2012
Digital Tutors
Chris Glick
02:46:50
English
Python is a widely used scripting language that is integrated into NUKE to let us artists control the user interface, quickly modify many nodes and integrate with external applications. By learning some Python commands and workflows we can extend NUKE and write scripts that let us focus on creating art. We will start this NUKE tutorial by echoing the Python commands that NUKE uses internally and begin writing our own code. From there we will learn how to correctly create nodes, set properties at node creation and have our scripts automatically run whenever NUKE starts up. From there, we can begin working on some projects, like a script that selects all nodes of a specific class based on user input and a script to automatically break a multi-channel EXR into individual auto-cropped shuffle nodes so we can begin compositing faster.
1. Introduction and Project Overview (01:21)
2. Accessing our Script Editor and writing a Python script (03:38)
3. Running and finding help on Python commands (08:52)
4. Creating new nodes and setting knob values (08:33)
5. Using variables to store information and nodes for later edits (08:25)
6. Printing numbers with strings in Python (07:22)
7. Setting node and knob defaults and saving them in menu.py (07:53)
8. General coding workflows to save time and headache (04:13)
9. Getting selected nodes to modify in Python (06:47)
10. Using and working with Lists to store multiple nodes (07:19)
11. Modifying each item in a list with a For In loop (10:16)
12. Controlling script flow using if statements (13:05)
13. Doing common operations using the included Python scripts (05:24)
14. Getting input from the user to customize our commands (05:44)
15. Selecting all nodes of a certain type by checking their Class (06:56)
16. Creating a quick message to our user with the results (05:13)
17. Working with layers and channels in Python (08:13)
18. Using string splits and sets to gather unique channel layer names (08:51)
19. Connecting node inputs to shuffle our channels out (10:31)
20. Executing commands and copying animation in Python (06:44)
21. Packaging pieces of code in functions for reuse and simplicity (10:56)
22. Adding commands to the NUKE user interface for later use (10:24)
http://www.digitaltutors.com/tutorial/820-Introduction-to-Python-Scripting-in-NUKE

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