Re: [Nuke-users] Remove chromatic aberration
On 27.9.2011 6:08, Darren Coombes wrote: I have a shot with some heavy aberration that's red/cyan in color and it's affecting my key on a blue screen. Is there a way to shift the color channels and make the aberration less prominent? As a simple solution, you could download some of the chromatic aberration gizmos out there, and try them with negative values. eetu. ___ Nuke-users mailing list Nuke-users@support.thefoundry.co.uk, http://forums.thefoundry.co.uk/ http://support.thefoundry.co.uk/cgi-bin/mailman/listinfo/nuke-users
Re: [Nuke-users] Remove chromatic aberration
Ok, so I hate to sound like a dumbass, but once I've shuffled the R, G, and B channels , what's the best way to merge them back together to form an rgb image? Darren Coombes darren.coom...@me.com 0418 631 079 On 27/09/2011, at 3:30 PM, Deke Kincaid dekekinc...@gmail.com wrote: Sometimes I will individually lensDistort the r,g,b, channels. There isn't a channel knob on it though so you have to do them separately and remerge them. Also sometimes basic scale/transforms on individual channels will work. -deke On Mon, Sep 26, 2011 at 20:15, John Mangia j...@johnmangia.com wrote: If you have the full Furnace suite you can try F_ChannelRepair. If you don't have furnace, you can try translating the color channels individually through a radial grad using a transform masked node to re-align the color channels. On Mon, Sep 26, 2011 at 9:08 PM, Darren Coombes dar...@resolutiondesign.com.au wrote: I have a shot with some heavy aberration that's red/cyan in color and it's affecting my key on a blue screen. Is there a way to shift the color channels and make the aberration less prominent? Thanks. Darren Coombes darren.coom...@me.com 0418 631 079___ Nuke-users mailing list Nuke-users@support.thefoundry.co.uk, http://forums.thefoundry.co.uk/ http://support.thefoundry.co.uk/cgi-bin/mailman/listinfo/nuke-users -- John Mangia 908.616.1796 j...@johnmangia.com ___ Nuke-users mailing list Nuke-users@support.thefoundry.co.uk, http://forums.thefoundry.co.uk/ http://support.thefoundry.co.uk/cgi-bin/mailman/listinfo/nuke-users ___ Nuke-users mailing list Nuke-users@support.thefoundry.co.uk, http://forums.thefoundry.co.uk/ http://support.thefoundry.co.uk/cgi-bin/mailman/listinfo/nuke-users ___ Nuke-users mailing list Nuke-users@support.thefoundry.co.uk, http://forums.thefoundry.co.uk/ http://support.thefoundry.co.uk/cgi-bin/mailman/listinfo/nuke-users
Re: [Nuke-users] Remove chromatic aberration
Tidiest way I'm aware of is:
set cut_paste_input [stack 0]
version 6.3 v2
CheckerBoard2 {
inputs 0
name CheckerBoard1
selected true
xpos -150
ypos -65
}
Blur {
name Blur3
tile_color 0xff00
selected true
xpos -150
ypos 7
}
set N16985a20 [stack 0]
Blur {
size 2
name Blur1
tile_color 0xff
selected true
xpos -55
ypos 36
}
set N12f722e0 [stack 0]
Blur {
size 5
name Blur2
tile_color 0xff00
selected true
xpos -55
ypos 128
}
push $N12f722e0
push $N16985a20
Copy {
inputs 2
from0 rgba.green
to0 rgba.green
name Copy1
selected true
xpos -150
ypos 79
}
Copy {
inputs 2
from0 rgba.blue
to0 rgba.blue
name Copy2
selected true
xpos -150
ypos 162
}
Darren Coombes wrote:
Ok, so I hate to sound like a dumbass, but once I've shuffled the R, G, and B
channels , what's the best way to merge them back together to form an rgb image?
Darren Coombes
darren.coom...@me.com
0418 631 079
On 27/09/2011, at 3:30 PM, Deke Kincaid dekekinc...@gmail.com wrote:
Sometimes I will individually lensDistort the r,g,b, channels. There
isn't a channel knob on it though so you have to do them separately
and remerge them.
