Hey Pat, glad that you liked "HELP", I worked on it as a 2D TD and Compositor. In our case we ended up comping a lot in Latlong space. It works for a lot of cases and you get used to it pretty quickly. We also had tools that allowed us to quickly check things in a rectilinear view(similiar to a cube face) or move it from one image space to the other. Additionally we used quite a bit of projections which worked really well. Yes shifting it around with a spherical transform is also an option we used. Just keep in mind, that any transformation will most likely be a filter hit, and therefore soften your plate.
cheers, Patrick On 28.06.2015, at 07:21, Pat Wong <[email protected]> wrote: > > > > On 28 June 2015 at 15:04, Pat Wong <[email protected]> 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 <[email protected]> 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 <[email protected]> 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 > > _______________________________________________ > Nuke-users mailing list > [email protected], http://forums.thefoundry.co.uk/ > http://support.thefoundry.co.uk/cgi-bin/mailman/listinfo/nuke-users > > > _______________________________________________ > 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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