Pixar didn't use ray tracing much until 2013 with Monster's University. https://www.theverge.com/2013/6/21/4446606/how-pixar-changed-the-way-light-works-for-mo

Pixar didn't use ray tracing much until 2013 with Monster's University. https://www.theverge.com/2013/6/21/4446606/how-pixar-changed-the-way-light-works-for-monsters-university https://www.theverge.com/2013/6/21/4446606/how-pixar-changed... Nowadays ray tracing is common, but as recently as five years ago it was rare. Not all high-quality animation is ray traced.