I forgot to add that in this scenario I would do a deep recolour with the UV remapped image onto the deep opacity it was extracted from, and then I get the transparency/AA back.
On 17 February 2016 at 19:20, Michael Garrett <[email protected]> wrote: > Thanks for bringing up deep UV maps again Frank. I am so looking forward > to being able to do true deep camera projection with just a deep opacity > image and Nuke camera as the input! > > I know some places have the tools, but as a workaround with some of the > benefits, I've deep unpremulted the opacity out, flattened it then used a > regular STMap node. This saves the need for an unfiltered data pass. Then I > added the motion blur back in with VectorBlur, using the flattened deep > opacity as my Zdepth source. > > > > On 17 February 2016 at 18:36, Frank Rueter|OHUfx <[email protected]> wrote: > >> which isn't always possible. Think about a rotating head where the nose >> occludes parts of the cheeks etc. >> With the "flat" STMap you get nasty edges in those areas whereas a >> DeepSTMap could solve that (with the right image data coming in). >> >> >> On 18/02/16 12:34 pm, Ryan O'Phelan wrote: >> >> Wow, that would be a great solution. I suppose the alternative is to do >> each object UV separately and then comp them after the STmap. >> >> R >> >> On Wed, Feb 17, 2016 at 6:24 PM, Frank Rueter|OHUfx <[email protected]> >> wrote: >> >>> Slightly OT but somewhat related (especially to Ryan's post): >>> This is why a DeepUVMap node would be great. With that you can render >>> deep ST maps from whatever software and have high quality STMap workflow in >>> Nuke without any aliasing in areas where geo overlaps itself. >>> >>> >>> >>> On 18/02/16 12:15 pm, Ryan O'Phelan wrote: >>> >>> Maybe there's anti-aliasing on the edges? If we use UV maps, we make >>> sure there is no filter when rendered, or you will get junk on the edges. >>> >>> On Wed, Feb 17, 2016 at 5:52 PM, Daniel Stein < >>> <[email protected]>[email protected]> wrote: >>> >>>> What image format are you using? Mocha Pro will output 32-bit float >>>> distortion maps as long as you write to a format that supports it. I know >>>> Mocha supports tif/dpx for sure which would both work, I'd choose exr if it >>>> was available but haven't used Mocha in quite a while. >>>> >>>> The loss of precision at 16-bit may not seem like a big deal but it >>>> nearly always causes artifacts. >>>> >>>> Ripped straight from Imagineer systems documentation: >>>> >>>> Distortion maps must be 32 bit floats, so TIF or DPX will be the best >>>>> options >>>>> >>>> >>>> On 17 February 2016 at 16:40, Nick Guth < <[email protected]> >>>> [email protected]> wrote: >>>> >>>>> I've tried centering inside of mocha using it's 'calibrate center' >>>>> method, but it didn't seem to affect the image. Offsetting in nuke does >>>>> make it a tiny bit smoother, but I think that's because the image is being >>>>> filtered by the transform. Hmm. >>>>> >>>>> On Wed, Feb 17, 2016 at 1:19 PM, Elias Ericsson Rydberg < >>>>> <[email protected]>[email protected]> >>>>> wrote: >>>>> >>>>>> 16-bit does have a few bits less of precision (pun intended), but I >>>>>> wouldn't think it would cause aliasing. I haven't used mocha extensively, >>>>>> so I can only guess. It's not one of those cases where you have offset X >>>>>> and Y by 0.5 pixels or something? >>>>>> Den 17 feb 2016 8:49 em skrev "Nick Guth" < <[email protected]> >>>>>> [email protected]>: >>>>>> >>>>>>> Mocha seems to kick out 16bit distortion maps and I don't see any >>>>>>> options to up that 32bit. When I'm using the maps in nuke I get really >>>>>>> hard >>>>>>> aliased edges. Blurring the map 3 pixels seems to help a little. >>>>>>> >>>>>>> Anyone have luck with smooth transitions from mocha distortion maps? >>>>>>> >>>>>>> _______________________________________________ >>>>>>> Nuke-users mailing list >>>>>>> <[email protected]> >>>>>>> [email protected], >>>>>>> <http://forums.thefoundry.co.uk/>http://forums.thefoundry.co.uk/ >>>>>>> <http://support.thefoundry.co.uk/cgi-bin/mailman/listinfo/nuke-users> >>>>>>> http://support.thefoundry.co.uk/cgi-bin/mailman/listinfo/nuke-users >>>>>>> >>>>>> >>>>>> _______________________________________________ >>>>>> Nuke-users mailing list >>>>>> <[email protected]> >>>>>> [email protected], >>>>>> <http://forums.thefoundry.co.uk/>http://forums.thefoundry.co.uk/ >>>>>> <http://support.thefoundry.co.uk/cgi-bin/mailman/listinfo/nuke-users> >>>>>> http://support.thefoundry.co.uk/cgi-bin/mailman/listinfo/nuke-users >>>>>> >>>>> >>>>> >>>>> >>>>> -- >>>>> Nick Guth >>>>> motion . composite . design >>>>> www.nickguth.com >>>>> >>>>> _______________________________________________ >>>>> 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 >>>> >>> >>> >>> >>> _______________________________________________ >>> Nuke-users mailing [email protected], >>> http://forums.thefoundry.co.uk/http://support.thefoundry.co.uk/cgi-bin/mailman/listinfo/nuke-users >>> >>> >>> -- >>> [image: ohufxLogo 50x50] <http://www.ohufx.com> *vfx compositing >>> <http://ohufx.com/index.php/vfx-compositing> | workflow customisation and >>> consulting <http://ohufx.com/index.php/vfx-customising> * >>> >>> _______________________________________________ >>> 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 [email protected], >> http://forums.thefoundry.co.uk/http://support.thefoundry.co.uk/cgi-bin/mailman/listinfo/nuke-users >> >> >> -- >> [image: ohufxLogo 50x50] <http://www.ohufx.com> *vfx compositing >> <http://ohufx.com/index.php/vfx-compositing> | workflow customisation and >> consulting <http://ohufx.com/index.php/vfx-customising> * >> >> _______________________________________________ >> 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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