Batch Converter #Nuke

nuke-batch-converter.py

import os

file_prefix = None  # If set to None read node file path is used
color_space = None  # Read node colorspace "sRGB", "Cineon", "Gamma2.4" ...
file_types = ("exr", "jpg") # Set of file types to convert

rotate = False      # If set to True, another reformat node will be created
rotation_props = ("center", "turn") # clockwise: ("flip", "flop", "turn")

selection = nuke.selectedNodes()
current_node = None

for idx, item in enumerate(selection):
    if item.Class() != "Read":
        continue
    
    path, file = os.path.split(item["file"].value())

    if color_space:
        #print (item['colorspace'].value())
        item['colorspace'].setValue(color_space)

    #print (item['format'].value().width())
    current_node = item

    if rotate: 
        #item.setSelected(True)
        reformat_node = nuke.createNode("Reformat")
        reformat_node["type"].setValue("scale")
        reformat_node["resize"].setValue("none")
        for prop in rotation_props:
            reformat_node[prop].setValue("true")
        reformat_node.setInput(0,item)
        current_node = reformat_node
   
    for f in file_types:
        #nuke.toNode(current_node.name())
        if file_prefix:
            file_name = "%s-%02d.%s" % (file_prefix, idx+1, f)
        else:
            file_name, ext = os.path.splitext(file)
            file_name = "%s.%s" % (file_name, f)

        write_path = os.path.join(path, file_name).replace("\\","/") # Windows
        write_node = nuke.createNode("Write")
        write_node["file"].setValue(write_path)
        if f == "jpg":
            write_node["_jpeg_quality"].setValue("1")
        write_node.setInput(0,current_node)