An
image processing method and an
image processor for drawing the movements of such linear objects as fur, hair, and grass of a turf being influenced by wind have not been proposed thus far. The present invention provides
image processing method executed by an
image processor for projecting and drawing linear objects viewed from view point on a two-dimensional plane when the view point, ground, and linear objects, of which one end of each
linear object is fixed on the ground, are positioned in virtual three-dimensional space, comprising a drawing step of layering the cross-sections of linear objects created by
cutting the plurality of linear objects at planes which are parallel with the ground for each of planes as semi-transparent
layers, and a redrawing step of moving the semi-transparent
layers in a predetermined direction after a predetermined time elapsed and redrawing the semi-transparent layer(s) on the two-dimensional plane.