Also sometimes basic scale/transforms on individual channels will work.
-deke
On Mon, Sep 26, 2011 at 20:15, John Mangia j...@johnmangia.com wrote:
If you have the full Furnace suite you can try F_ChannelRepair. If you
don't have furnace, you can try translating the color channels individually
through a radial grad using a transform masked node to re-align the color
channels.
On Mon, Sep 26, 2011 at 9:08 PM, Darren Coombes
dar...@resolutiondesign.com.au wrote:
I have a shot with some heavy aberration that's red/cyan in color and it's
affecting my key on a blue screen. Is there a way to shift the color
channels and make the aberration less prominent?
Thanks.
Darren Coombes
darren.coom...@me.com
0418 631 079___
Nuke-users mailing list
Nuke-users@support.thefoundry.co.uk, http://forums.thefoundry.co.uk/
http://support.thefoundry.co.uk/cgi-bin/mailman/listinfo/nuke-users
--
John Mangia
908.616.1796
j...@johnmangia.com
___
Nuke-users mailing list
Nuke-users@support.thefoundry.co.uk, http://forums.thefoundry.co.uk/
http://support.thefoundry.co.uk/cgi-bin/mailman/listinfo/nuke-users
___
Nuke-users mailing list
Nuke-users@support.thefoundry.co.uk, http://forums.thefoundry.co.uk/
http://support.thefoundry.co.uk/cgi-bin/mailman/listinfo/nuke-users
___
Nuke-users mailing list
Nuke-users@support.thefoundry.co.uk, http://forums.thefoundry.co.uk/
http://support.thefoundry.co.uk/cgi-bin/mailman/listinfo/nuke-users
--
ben dickson
2D TD | ben.dick...@rsp.com.au
rising sun pictures | www.rsp.com.au
___
Nuke-users mailing list
Nuke-users@support.thefoundry.co.uk, http://forums.thefoundry.co.uk/
http://support.thefoundry.co.uk/cgi-bin/mailman/listinfo/nuke-users
Re: [Nuke-users] Remove chromatic aberration
On 27.9.2011 13:22, Darren Coombes wrote: Ok, so I hate to sound like a dumbass, but once I've shuffled the R, G, and B channels , what's the best way to merge them back together to form an rgb image? You surely do know this, but for quite a many operations you do not need to shuffle things out and back in - you can e.g. transform the color channels separately by just having the transform(masked) nodes in the main pipe and tick the channels you want to scale. The Nuke way. :) eetu. ___ Nuke-users mailing list Nuke-users@support.thefoundry.co.uk, http://forums.thefoundry.co.uk/ http://support.thefoundry.co.uk/cgi-bin/mailman/listinfo/nuke-users
Re: [Nuke-users] Remove chromatic aberration
Geez, that worked. So simple. Last 2 days have been loongg. So heads not to clear at moment. Thanks. Darren Coombes darren.coom...@me.com 0418 631 079 On 27/09/2011, at 8:37 PM, Eetu Martola e...@undo.fi wrote: On 27.9.2011 13:22, Darren Coombes wrote: Ok, so I hate to sound like a dumbass, but once I've shuffled the R, G, and B channels , what's the best way to merge them back together to form an rgb image? You surely do know this, but for quite a many operations you do not need to shuffle things out and back in - you can e.g. transform the color channels separately by just having the transform(masked) nodes in the main pipe and tick the channels you want to scale. The Nuke way. :) eetu. ___ Nuke-users mailing list Nuke-users@support.thefoundry.co.uk, http://forums.thefoundry.co.uk/ http://support.thefoundry.co.uk/cgi-bin/mailman/listinfo/nuke-users ___ Nuke-users mailing list Nuke-users@support.thefoundry.co.uk, http://forums.thefoundry.co.uk/ http://support.thefoundry.co.uk/cgi-bin/mailman/listinfo/nuke-users
Re: [Nuke-users] Remove chromatic aberration
sounds like you got it, but just adding a little template I made to
the thread. it depends on having a grid for the shot, and I know
that's a luxury not many people have, but it does seem to be becoming
more common.
it zaps CA by undistorting, bumping the offending channels and then
rewarping. It's just the thing for our stuff but I imagine CA varies
greatly between setups.
