Blender for Production - Blender to NUKE Workflow - 03 World Position Passes for NUKE & Customs AVOs

In this tutorial, we will talk about the Blender Data passes and how to set them up, so that they can be used in NUKE correctly. Out of the box, there are many problems with these passes, because the coordinate systems don't match and Geometry and Cameras from Blender don't match the EXR Data passes, which you will extract in NUKE. We will analyze these problems, solve them, and then build solid solutions for production. Additionally, we will define with the help of Custom AVOs inside of Blender important passes like World Position Passes, UVs and other helpers.

If you have questions or topics, which should be added, please let me know.

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These topics are covered:

Render Layers
Shadow AOVs
World Position Pass
Defining a Shader AOV
Adding AOV Outputs in the Shader
Debugging Custom AOVs in the Viewport
Understanding a World Position Pass
Geometry Node
Collecting the AOV data
Adding a new Render Layer
Render Filters
Fake User Importance
Render Layer Material Override
Compositor Editor for Output
Render multiply layers
WPP Exr in NUKE
Position to Points Node
NUKE's 3D Space
Solving the Orientation problem
Exporting ALEMBIC (abc) from Blender
Importing ALEMBIC into NUKE
Building a 3D Scene in NUKE
Adding a second Viewer
Adjusting the coordinates with Shuffle
Expression Node
Correcting the Normal Vectors
Storing a NUKE Preset
Setting up a Blender Utility Shader
Shuffle Positions in a Blender Shader
Separate RGB / Combine RGB Node
Using the Blender Math Node
Package the Blender for NUKE Utility Shader

If you want to learn more about NUKE, you find here my free playlist "NUKE Practice Hour"
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This tutorial series „Blender for Production“ focuses on Blender as a full Production Suite for (Indie) 3D- & VFX Productions. In these tutorials, I will explain how to work with the different Modules of Blender and how they are connected. I will give you an introduction to the specific functionalities, but also the production context and workflows, which can help you to use Blender in your productions.

As a Senior 3D & VFX Trainer, Helge Maus teaches 3D- & VFX Applications for 20 years. His focus lies on VFX, but he also works with many studios and agencies from different visualization areas. He focuses on Houdini FX, Blender, and NUKE for his daily work and training.

If you have questions or topics, which should be added, please let me know.

If you want to support Helge Maus for publishing more free tutorials you could join his Patreons:
  / pixeltrain3d  

And if you want to have the exercise files here is the Gumroad link. These files are available for free for my Patreons: https://gum.co/VWFzTN

Find more information on www.pixeltrain.net

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