KR970022847A - Span Rendering Method and Device for Graphics - Google Patents

Span Rendering Method and Device for Graphics Download PDF

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Publication number
KR970022847A
KR970022847A KR1019950039025A KR19950039025A KR970022847A KR 970022847 A KR970022847 A KR 970022847A KR 1019950039025 A KR1019950039025 A KR 1019950039025A KR 19950039025 A KR19950039025 A KR 19950039025A KR 970022847 A KR970022847 A KR 970022847A
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South Korea
Prior art keywords
span
rendering
pixel
spans
buffer
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KR1019950039025A
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Korean (ko)
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KR0165464B1 (en
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이진언
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김광호
삼성전자 주식회사
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Publication of KR970022847A publication Critical patent/KR970022847A/en
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    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T15/00—3D [Three Dimensional] image rendering
    • G06T15/10—Geometric effects
    • G06T15/40—Hidden part removal
    • G06T15/405—Hidden part removal using Z-buffer
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T15/00—3D [Three Dimensional] image rendering
    • G06T15/005—General purpose rendering architectures
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T2200/00—Indexing scheme for image data processing or generation, in general
    • G06T2200/28—Indexing scheme for image data processing or generation, in general involving image processing hardware

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Computer Graphics (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Geometry (AREA)
  • Image Generation (AREA)

Abstract

본 발명은 3차원 그래픽가속기에서 렌더링 속도를 향상시킬 수 있는 새로운 방식의 스팬렌더링방법 및 장치에 관한 것으로, 본 발명에 의한 그래픽을 위한 스팬렌더링방법은, 삼각형의 렌더링명령을 받아서, 복수의 스펜으로 분할하는 제1과정; 상기 분할된 스팬에 대하여 각각의 렌더링작업을 동시에 수행하는 제2과정; 상기 스팬렌더링에 의하여 구한 색상간을 각각의 픽셀버퍼에 동시에 기록하는 제3과정 및 상기 복수의 픽셀버퍼에 기록된 데이타를 동시에 처리하여 스크린에 표시할 픽셀데이타를 발생하는 제4과정을 포함함을 특징으로 한다.The present invention relates to a span rendering method and apparatus of a new method that can improve rendering speed in a three-dimensional graphics accelerator, the span rendering method for graphics according to the present invention, by receiving a rendering command of a triangle, A first process of dividing; A second process of simultaneously performing respective rendering operations on the divided spans; And a fourth process of simultaneously recording the colors obtained by the span rendering into each pixel buffer and a fourth process of simultaneously processing data recorded in the plurality of pixel buffers to generate pixel data to be displayed on the screen. It features.

본 발병에 의하면, 화면의 절대 Y값에 따라 Z버퍼 및 픽셀버퍼를 2N(N=1,2,3‥‥)개의 메모리블럭으로 분할하여 복수의 스팬을 병렬적으로 렌더링함으로써, 메모리블럭 및 가속기와의 인터페이스방법을 개선하여 스팬렌더링속도를 향상시킬 수 있다.According to the present invention, the Z buffer and the pixel buffer are divided into 2 N (N = 1,2,3 ...) memory blocks according to the absolute Y value of the screen, and a plurality of spans are rendered in parallel, thereby providing a memory block and The span rendering speed can be improved by improving the interface with the accelerator.

Description

그래픽을 위한 스팬렌더링방법 및 장치Span Rendering Method and Device for Graphics

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음As this is a public information case, the full text was not included.

제1도는 본 발명에 의한 멀티스팬 렌더링장치의 구성블럭도.1 is a block diagram of a multi-span rendering apparatus according to the present invention.

Claims (7)