with the cam setup we use, it's been hard to profile lenses and pin
down a consistent formula - the lighting, focus, etc all play into it,
so I just gave up and decided I wanted grids every time. can't go
wrong.
if I recall, the Genesis setup that the last film I worked on was
using, there was a channel mismatch that wasn't necessarily CA - which
made things interesting! it wasn't a lens thing but a sensor thing
where the red channel just had to be scaled to 1.0045 or something
like that for everything to line up.
some bizarro stuff floating around out there that makes pulling keys
interesting, that's fo' sho'
set cut_paste_input [stack 0]
version 6.3 v3
NoOp {
inputs 0
name grid
selected true
xpos 1629
ypos 1506
}
LensDistortion1_0 {
serializeKnob
serialiseKnob 22 serialization::archive 4 0 0 0 0 0 0 0 0 0 0 0 0
outputType Displacement
invertDistortion true
filter Rifman
Card Parameters 1
name LensDistortion
selected true
xpos 1629
ypos 1560
}
set N3a5efc10 [stack 0]
push $N3a5efc10
push $cut_paste_input
NoOp {
name plate
selected true
xpos 1738
ypos 1509
}
Group {
inputs 2
name ChromaticAbZapper
selected true
xpos 1738
ypos 1643
addUserKnob {20 User l NormanVision}
addUserKnob {4 hero l Hero Channel t The channel that will remain
unaffected throughout processing M {Red Green Blue}}
hero Green
addUserKnob {7 red l Nudge Red R -1 1}
addUserKnob {7 green l Nudge Green R -1 1}
addUserKnob {7 blue l Nudge Blue R -1 1}
addUserKnob {26 slug l +STARTLINE T *requires LensDistortion node
set\nto displacement in displace input\n**meant to be done on a grid
and\nthen applied}
}
Input {
inputs 0
name source
xpos 572
ypos 448
}
Dot {
name Dot3
xpos 603
ypos 488
}
set N896cfb30 [stack 0]
Shuffle {
red alpha
green alpha
blue alpha
name Shuffle4
label rgba.alpha
xpos 914
ypos 577
}
Dot {
name Dot2
xpos 945
ypos 822
}
Input {
inputs 0
name displace
xpos 469
ypos 517
number 1
}
Dot {
name Dot1
xpos 500
ypos 628
}
set N6c6eb060 [stack 0]
Grade {
channels forward
blackpoint {{parent.blue i}}
whitepoint {{1-parent.blue i}}
black_clamp false
name Grade4
xpos 750
ypos 651
disable {{hero==2 i}}
}
push $N896cfb30
Shuffle {
red blue
green blue
alpha black
name Shuffle1
label rgba.blue
xpos 792
ypos 578
}
STMap {
inputs 2
uv forward
name STMap3
xpos 792
ypos 715
}
push $N6c6eb060
Grade {
channels forward
blackpoint {{parent.red i}}
whitepoint {{1-parent.red i}}
black_clamp false
name Grade2
xpos 469
ypos 665
disable {{hero==0 i}}
}
push $N896cfb30
Shuffle {
green red
blue red
alpha black
name Shuffle2
label rgba.red
xpos 570
ypos 582
}
STMap {
inputs 2
uv forward
name STMap1
xpos 571
ypos 713
}
push $N6c6eb060
Grade {
channels forward
blackpoint {{parent.green i}}
whitepoint {{1-parent.green i}}
black_clamp false
name Grade3
xpos 635
ypos 654
disable {{hero==1 i}}
}
push $N896cfb30
Shuffle {
red green
blue green
alpha black
name Shuffle3
label rgba.green
xpos 682
ypos 578
}
STMap {
inputs 2
uv forward
name STMap2
xpos 682
ypos 712
}
Copy {
inputs 2
from0 rgba.red
to0 rgba.red
name Copy2
xpos 674
ypos 844
}
Copy {
inputs 2
from0 rgba.blue
to0 rgba.blue
name Copy3
xpos 674
ypos 930
}
Copy {
inputs 2
from0 rgba.alpha
to0 rgba.alpha
name Copy5
xpos 674
ypos 1007
}
NoOp {
name versionator
label v1\n7-25-11\njbills\nborn
xpos 674
ypos 1059
}
set N39b8f1e0 [stack 0]
Output {
name Output1
xpos 674
ypos 1176
}
push $N39b8f1e0
push $N39b8f1e0
