set cut_paste_input [stack 0]
push $cut_paste_input
Group {
name GrainScatter
tile_color 0x7f7f7fff
addUserKnob {20 Params}
addUserKnob {41 useGPUIfAvailable l "Use GPU if available" T VoroNoise.useGPUIfAvailable}
addUserKnob {41 vectorize l "Vectorize on CPU" -STARTLINE T VoroNoise.vectorize}
addUserKnob {26 ""}
addUserKnob {3 sample_frame l "sample frame"}
sample_frame 1
addUserKnob {22 set_current l Current t "set to current frame" -STARTLINE T "nuke.thisNode()\['sample_frame'].setValue(nuke.frame())"}
addUserKnob {15 box l "source area" t "Source area for scatter. Make sure there is no image detail inside this box!"}
box {207.25 689 612.75 1051}
addUserKnob {26 noise_label l " " T "<b>Voronoi Noise Settings"}
addUserKnob {6 overlay_pattern l "overlay pattern" +STARTLINE}
addUserKnob {7 cell_size l "cell size" R 0 100}
cell_size 40
addUserKnob {3 edge_blend_size l "edge blend size"}
edge_blend_size 5
addUserKnob {7 amplitude R 0 100}
amplitude 14
addUserKnob {7 frequency R 0 100}
frequency 6
addUserKnob {41 VoroNoise_Seed l Seed T VoroNoise.VoroNoise_Seed}
addUserKnob {26 "" +STARTLINE}
addUserKnob {41 first_frame l "frame range" T FrameRange1.first_frame}
addUserKnob {41 last_frame l "" -STARTLINE T FrameRange1.last_frame}
}
Input {
inputs 0
name Input
xpos 180
ypos -879
}
Dot {
name Dot14
xpos 214
ypos -750
}
set N6221a400 [stack 0]
Dot {
name Dot16
xpos 434
ypos -750
}
Remove {
name Remove1
xpos 400
ypos -687
}
Dot {
name Dot6
xpos 434
ypos -606
}
set N62218f00 [stack 0]
Dot {
name Dot15
xpos 654
ypos -606
}
set N62218800 [stack 0]
Dot {
name Dot7
xpos 874
ypos -606
}
Noise {
output {rgba.red -rgba.green -rgba.blue none}
replace true
size {{parent.frequency} {"parent.frequency * pixel_aspect"}}
zoffset {{"x + 1000"}}
gamma 1
name Noise1
xpos 840
ypos -514
}
Noise {
output {-rgba.red rgba.green -rgba.blue none}
replace true
size {{parent.Noise1.size} {parent.Noise1.size}}
zoffset {{x}}
gamma 1
name Noise2
xpos 840
ypos -481
}
Clamp {
name Clamp1
xpos 840
ypos -424
}
Dot {
name Dot11
xpos 874
ypos -366
}
push $N62218800
BlinkScript {
ProgramGroup 1
KernelDescription "2 \"VoroNoise\" iterate pixelWise c117be128a07c11b6d82fd34148d66b3bcac41976ec9c2082affe38e890c2c0f 2 \"src\" Read Point \"dst\" Write Point 6 \"Frequency\" Float 1 AABIQg== \"Seed\" Int 1 AAAAAA== \"aspect ratio\" Float 1 AACAPw== \"width\" Int 1 AAAAAA== \"height\" Int 1 AAAAAA== \"Randomness\" Float 1 AAAAPw== 6 \"frequency\" 1 1 \"seed\" 1 1 \"aspect_ratio\" 1 1 \"width\" 1 1 \"height\" 1 1 \"randomness\" 1 1 0"
kernelSource "// Voronoi.blink\n// A test implementation of libNoise's Voronoi generator using Blink\n// Ivan Busquets - August 2013\n// Modified for DasGrain by Fabian Holtz - April 2019\n\n#define X_NOISE_GEN  1619\n#define Y_NOISE_GEN  31337\n#define Z_NOISE_GEN  6971\n#define SEED_NOISE_GEN  1013\n#define SQRT_3 1.73205081\n\ninline int IntValueNoise3D (int x, int y, int z, int seed)\n\{\n  // All constants are primes and must remain prime in order for this noise\n  // function to work correctly.\n  int n = (\n      X_NOISE_GEN    * x\n    + Y_NOISE_GEN    * y\n    + Z_NOISE_GEN    * z\n    + SEED_NOISE_GEN * seed)\n    & 0x7fffffff;\n  n = (n >> 13) ^ n;\n  return (n * (n * n * 60493 + 19990303) + 1376312589) & 0x7fffffff;\n\}\n\ninline float ValueNoise3D (int x, int y, int z, int seed)\n\{\n  return 1.0 - ((float)IntValueNoise3D (x, y, z, seed) / 1073741824.0);\n\}\n\nkernel VoroNoise : ImageComputationKernel<ePixelWise>\n\{\n  Image<eRead> src;\n  Image<eWrite, eAccessPoint> dst;\n\nparam:\n  float frequency;\n  int seed;\n  float aspect_ratio;\n  int width;\n  int height;\n  float randomness;\n\n\n  