jeangjenq

Nuke ffmpeg Render

Writeffmpeg is a python script and a node that allows you to render from Nuke directly into ffmpeg. Instead of a 2 step process where you render from Nuke to a temporary image sequence that you then transcode using ffmpeg, this solution writes to a single uint16 cache tiff file and this data gets piped into ffmpeg.

I've included a little to help demo how it works.

Files

ffmpeg_render.py Writeffmpeg.nk

	import nuke, nukescripts, nuke.rotopaint as rp, _curvelib as cl

	'''
	## LINK TOOLS
	Utility functions for creating linked nodes. This script can create roto linked to trackers,
	transform linked to trackers, or cameras linked to each other, or held on a projection frame.

	Installation:
	Put link_tools.py somewhere in your nuke path.
	You can add the script as commands to your Nodes panel. This code creates a custom menu entry called "Scripts".

	# Get input node name
	[value this.input0.name][python nuke.thisNode().input(0).name()]

	# Set a variable in expression with TCL:
	[set VARIABLENAME VALUE; return]

	# Use a variable
	$VARIABLENAME

	# String Operation that return the 5th character from top input name

	# Get the last letter/section from node name, separated by "_":
	nuke.thisNode().name().rsplit("_").__getitem__(2)

	# From the above, can be modified to acquire file extension
	nuke.thisNode()['file'].getValue().rsplit(".").__getitem__(2)

	# Set expression with python found in the link below, especially useful when setting expression to a dropdown menu which is usually not accessible
	# http://nuke.yellow-ant.net/set-expression-via-python/
	nuke.selectedNode()['antialiasing'].setExpression('$gui? 0:3')

	def open_folder(path):
	"""
	Open folder based on OS.
	:param path: Directory path
	:type path: str
	:return: None
	:rtype: None
	"""
	if platform.system() == "Windows":
	os.startfile(os.path.abspath(path))

	def read_from_write():
	"""
	Create Read node from selected Write node.
	:return: None
	:rtype: None
	"""
	selected = nuke.selectedNodes()
	writeNodes = []
	for node in selected:
	if node.Class() == 'Write':

	for layer in extract:
	shuffle = nuke.nodes.Shuffle(label='[value in]')
	shuffle["in"].setValue(layer)
	shuffle.setInput(0, self.node)

	l = []
	for root, directories, filenames in os.walk('./'):
	for directory in directories:
	l.append(os.path.join(root, directory))
	for filename in filenames:
	l.append(os.path.join(root, filename))

	import os
	from subprocess import call

	#gather a list of files/directories/subdirectories
	list = []
	for root, directories, filenames in os.environ['OneDrive']:
	for directory in directories:
	list.append(os.path.join(root, directory))
	for filename in filenames:
	list.append(os.path.join(root, filename))

jeangjenq

Nuke ffmpeg Render

Files

Dependencies