초록 ▼

A weather simulation system that generates and distributes weather data to simulation subsystems for the real time simulation of weather conditions, from three-dimensional real world data. A real world database is accessed to obtain a dataspace of weather data elements, each having a set of various

A weather simulation system that generates and distributes weather data to simulation subsystems for the real time simulation of weather conditions, from three-dimensional real world data. A real world database is accessed to obtain a dataspace of weather data elements, each having a set of various weather-related parameters. For “out-the-window”weather displays, these data elements are preprocessed to obtain color and transparency values for each data element. The preprocessed data elements are further processed to obtain a prioritized display list of those data elements that are in a field of view. Each data element in this list is assigned a graphics primitive, whose alignment is determined by a wind vector of that data element. Pixel values are assigned to the graphics primitives, using color and transparency values of the associated data elements.

대표청구항 ▼

A method of using a computer to provide frames of display data representing weather conditions based on real-world weather data for use in rendering a three-dimensional display, comprising the steps of: accessing a real-world weather database to obtain a three-dimensional set of data elements, each

A method of using a computer to provide frames of display data representing weather conditions based on real-world weather data for use in rendering a three-dimensional display, comprising the steps of: accessing a real-world weather database to obtain a three-dimensional set of data elements, each data element having at least a location value and a liquid water content value; accessing field-of-view data representing a current field-of-view for a current frame; culling said data elements to determine which are within said field-of-view, to obtain a set of field-of-view data elements; sorting said field-of-view data elements to form a list of data elements in depth order; assigning a graphics primitive to each of said field-of-view data elements; covering an image plane with the graphic primitives associated with the frontmost of said field-of-view data elements, such that a certain percentage of said image plane is covered; repeating said covering step, using said field-of-view data elements in front to back order, until the image plane has been covered a predetermined number of times or until a predetermined number of said field-of-view data elements have been used; and assigning said field-of-view data elements to one or more depth bins on the basis of the results of said covering step, so as to generate a prioritized display list for said current frame; and repeating all of the above steps for each next frame, thereby providing said simulated display.