void define() \{\n    defineParam(frequency, \"Frequency\", 50.0f);\n    defineParam(aspect_ratio, \"aspect ratio\", 1.0f);\n    defineParam(seed, \"Seed\", 0);\n    defineParam(randomness, \"Randomness\", 0.5f);\n  \}\n\n\n\n\n  void process(int2 pos) \{\n   float x = pos.x * aspect_ratio * frequency / width;\n   float y = pos.y * frequency / width;\n   int xInt = (x > 0.0) ? x : x - 1;\n   int yInt = (y > 0.0) ? y : y - 1;\n\n\n    float minDist = 2147483647.0;\n    float xCandidate = 0;\n    float yCandidate = 0;\n\n    float dist;\n\nfor (int yCur = yInt - 2; yCur <= yInt + 2; yCur++) \{\n      for (int xCur = xInt - 2; xCur <= xInt + 2; xCur++) \{\n\n        // Calculate the position and distance to the seed point inside of\n        // this unit cube. Limited by the randomness value\n        float xPos = xCur + (ValueNoise3D (xCur, yCur, 0, seed    ) + 1 ) * randomness + (1-randomness) - 1;\n        float yPos = yCur + (ValueNoise3D (xCur, yCur, 0, seed + 1) + 1 ) * randomness + (1-randomness) - 1;\n\n        float xDist = xPos - x;\n        float yDist = yPos - y;\n\n        dist = pow(xDist, 2) + pow(yDist, 2);\n        if (dist < minDist) \{\n          // This seed point is closer to any others found so far, so record\n          // this seed point.\n          minDist = dist;\n          xCandidate = xPos;\n          yCandidate = yPos;\n\t\}\n    \}\n\}\n\n    SampleType(dst) sample(0.0f);\n\n    sample.x = xCandidate / aspect_ratio / frequency;\n    sample.y = yCandidate / height * width / frequency;\n    sample.z = 0;\n\n    dst() = sample;\n\}\n\};"
rebuild ""
VoroNoise_Frequency {{"width / parent.cell_size"}}
VoroNoise_Seed {{t*5}}
"VoroNoise_aspect ratio" {{pixel_aspect}}
VoroNoise_width {{width}}
VoroNoise_height {{height}}
rebuild_finalise ""
name VoroNoise
xpos 620
ypos -520
}
Copy {
inputs 2
from0 rgba.red
to0 forward.u
from1 rgba.green
to1 forward.v
name Copy1
xpos 620
ypos -382
disable {{"parent.amplitude == 0"}}
}
IDistort {
uv forward
uv_offset 0.5
uv_scale {{parent.amplitude} {"uv_scale.w * pixel_aspect"}}
filter impulse
name IDistort1
xpos 620
ypos -304
disable {{"parent.amplitude == 0" x10 1}}
}
Dot {
name Dot5
xpos 654
ypos -246
}
NoTimeBlur {
rounding floor
name NoTimeBlur3
xpos 620
ypos -154
}
Transform {
translate {{"floor((x * size) % 1 * (size)) - int(size / 2)"} {"floor(x % 1 * (size)) - int(size/2)"}}
filter impulse
black_outside false
name Transform1
xpos 664
ypos -69
disable {{"parent.edge_blend_size < 1" x-5 1 x10 1}}
addUserKnob {20 User}
addUserKnob {3 size}
size {{"parent.edge_blend_size + 1"}}
}
Dot {
name Dot9
xpos 654
ypos 42
}
set N8c06b200 [stack 0]
push $N62218f00
Expression {
expr0 "(x + .5) / width"
expr1 "(y + .5) / height"
expr2 0
name STMapGenerator
xpos 400
ypos -514
}
NoTimeBlur {
rounding floor
name NoTimeBlur2
xpos 400
ypos -154
}
Merge2 {
inputs 2
operation from
Achannels {rgba.red rgba.green -rgba.blue none}
Bchannels {rgba.red rgba.green -rgba.blue none}
output {rgba.red rgba.green -rgba.blue none}
name Merge2
xpos 400
ypos 38
}
Dot {
name Dot10
xpos 434
ypos 210
}
push $N8c06b200
Expression {
temp_name0 view_index
temp_expr0 "parent.parent.stereo == 1 ? \[lsearch \[value root.views] \[view]] / 2 : 0"
expr0 "random((r + view_index) * 1000000, 0) * (maxx - minx) + minx"
expr1 "random((g + view_index) * 1000000, 0) * (maxy - miny) + miny"
channel2 none
channel3 none
name Expression3
xpos 620
ypos 110
addUserKnob {20 User}
addUserKnob {7 frequency R 0 100}
frequency {{parent.parent.cell_size}}
addUserKnob {7 multiplier R 0 3}
multiplier 0.5
addUserKnob {15 shrink}
