Level of detail value calculating method and medium reducing power consumption, and 3-dimensional rendering system

A technology of level of detail and calculation method, applied in calculation, 3D modeling, 3D image processing, etc., can solve problems such as power consumption

Inactive Publication Date: 2008-03-05
SAMSUNG ELECTRONICS CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] As can be seen from Equation 1, the traditional LOD value calculation scheme requires multiplication and division operations, and therefore, consumes a lot of power

Method used

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  • Level of detail value calculating method and medium reducing power consumption, and 3-dimensional rendering system
  • Level of detail value calculating method and medium reducing power consumption, and 3-dimensional rendering system
  • Level of detail value calculating method and medium reducing power consumption, and 3-dimensional rendering system

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Embodiment Construction

[0029] Embodiments of the invention will now be described in detail, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to like parts throughout. The embodiments are described below in order to explain the present invention by referring to the figures.

[0030] Fig. 2 shows a rasterizer 2 according to an embodiment of the invention.

[0031] Referring to FIG. 2 , the rasterizer 2 may include, for example, a pitch converting unit 21 , a texture mapping unit 22 , an alpha testing unit 23 , a depth testing unit 24 , and a color mixing unit 25 . The rasterizer 2 is a component generally used in a 3-dimensional (3D) rendering system for rendering objects on a monitor screen into 3D graphics images. Rasterizer 2 may determine the values ​​of pixels that will appear on the screen.

[0032] Geometry processing should normally be performed before processing by rasterizer 2. In geometry processing, an object can be divided into polyg...

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Abstract

A system, method and medium renders an object into a 3-dimensional (3D) graphic image. The rendering system includes a polygon processing unit to calculate a plurality of LOD values of a plurality of fragments corresponding to a plurality of vertices of a predetermined polygon, among a plurality of fragments constructing the predetermined polygon, a span conversion unit to interpolate a plurality of LOD values of remaining fragments apart from the plurality of fragments corresponding to the vertices of the predetermined polygon, using the calculated LOD values, and a texture mapping unit to map one of a plurality of textures with various resolutions to a corresponding fragment of the fragments constructing the predetermined polygon, on the basis of the LOD values interpolated by the span conversion unit.

Description

technical field [0001] One or more embodiments of the present invention relate to a system for rendering an object as a 3-dimensional (3D) graphics image, and more particularly, to a method for calculating a level of detail (LOD) for texture mapping in the 3D rendering process. Value methods and systems. Background technique [0002] Techniques for rendering an object into a 3-dimensional (3D) graphics image include: geometric manipulation of the object; spacing transformations that determine values ​​corresponding to fragments in the polygons that make up each cell of the object, where each fragment corresponds to a pixel on a monitor screen; texture mapping by applying a texture corresponding to a prestored 2-dimensional (2D) image to an object; and color mixing by mixing the determined values ​​to determine the final value of each pixel . [0003] FIG. 1 is a diagram showing segments constituting triangles corresponding to conventional polygons. [0004] By performing ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06T15/10G06T1/20G06T15/00G06T15/04
CPCG09G5/393G06T15/04G09G5/026G06T15/00G06T17/10
Inventor 郑锡润金相德朴祐赞韩铎敦
Owner SAMSUNG ELECTRONICS CO LTD
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