Viewer {
inputs 2
input_process false
name Viewer1
xpos 1134
ypos 989
}
end_group
LensDistortion1_0 {
inputs 2
serializeKnob
serialiseKnob 22 serialization::archive 4 0 0 0 0 0 0 0 0 0 0 0 0
distortion1 {{parent.LensDistortion.distortion1.L}}
distortion2 {{parent.LensDistortion.distortion2.L}}
distortionCenter {{parent.LensDistortion.distortionCenter.L.x}
{parent.LensDistortion.distortionCenter.L.y}}
filter Rifman
Card Parameters 1
cardScale {{parent.LensDistortion.cardScale.L.x x1 1}
{parent.LensDistortion.cardScale.L.y x1 1}
{parent.LensDistortion.cardScale.L.z x1 1}}
a {{parent.LensDistortion.a.L x1 0}}
b {{parent.LensDistortion.b.L x1 0}}
c {{parent.LensDistortion.c.L x1 0}}
name LensDistortion_clone
selected true
xpos 1738
ypos 1740
}
On Tue, Sep 27, 2011 at 3:51 AM, Darren Coombes
dar...@resolutiondesign.com.au wrote:
Geez, that worked. So simple.
Last 2 days have been loongg. So heads not
Re: [Nuke-users] Remove chromatic aberration
If you have the full Furnace suite you can try F_ChannelRepair. If you don't have furnace, you can try translating the color channels individually through a radial grad using a transform masked node to re-align the color channels. On Mon, Sep 26, 2011 at 9:08 PM, Darren Coombes dar...@resolutiondesign.com.au wrote: I have a shot with some heavy aberration that's red/cyan in color and it's affecting my key on a blue screen. Is there a way to shift the color channels and make the aberration less prominent? Thanks. Darren Coombes darren.coom...@me.com 0418 631 079___ Nuke-users mailing list Nuke-users@support.thefoundry.co.uk, http://forums.thefoundry.co.uk/ http://support.thefoundry.co.uk/cgi-bin/mailman/listinfo/nuke-users -- John Mangia 908.616.1796 j...@johnmangia.com ___ Nuke-users mailing list Nuke-users@support.thefoundry.co.uk, http://forums.thefoundry.co.uk/ http://support.thefoundry.co.uk/cgi-bin/mailman/listinfo/nuke-users
Re: [Nuke-users] Remove chromatic aberration
Sometimes I will individually lensDistort the r,g,b, channels. There isn't a channel knob on it though so you have to do them separately and remerge them. Also sometimes basic scale/transforms on individual channels will work. -deke On Mon, Sep 26, 2011 at 20:15, John Mangia j...@johnmangia.com wrote: If you have the full Furnace suite you can try F_ChannelRepair. If you don't have furnace, you can try translating the color channels individually through a radial grad using a transform masked node to re-align the color channels. On Mon, Sep 26, 2011 at 9:08 PM, Darren Coombes dar...@resolutiondesign.com.au wrote: I have a shot with some heavy aberration that's red/cyan in color and it's affecting my key on a blue screen. Is there a way to shift the color channels and make the aberration less prominent? Thanks. Darren Coombes darren.coom...@me.com 0418 631 079___ Nuke-users mailing list Nuke-users@support.thefoundry.co.uk, http://forums.thefoundry.co.uk/ http://support.thefoundry.co.uk/cgi-bin/mailman/listinfo/nuke-users -- John Mangia 908.616.1796 j...@johnmangia.com ___ Nuke-users mailing list Nuke-users@support.thefoundry.co.uk, http://forums.thefoundry.co.uk/ http://support.thefoundry.co.uk/cgi-bin/mailman/listinfo/nuke-users ___ Nuke-users mailing list Nuke-users@support.thefoundry.co.uk, http://forums.thefoundry.co.uk/ http://support.thefoundry.co.uk/cgi-bin/mailman/listinfo/nuke-users
