Free Digital-Tutors Tutorial on Premultiplication in Nuke

Premultiplication and unpremultiplication are essential concepts for any compositing artist to master. Premultiply refers to performing a multiplication operation on the alpha and color channels of an image. Unpremultiplying then, refers to dividing the RGB image color by the alpha. Without the proper use of these techniques, edge artifacts and/or incorrect color correction can occur.

 

To help clarify how and when to use premultiply and unpremultiply, Laura Smith and Digital-Tutors have created a free tutorial for Nuke that covers this topic. The video can be accessed by going to Digital-Tutors’ blog via the link below:

http://blog.digitaltutors.com/premult-and-unpremult-in-nuke/

Advertisements

Leave a Reply

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out / Change )

Twitter picture

You are commenting using your Twitter account. Log Out / Change )

Facebook photo

You are commenting using your Facebook account. Log Out / Change )

Google+ photo

You are commenting using your Google+ account. Log Out / Change )

Connecting to %s