with comping in
>>> his LatLong Space , on what TO DO and NOT TO DO.
>>>
>>>
>>>
>>> cheers
>>>
>>> pat wong
>>>
>>>
>>>
>>
>> --
>> -----
>> Deke Kincaid
>> M&E OEM Development Manager
>> The Foundry
>> Mobile: (310) 883 4313
>> Tel: (310) 399 4555 - Fax: (310) 450 4516
>>
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>>
>
>
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