Third learning method is a method of painting a picture completely different from the real thing. A learner can check how the learner's picture looks like on a curved surface and unevenness of the 3D object, and how it looks from the learner ’s viewpoint when it comes to the edge of the 3D object. For example, a picture drawn on a plane can be seen at a glance at the whole. However, for example, in the case of 3D objects such as vases and bowls, it is not possible to look at all the pictures drawn on the surface at a glance, thus it is necessary to look at each point of view by rotating the 3D objects. At this time, if you set the part of the picture on the 3D object to look in front, the part of the other picture will be visible in the periphery, and you will see it from an angle. For this reason, when designing a picture with a three-dimensional shape, it is necessary to arrange the patterns in a balanced manner, assuming that it can be viewed from various viewpoints. In such a case, if there is an environment in which a picture can be drawn on a virtual 3D object, it is possible to improve the efficiency of learning because it is possible to redo again and again. This means that even in the second learning method described above, it is possible to correct many times while changing the pattern.