G - Physics
09
B
G09B 9/30 (2006.01) G06T 15/50 (2006.01) G06F 15/72 (1990.01)
Patent
CA 2084067
ABSTRACT OF THE DISCLOSURE A method and apparatus for simulating the illumination effects of a vehicle mounted light source in an image displayed on a screen. The image is intended to represent the appearance of a model defined in a database in world space coordinates from an eyepoint position in world space, the model being defined in terms of a plurality of features each having predetermined attributes. The vehicle mounted light source is defined in terms of an origin and a direction in eyepoint space. For each feature potentially contributing to the image, the angular position of a point on that feature relative to the light source is calculated as the angle between the light source direction and a line drawn to that point from the light source. An illumination intensity for that point is determined by reference to the calculated angle, and the illumination intensity is reduced as a function of the distance from the eyepoint to the said point to provide a resultant intensity. The attributes of the feature at the said point are modulated as a function of the resultant intensity.
Baker Stephen John
Olive Graham John
Smith Jeffrey Nigel
Wood Karl Joseph
Marks & Clerk
Rediffusion Simulation Limited
LandOfFree
Image generator does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Image generator, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Image generator will most certainly appreciate the feedback.
Profile ID: LFCA-PAI-O-1973124