Using the CornerPin Node

Nuke Tracking, 18-19 June

18 June

Lesson 4
Node -Scene- to connect different 3d elements
Connect BG to Scanline Render to change ouput size that differs from your Project settings

Pro preview 3d without rendering select camera in 3d view lock it and play
Disable track1 to make tracker2
Tracker -Settings-
Grab new pattern. every 4 frames grab new pattern, son on f5 it will be pattern fom fr4
Tracking backwards
Tracker - Tranform Tab- Reference frame go to the last frame(closer) and push -set ti this frame-
Add motion blur select output UV motion/ add vector blur select channels UV
TRacking settings transform type- match move for one node.

Tracker warp types.
Position
Position/rotate
position/rotate/ scale

Look for the best color channel for tracking.
Footage, tracker, checkboard, cornerpin, merge, output
Create tracker coonect to input file. Create tracker
If tracker marken out of frame create another offset tracker markek. Cmd + drag
Clean Offset/ Grab/ Clr frwd
Create checkboard, make all colors black and increase size of line.
Add corner pin. Mind the postion of trackers
left top corner -4
right top corner -3
right bottom corner -2
left bottom corner -1

Connect trackers to corners
using Merge(Plus mode)

Nuke Inroduction, Lesson 1

15 OF JUNE
Key feature to handle 64 bit channels
beaty pass ref spec dif.
Nuke script is TCL text file
everything is tcl commmand. For troubleshooting pretty good.
Execute command will render any write node in project
Execute this render just one write node.
Render - Buffer report/ Render/ render this/

Anything Nuke crates itself solids color nodes will create according size set in root option

16 of June and 17 of June

Keyer to key green screen
HueCorrect to change certain color
Light wrap/ generate wrap only merge with plus mode
Cmd+number level of zoom/ option number zoom out
Prefs 0 windows - Control panes(own window or pop up window)
HueKeyer amount Com+Shfit select area(exp. face)
Connect invert alpha- color correct
and correct only certain area which masked in aplha
Use GRADE(gain, alpha) to adjust aplha channel for keying
Use -LIGHTWRAP0 to create wrap. Adjust Diffuse/Intensity
Connect A to FG/premult and B to BG/ connet output with merge(plus)
Tick + generate wrap only+/+enable Glow+

Shortcut:
q - current info/ displays script path
Shift - A add Mix/ affect alpha channel
-HUEKEYER- select color range and
Channels- rgb / output rgba.alpha
Invert Alpha add -COLOrCORRECT-
-CC- choose mask rgba.alpha in ranges tab

-LUT settings-
Linear - 32 bit float
In Read settings tick +raw data+ (exp: Nuke will not touch file except converting it to 32 bit float)
Read setting
Type in frame field frame +39 so that your sequence will start from f40


To track
create tracker and connect to the tracking image/ set track controls
Push play to create tracking path
create Bezier and connect it to tracking image
create bezier shape and turn off rgb channels
In t-Track tab- add expression(Tracker1.track1.x)
add MarkersRemoval connected to bezier

Animation
Create Constant
add ramp or radial
Add radial opacity expression: sin(x/4) blink
go to Curve editor to check animation curve
X icon appears saying that opacity value mixed back

To create color animation
add colorCorrect
Press set key on -Gain- value
scroll timeline and pick color
Select animated values in curve Editor

Nuke keying nuk101_class 004

Keyer - Primatte KEYING
Auto-compute picks bg color or select color manually
Keyer - Primatte
Viewer displays 3d model of keyer algorithm
alg. Primatte more cpu intensive and more advanced contained data
region 1 100% bg/
region 2 hairs no neccesarry opacue or tranparent/ most spill suppression/ shadows
region 3 100% fg complete/ spill suppression/ spill skin/
region 4 everything else 100% opaque/ no spill suppresion

Fine tuning l,m,s poly

ACTIONS - OPERATION - sample bg color/ clean fg color
Single pixel first to key/single pick
before you select large area with ctrl+shift and drag

ACTIONS - OPERATION - SPILL SPONGE
its predefined setting/ minimal control over it/ select color and it
Spill + dimple / Spill - suppress
fills sample color value for entire fg

ACTIONS - OPERATION - Matte

ACTIONS - OPERATION - Fine Tuning sliders
Make tune per color

SPILL PROCESS
complement - is great when you dont have much spil
defocused bg - takes defo cal uses for s knowing that what pixels


QUESTIONS:
Why bezier is not showing up at final output?
How to displace image?nuke
How to change input frame for node and output?(Time view)