Let’s start in NUKE 12.2 - 04 Understanding Premults & Alphas in NUKE

Описание: In this tutorial, you will learn the concept of Premultiplication in Compositing. You will learn how to stencil out backgrounds with the help of an Alpha channel and what the NUKE Merge Node wants to have as input. Also, we talk about different Merge Operations and why it is so important to know when to unpremult and to premult - for example with Color Corrections.

These topics are covered:

Project Settings
Reformat a Plate
Generating a colored Background
Merging FG & BG
Merge operations
Mathematical Operations in Merge
Why is Premultiplication important?
Radial Node
Adding Postage Stamps
Using Merges
Understanding Multiply & Plus
Premultiplication by hand
Dot Nodes
Premult Node / Unpremult Node
Premult Alpha / Straight Alpha
Color Correction needs Unpremult
Preventing Color Correction Artifacts
Node Clones

You find the files for this lesson on my Gumroad (free) and on my Patreon!

This tutorial series „NUKE Practice Hour“ focuses on node-based Compositing with Foundry NUKE, NUKEX and NUKE Studio for 3D & VFX. It’s meant for beginners in NUKE who want to learn the fundamentals of Compositing with this great compositing package in a fun, but also practical way.

Helge Maus is a Senior VFX Trainer | Houdini FX Generalist | NUKE Compositor with more than 20 years of experience in training. He delivers with his company pixeltrain | 3D | VFX | animation in-house training, workshops and online-coaching for the 3D & VFX industry.

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

If you want to support me for publishing more free tutorials you could join my Patreons:   / pixeltrain3d  
Or simply buy me a Cappuccino: https://paypal.me/pixeltrain

And here the Gumroad Link for Project files:
https://gumroad.com/pixeltrain3d

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