Masks isnan/isinf pixels and fills them with MarkerRemoval so bad samples do not poison the tree.
NaN/Inf Killer builds a mask where any channel is NaN or Inf, zeros those pixels, then runs MarkerRemoval (radial) to fill from neighbors and merges the repair back over the original.
No extra knobs; drop it in when you see black holes, flashing pixels, or grades that explode after a math-heavy branch.
set cut_paste_input [stack 0]
version 12.1 v4
push $cut_paste_input
Group {
name naninfKiller
tile_color 0x421010ff
selected true
xpos -1173
ypos 1371
addUserKnob {20 User l nanKiller}
addUserKnob {26 ""}
addUserKnob {26 lbl l "" +STARTLINE T "Nan Inf Killer v1.0"}
addUserKnob {22 btn l DerekVFX.ca T "nuke.tcl('start', 'https://derekvfx.ca')" +STARTLINE}
}
Input {
inputs 0
name Input
xpos 447
ypos -18
}
set Ndc44400 [stack 0]
Expression {
expr0 "isinf(r) || isnan(r)"
expr1 "isinf(g) || isnan(g)"
expr2 "isinf(b) || isnan(b)"
expr3 "isinf(a) || isnan(a)"
name Expression10
label "\[knob expr3]"
xpos 370
ypos 260
}
Expression {
expr3 max(r,g,b,a)
name Expression11
label "\[knob expr3]"
xpos 370
ypos 370
}
set Ndc75c00 [stack 0]
Dot {
name Dot2
note_font_size 40
xpos 404
ypos 637
}
push $Ndc75c00
push $Ndc44400
Dot {
name Dot1
note_font_size 40
xpos 241
ypos 212
}
Copy {
inputs 2
from0 rgba.alpha
to0 mask.a
name Copy1
xpos 207
ypos 370
}
Expression {
temp_name0 m
temp_expr0 mask.a
expr0 "m ? 0 : r"
expr1 "m ? 0 : g"
expr2 "m ? 0 : b"
expr3 "m ? 0 : a"
name Expression1
label "\[knob expr3]"
xpos 207
ypos 460
}
set Ndc74c00 [stack 0]
Dot {
name Dot5
note_font_size 40
xpos 92
ypos 470
}
Shuffle {
red alpha
green alpha
blue alpha
name Shuffle1
label "\[value in]"
xpos 58
ypos 552
}
MarkerRemoval {
mode radial
ctrlMask mask.a
name MarkerRemoval1
xpos 58
ypos 594
}
Dot {
name Dot4
note_font_size 40
xpos 92
ypos 663
}
push $Ndc74c00
MarkerRemoval {
mode radial
ctrlMask mask.a
name MarkerRemoval2
xpos 207
ypos 542
}
Copy {
inputs 2
from0 rgba.red
to0 rgba.alpha
name Copy2
xpos 207
ypos 653
}
Dot {
name Dot3
note_font_size 40
xpos 241
ypos 733
}
push $Ndc44400
Merge2 {
inputs 2
operation copy
bbox B
name Merge1
xpos 447
ypos 729
}
set Ndca0c00 [stack 0]
Output {
name Output1
xpos 447
ypos 804
}
push $Ndca0c00
Viewer {
frame_range 1017-1092
colour_sample_bbox {0.8005697727 0.1044634357 0.8015194535 0.1054131091}
input_process false
gl_lighting true
name Viewer1
selected true
xpos 823
ypos 1061
}
end_group