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US 2008/0165208 A1Published application
3-Dimensional graphic processing apparatus and operating method thereof
AssigneeSamsung Electronics Co., Ltd.
InventorsJae-Wan Bae, Yun-Seok Choi
Life of this patent
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Abstract
A graphic processing method may include clipping a first polygon with a near plane of a view volume to create a second polygon, clipping the second polygon with a far plane of the view volume to create a third polygon, and/or discriminating if a homogeneous coordinate of the third polygon is 0. The third polygon may be clipped to one of left, right, top, and bottom planes of the view volume if the homogeneous coordinate of the third polygon is 0.
Claims13
A graphic processing method comprising:
- clipping a first polygon with a near plane of a view volume to create a second polygon;
- clipping the second polygon with a far plane of the view volume to create a third polygon;
- discriminating if a homogeneous coordinate of the third polygon is 0;
- and
- clipping the third polygon to one of left, right, top, and bottom planes of the view volume if the homogeneous coordinate of the third polygon is 0.
2 more elements
A graphic processing apparatus comprising:
- a control circuit configured to generate control signals;
- a polygon view volume decider configured to determine if vertices of a first polygon are placed in a view volume in response to the control signals;
- and
- a vertex coordinate calculator configured to clip a polygon with a plurality of planes of the view volume in response to the control signals to generate vertex coordinate data for a new polygon,
- wherein, if the vertex coordinate calculator clips the first polygon with at least two planes of the view volume, the control circuit is configured to control the new polygon to be clipped with another plane if a homogeneous coordinate of the new polygon is 0.
2 more elements
Dependencies are inferred from the claim text.