삼각형의 렌더링명령을 받아서, 복수의 스팬으로 분할하는 제1과정; 상기 분할된 스팬에 대하여 각각의 렌더링작업을 동시에 수행하는 제2과정; 상기 스팬렌더링에 의하여 구한 색상값을 각각의 픽셀버퍼에 동시에 기록하는 제3과정; 및 상기 복수의 픽셀버퍼에 기록된 데이타를 동시에 처리하여 스크린에 표시할 픽셀데이타를 발생하는 제4과정을 포함함을 특징으로 하는 그래픽을 위한 스팬렌더링방법.A first step of receiving a rendering command of a triangle and dividing it into a plurality of spans; A second process of simultaneously performing respective rendering operations on the divided spans; A third step of simultaneously recording the color values obtained by the span rendering into each pixel buffer; And a fourth process of simultaneously processing data recorded in the plurality of pixel buffers to generate pixel data to be displayed on a screen. 제1항에 있어서 상기 제1과정은 스팬(수평성분)의 Y값에 따라 스팬을 분할함을 특징으로 하는 그래픽을 위한 스팬렌더링방법.The method of claim 1, wherein the first process divides the span according to the Y value of the span (horizontal component). 삼각형의 렌더링명령을 받아 적어도 2 이상의 스팬으로 분할하고, 분할된 각 스팬에 대한 정보를 동시에 출력하기 위한 스팬발생수단; 상기 분할된 스팬에 대한 정보가 각각 입력되어 입력된 스팬을 상기 정보에 따라 각각 렌더링하기 위한, 상기 스팬분할수에 대응하는 복수의 수팬렌더링수단 및 상기 스팬렌더링수단에 의한 스팬렌더링에 따라 스크린에 나타낼 픽셀데이타를 저장하기 위한, 상기 스팬렌더링수단에 대응하는 복수의 저장수단을 구비하여, 상기 스팬발생수단에서 발생된 복수의 스팬들을 병렬방식으로 동시에 렌더링처리함을 특징으로 하는 그래픽을 위한 스팬렌더링장치.Span generating means for receiving a rendering command of a triangle and dividing it into at least two spans and simultaneously outputting information on each divided span; Information about the divided spans is input to be displayed on the screen according to the span rendering by the plurality of male rendering means and the span rendering means, respectively, for rendering the input span according to the information. And a plurality of storage means corresponding to the span rendering means for storing pixel data, and simultaneously rendering the plurality of spans generated by the span generating means in a parallel manner. . 제3항에 있어서, 상기 스팬발생수단은 스팬(수평성분)의 Y값에 따라 스팬을 분할함을 특징으로 하는 그래픽을 위한 스팬렌더링장치.4. The span rendering apparatus according to claim 3, wherein the span generating means divides the span according to the Y value of the span (horizontal component). 제3항에 있어서, 상기 스팬발생수단에서의 스팬분할수를 2로 하고, 하나는 짝수번째 스팬을 그리고 다른 하나는 홀수번째 스팬을 번갈아 지정하여, 짝수번째 스팬 및 홀수번째 스팬에 대한 정보를 동시에 출력함을 특징으로 하는 그래픽을 위한 스팬렌더링장치.4. The method according to claim 3, wherein the span fraction in the span generating means is set to 2, one for the even span, and the other for the odd span, alternately specifying the information about the even span and the odd span. Span rendering device for graphics characterized in that the output bin. 제3항에 있어서, 상기 저장수단은 각 픽셀에 대판 관찰자로부터의 거리를 정규화한 값으로 저장하는 Z버퍼; 스크린에 표시되는 화소의 색상을 저장하는 픽셀버퍼; 및 텍스춰매핑시 객체에 입혀질 이미지를 저장하는 텍스춰이미지버퍼를 상기 스팬렌더링수단에 대응하여 각각 구비함을 특징으로 하는 그래픽을 위한 스팬렌더링장치.4. The apparatus of claim 3, wherein the storage means comprises: a Z-buffer for storing each pixel as a normalized value from a large observer; A pixel buffer for storing the color of the pixel displayed on the screen; And a texture image buffer for storing an image to be applied to an object during texture mapping, respectively corresponding to the span rendering means. 제6항에 있어서, 상기 텍스춰이미지버퍼는 상기 스팬렌더링수단에 대응하는 복수의 읽기포트를 가진 하나의 메모리로 구성됨을 특징으로 하는 그래픽을 위한 스팬렌더링장치.The span rendering apparatus of claim 6, wherein the texture image buffer comprises one memory having a plurality of read ports corresponding to the span rendering means. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019950039025A 1995-10-31 1995-10-31 Apparatus and method of span rendering for graphics KR0165464B1 (en)

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100382107B1 (en) * 2000-08-26 2003-05-01 학교법인연세대학교 method and device of consistency buffer for high performance 3D graphic accelerator
KR100420856B1 (en) * 2001-01-26 2004-03-02 학교법인연세대학교 parallel rendering machines supporting hardware accelerated order independent transparency
KR100441080B1 (en) * 2002-07-31 2004-07-21 학교법인연세대학교 operation method of pixel cache architecture in three-dimensional graphic accelerator
KR100497557B1 (en) * 1996-12-27 2005-09-30 소니 가부시끼 가이샤 Writing device and drawing method
KR100703709B1 (en) * 2005-06-02 2007-04-06 삼성전자주식회사 Apparatus and method for processing graphics, and computer readable medium storing the same

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100497557B1 (en) * 1996-12-27 2005-09-30 소니 가부시끼 가이샤 Writing device and drawing method
KR100382107B1 (en) * 2000-08-26 2003-05-01 학교법인연세대학교 method and device of consistency buffer for high performance 3D graphic accelerator
KR100420856B1 (en) * 2001-01-26 2004-03-02 학교법인연세대학교 parallel rendering machines supporting hardware accelerated order independent transparency
KR100441080B1 (en) * 2002-07-31 2004-07-21 학교법인연세대학교 operation method of pixel cache architecture in three-dimensional graphic accelerator
KR100703709B1 (en) * 2005-06-02 2007-04-06 삼성전자주식회사 Apparatus and method for processing graphics, and computer readable medium storing the same

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