NUKE: Rendering multiple channels (using OpenEXR .exr)
How to render multiple channels in NUKE
Have you got an idea for a video? Get in touch to discuss!
Please don’t forget to check out examples of our animated video work here:
SOFI K - Animated Lyric Video
Karl Baudoin - Animated Music Video
Wonder - Animated Music Video
Catch a glimpse - Animated Music Video
The Old Red Rooster - Animated Music Video
Poka - Animated Music Video
Lush - Animated Music Video
![Francis Martin – Mind Come Up (Trinity) [Official Music Video]](http://sundstedt.se/blog/wp-content/uploads/2020/09/francis-martin-mind-come-up-trinity-official-music-video-retina-590x332.jpg)
Francis Martin – Animated Music Video
Live - Animated Music Video
Cayman Dance - Animated Music Video
Glasgow City Council – Animated Explainer Video
IDF - Animated Campaign Video
DPRAA - Animated Explainer Video
IDF KiDS - Educational Whiteboard Video
ADP Animated Series
Eco-Schools - Animated Explainer Video
Pfizer - Pharmaceutical Explainer Video
Fewer Funerals - Animated Explainer Video
The Black Sheep - Animated Music Video
Glasgow University - Animated Educational Video
Wolfman - Animated Music Video (loops)
Phyllis Sinclair – Animated Music Video (Loop)
Lofi Girl - Animated Music Video Loops
Microsoft - Windows Whiteboard Video
Windows Enterprise Software Assurance - Whiteboard Video
Windows Defender - Whiteboard Video
Windows As A Service - Whiteboard Video
Kom igång med Windows i molnet - Whiteboard Video
Duraflor - Animated Explainer Video
British Sign Language - Animated Infographics
100 Years in Marketing - Animated Explainer Video
Triple Card Holder - Introduction Video
Using OpenEXR file format
When you insert a Write node, Nuke assumes that you need only the RGB channels in the final render. In many cases, this is acceptable because you won’t need the alpha channel or other channels from the node tree when you deliver final shots to your clients. However, sometimes you need to render intermediate files—such as mattes, projection elements, or subcomps—and include all the channels in your node tree.
Supporting unlimited channels
For example, rather than manage several elements for an animated character, you could combine the character animation, the lighting passes, alpha channel, and a depth mask in one image sequence on disk. This makesit easier to manage elements in the final composite and simplifies the artist’s workflow. To output all channels, change the Write node’s Output list from RGB to All Channels, select the OpenEXR file format, and then execute the render. Currently the OpenEXR format (.exr) is the only file format that supports unlimited channels.
(Source: Nuke 6.2v1 Manual)
Video has skyrocketed in popularity over the last few years and are increasingly becoming the way people prefer to learn & be informed. Has your company got one yet? Get you Free Video Quote here.
Ready to partner?
