Abstract:
PURPOSE: An image processing device and a method thereof are provided to determine that primitive included in a rendering image corresponds which pixels on a screen with a little operation amount. CONSTITUTION: A bounding volume intersecting determination unit (250) determines whether a bounding volume including a target primitive selected among a plurality of the primitives and beams are intersected or not. If the bounding volume and the beams are intersected, a primitive intersecting decision unit (260) determines that the target primitive is intersected with the beams. If the beams and the primitive are intersected, a shadowing unit (270) determines a color of the corresponding pixel. [Reference numerals] (210) Vortex interpolation; (220) As update; (230) External memory; (240) Light beam generator; (250) Bounding volume crossing decision unit; (260) Primitive crossing decision unit; (270) Shadowing unit