For Netflix's "Klaus," The SPA Studios developed new technology to add lighting and texture to the characters that makes them appear 3D.

We spoke with Cartoon Saloon's Eimhin McNamara, who was tasked with helping create these scenes, to find out how they did it and why they chose to lean into hand-drawn animation over 3D CGI.

3D computer animation is the go-to style for most studios making animated films today. However, traditional hand-drawn 2D animation once ruled over the industry and is sorely missed in the modern ...