kpprt’s gists

kpprt / comp_stats.py

Created September 12, 2017 10:22

Print out stats about a comp in Nuke. Returns a list of used node classes and their number of occurrences.

	stats = dict()

	for n in nuke.allNodes():
	node_class = str(n.Class())
	if node_class in stats:
	stats[node_class] += 1
	else:
	stats[node_class] = 1

	import operator

kpprt / CS_UVTransform.tcl

Created March 26, 2018 11:16

Transform with normalized UV values.

	set cut_paste_input [stack 0]
	version 10.5 v3
	push $cut_paste_input
	Group {
	name CS_UVTransform1
	tile_color 0xa57aaaff
	addUserKnob {20 CS_UVTransform}
	addUserKnob {41 uvPosition l "UV Position" T Transform1.uvPosition}
	addUserKnob {41 uvSize l "UV Size" T Transform1.uvSize}
	addUserKnob {41 uvCenter l "UV Center" T Transform1.uvCenter}

kpprt / CS_AdvancedRect.tcl

Last active April 18, 2018 08:33

A more versatile, parametric and feathered Rectangle for Nuke.

	Group {
	name CS_AdvancedRect1
	addUserKnob {20 CS_AdvancedRect}
	addUserKnob {19 color}
	color 1
	addUserKnob {6 color_panelDropped l "panel dropped state" -STARTLINE +HIDDEN}
	addUserKnob {15 from}
	from {480 270 1440 810}
	addUserKnob {15 to}
	to {0 0 1920 1080}

kpprt / CS_Flicker.tcl

Created April 20, 2018 15:33

Simple Multiply node for Nuke extended with parameters to control a flicker noise.

	set cut_paste_input [stack 0]
	version 10.5 v3
	push $cut_paste_input
	Multiply {
	channels rgb
	value {{"offset + (noise(frame * frequency1, seed) + noise(frame * frequency2, seed)) * 0.5 * amplitude"}}
	name CS_Flicker1
	addUserKnob {20 Flicker}
	addUserKnob {7 frequency1}
	frequency1 0.123

kpprt / CS_Line.tcl

Last active October 8, 2018 15:27

Create a straight line in Nuke from one position to another and define a width as well as rounded or square caps. Since it is realized internally with a Roto node it is also possible to render the line with Motion Blur.

	set cut_paste_input [stack 0]
	version 10.5 v7
	push $cut_paste_input
	Group {
	name CS_Line1
	addUserKnob {20 CS_Line}
	addUserKnob {41 output T Roto1.output}
	addUserKnob {41 cliptype l "clip to" T Roto1.cliptype}
	addUserKnob {26 divider_shape l "@b;Shape"}
	addUserKnob {41 color T Roto1.color}

kpprt / CS_StabilizeCamRotation.tcl

Last active November 1, 2018 17:07

Stabilize an image with the rotation of a 3D camera in Nuke. An additional axis input allows camera animations on top of the stabilization. Options for filtering, overscan and output of motion vectors are available.

	set cut_paste_input [stack 0]
	version 10.5 v7
	push 0
	push $cut_paste_input
	Group {
	inputs 2
	name CS_StabilizeCamRotation1
	tile_color 0x9c0000ff
	addUserKnob {20 CS_StabilizeCamRotation}
	addUserKnob {41 stabilize_frame l "stabilize frame" T FrameHold1.first_frame}

kpprt / CS_SequenceViewer.tcl

Last active November 5, 2018 17:29

Shows the current shot side by side with the previous and the next shot in Nuke. Also the previous shot and the next shot are temporally aligned to the current shot.

	set cut_paste_input [stack 0]
	version 10.5 v7
	push 0
	push 0
	push $cut_paste_input
	Group {
	inputs 3
	name CS_SequenceViewer1
	addUserKnob {20 CS_SequenceViewer}
	}

kpprt / CS_CheckerBoard.tcl

Last active February 26, 2019 09:17

A simple checkerboard generator for Nuke that doesn't require a specific format. Instead it takes the input format and overwrites the rgba channels with the checkerboard colors.

	set cut_paste_input [stack 0]
	version 10.5 v7
	push $cut_paste_input
	Group {
	name CS_CheckerBoard1
	addUserKnob {20 CS_CheckerBoard}
	addUserKnob {41 checker_size T Expression1.checker_size}
	addUserKnob {41 centered T Expression1.centered}
	addUserKnob {41 center l "" -STARTLINE T Expression1.center}
	addUserKnob {41 colorA T Expression1.colorA}

kpprt / createExrCamVray.py

Created February 26, 2019 16:20

Generate a camera in Nuke from the metadata of an EXR sequence that is rendered with VRay in Maya.

	# code copied and adapted from https://pastebin.com/4vmAmARU

	# Big thanks to Ivan Busquets who helped me put this together!
	# (ok, ok, he really helped me a lot)
	# Also thanks to Nathan Dunsworth for giving me solid ideas and some code to get me started.

	import math


	def createExrCamVray( node ):

kpprt / CK_AxisBlend.tcl

Last active October 4, 2019 14:07

Blend between two Axis' in Nuke. Caution: The resulting Axis might be skewed while blending even when the sources are not! If there are time offsets on the input Axis' they need to be filled in manually since they are not taken into account automatically.

	set cut_paste_input [stack 0]
	version 10.5 v1
	push $cut_paste_input
	Group {
	name CK_AxisBlend1
	tile_color 0x9c0000ff
	addUserKnob {20 CK_AxisBlend}
	addUserKnob {3 time_offset0 l "time offset 0"}
	addUserKnob {6 hold0 l hold -STARTLINE}
	addUserKnob {26 space l "" -STARTLINE T " \| "}

Christian Kauppert kpprt