It takes a unique approach to personifying hot and cold

“Ember and Wade are unlike anyone we’ve ever animated before. They’re composed of organic matter with no structure, so that offers the animators so much freedom and flexibility. But we still also had to capture the subtle, thoughtful performances of these two,” shared Pixar animator Gwendolyn Enderoğlu.
Her teammate Alison Roland added, “We wanted to honor the truth to materials while also still delivering beautiful and compelling performances. The animation style we were chasing had to artfully bridge these two concepts and strike the right balance.”