A control apparatus for controlling a concavo-convex layer forming apparatus, includes at least one memory that stores instructions, and at least one processor coupled to the at least one memory, and configured to execute the instructions to cause the control apparatus to function as an input unit configured to input concavo-convex data representing a three-dimensional object, and a correction unit configured to perform correction on the input concavo-convex data in accordance with at least one frequency band of the input concavo-convex data and a filter having an intensity that is made higher for the input concavo-convex data having a greater amplitude on the input concavo-convex data.