Patent ID: 7330182
Filing Date: 2008-02-12
Classification: G06T

Abstract:
1. A 3D-graphics processing method for processing 3D objects in a computer system, comprising steps of: defining a visible region, said visible region having a far plane and a near plane; performing a rendering process for a first object among said 3D objects, which lies across said far plane, to obtain a plurality of pixels; comparing depth values of said pixels with a depth value of said far plane; and discarding any of said pixels having a depth value greater than said depth value of said far plane from display; wherein a visible depth on display (Zs) of a pixel in said visible region is defined according to the following Z-conversion formula: where Z is an actual visible depth of said pixel, Zf is said depth value of said far plane, Zn is said depth value of said near plane, and e is a positive modifying coefficient.