shrink {{"frequency * multiplier + ceil(parent.edge_blend_size / 2) + IDistort1.uv_scale.w / 2"} {"frequency * multiplier + ceil(parent.edge_blend_size / 2) + IDistort1.uv_scale.h / 2"} {"frequency * multiplier + floor(parent.edge_blend_size / 2) + IDistort1.uv_scale.w / 2"} {"frequency * multiplier + floor(parent.edge_blend_size / 2) + IDistort1.uv_scale.h / 2"}}
addUserKnob {26 ""}
addUserKnob {7 minx}
minx {{"(parent.box.x + shrink.x + .5) / width"}}
addUserKnob {7 maxx}
maxx {{"(parent.box.r - shrink.r - .5) / width"}}
addUserKnob {7 miny}
miny {{"(parent.box.y + shrink.y + .5) / height"}}
addUserKnob {7 maxy}
maxy {{"(parent.box.t - shrink.t - .5) / height"}}
}
Merge2 {
inputs 2
operation plus
Achannels {rgba.red rgba.green -rgba.blue none}
Bchannels {rgba.red rgba.green -rgba.blue none}
output {rgba.red rgba.green -rgba.blue none}
name Merge3
xpos 620
ypos 206
}
Expression {
expr0 "(r + (maxx - minx) - minx) % (maxx - minx) + minx"
expr1 "(g + (maxy - miny) - miny) % (maxy - miny) + miny"
channel2 none
channel3 none
name Expression7
xpos 620
ypos 278
addUserKnob {20 User}
addUserKnob {7 minx}
minx {{"(parent.box.x + rint(x % 1 * parent.edge_blend_size) + .5) / width"}}
addUserKnob {7 maxx}
maxx {{"(parent.box.r + rint(x % 1 * parent.edge_blend_size) - .5) / width"}}
addUserKnob {7 miny}
miny {{"(parent.box.y + rint(x % 1 * parent.edge_blend_size) + .5) / height"}}
addUserKnob {7 maxy}
maxy {{"(parent.box.t + rint(x % 1 * parent.edge_blend_size) - .5) / height"}}
}
Dot {
name Dot3
xpos 654
ypos 354
}
set N5d7e3900 [stack 0]
Dot {
name Dot13
xpos 654
ypos 546
}
push $N5d7e3900
Dot {
name Dot8
xpos 874
ypos 354
}
Blur {
channels rgb
size {{pixel_aspect} 1}
name Blur1
label "\[value size]"
xpos 840
ypos 440
}
Difference {
inputs 2
name Difference2
xpos 840
ypos 536
}
Expression {
channel0 {none none none rgba.alpha}
expr0 "a > 1e-9"
channel1 none
channel2 none
channel3 none
name Expression2
xpos 840
ypos 614
}
Shuffle {
red alpha
green alpha
blue alpha
name Shuffle1
label "\[value in]:\[value out]"
xpos 840
ypos 680
}
Dot {
name Dot4
xpos 874
ypos 762
}
push $N5d7e3900
push $N6221a400
FrameHold {
first_frame {{sample_frame}}
name FrameHold1
xpos 180
ypos -256
}
NoTimeBlur {
rounding floor
name NoTimeBlur1
xpos 180
ypos -154
}
STMap {
inputs 2
channels rgb
uv rgb
filter impulse
name STMap1
xpos 180
ypos 350
}
set Nd1567200 [stack 0]
TimeBlur {
divisions {{"max(Transform1.size == 1 ? 2 : pow2(Transform1.size), 1)"}}
shutter 1
shuttercustomoffset {{"1 / divisions / 2"}}
name TimeBlur1
xpos 180
ypos 446
disable {{"parent.edge_blend_size < 1"}}
}
set Nd1566b00 [stack 0]
push $Nd1567200
Dot {
name Dot1
xpos -6
ypos 354
}
Difference {
inputs 2
name Difference1
xpos -40
ypos 440
}
Expression {
channel0 {none none none rgba.alpha}
expr0 "a > 1e-10"
channel1 none
channel2 none
channel3 none
name Expression1
xpos -40
ypos 494
}
Blur {
channels alpha
size {{parent.parent.edge_blend_size}}
name Blur2
xpos -40
ypos 536
}
Grade {
channels alpha
blackpoint 0.5
white_clamp true
name Grade2
xpos -40
ypos 584
}
Dot {
name Dot2
xpos -6
ypos 666
}
push $Nd1566b00
Grade {
inputs 1+1
white 1.4
black_clamp false
name Grade1
xpos 180
ypos 662
disable {{"parent.edge_blend_size < 1"}}
}
Merge2 {
inputs 2
Achannels rgb
Bchannels rgb
output rgb
name Merge1
xpos 180
ypos 758
disable {{!parent.overlay_pattern}}
}
Assert {
expression {{"Expression3.maxx > Expression3.minx && Expression3.maxy > Expression3.miny"}}
message "increase sample box size or decrease cell size"
name error
xpos 180
ypos 854
}
FrameRange {
first_frame 1001
last_frame 1025
time ""
name FrameRange1
label "\[value first_frame]-\[value last_frame]"
xpos 180
ypos 896
}
Output {
name Output1
xpos 180
ypos 974
}
end_group