Crease pattern

A crease pattern is a specific arrangement of folds typically used in origami, paper engineering, and other forms of foldable structures. It is a two-dimensional diagram that represents all the creases needed to be made in a sheet of paper to create a particular three-dimensional shape or object. Crease patterns are often represented visually, showing both mountain folds (where the paper is folded upwards) and valley folds (where the paper is folded downwards).