Rendering an infinite plane

摘要

A machine may render a view that includes a portion of an infinite plane within a three-dimensional (3D) space. The machine may determine a polygon within a frustum in the 3D space. The polygon may be determined by calculating an intersection of the frustum with the infinite plane. The polygon may represent that portion of the infinite plane which lies within the boundaries of the frustum. The machine may then determine a color of an element of this polygon according to one or more algorithms, default values, or other programming for depicting the infinite plane within the 3D space. The color of this element of the polygon may be that applied by the machine to a further element that is located on the far plane of the frustum, and this further element may be located at a height above the polygon within the 3D space.

主权项

1. A method comprising:
determining a polygon within a view frustum by calculating an intersection of the view frustum in a three-dimensional (3D) space with a ground plane defined by a set of all points for which height is zero within the 3D space, the polygon being defined by the intersection of the view frustum and the ground plane and being representative of a portion of the ground plane within the view frustum; determining a color of an element of the polygon that represents the portion of the ground plane within the view frustum; and applying the color of the element of the polygon to a further element located on a far clip plane of the view frustum and at a height above the polygon in the 3D space, the applying of the color to the further element being performed by a processor of a machine.