As practice using exr file formats, we were asked to create a composition of a car using a pre-existing Exr image given to us.
Because Exr files can have up to 1023 channels, we only needed one file for the car instead of separate images for Ambient occusion, Refraction, glossiness etc.
If you were to plug the Exr straight into the viewer, you would be left with a car. This isn’t very interesting, so we must extract and use the various channels present in the file.
To do this, we will want to use the ‘Shuffle’ Node. This allows you to rearrange channels, so we can