Crease pattern

A crease pattern is a diagram that shows all the fold lines needed to transform a flat sheet of paper into a three-dimensional origami model. It includes the positions of mountain folds, which stand up, and valley folds, which fold inward. By studying this pattern, one can understand the steps to fold the paper accurately and visualize the final shape before starting. Crease patterns are essential for complex origami designs, allowing enthusiasts and designers to plan and execute intricate models with precision.