公开(公告)号：KR100384741B1

公开(公告)日：2003-05-22

申请号：KR1020000051066

申请日：2000-08-31

Applicant: 학교법인연세대학교

Inventor： 한탁돈 ,  양성봉 ,  이신준 ,  박우찬

IPC: G06T9/00

Abstract: PURPOSE: A spiral type phase compression method for the 3 dimensional graphic data is provided to execute a compression by converting a triangle mesh into a triangle strip of spiral type in order to dissolve the bottleneck of a memory bus bandwidth while transferring data to a 2 dimensional graphic pipeline. CONSTITUTION: The method comprises steps of selecting a start or restart triangle at random and initializing a search, searching a near triangle being not added to a strip, examining a vertex of the searched triangle, increasing the degree and moving the base vertex pointer, adding a present chain pointer and triangle to the strip, searching the triangle near the base vertex, adding the searched triangle to a triangle strip, moving the base vertex and searching the remaining triangle if a triangle not added to the triangle strip exists.

Abstract translation: 目的：提供用于三维图形数据的螺旋型相位压缩方法，以通过将三角形网格转换成螺旋型三角形条来执行压缩，以便在将数据传输到二维的同时消除存储器总线带宽的瓶颈 图形管道。 构成：该方法包括以下步骤：随机选择一个开始或重新开始的三角形并初始化一个搜索，搜索一个未添加到一个条上的近三角形，检查所搜索的三角形的一个顶点，增加该程度并移动该基顶点指针， 一个当前的链指针和三角形带，搜索基座顶点附近的三角形，将搜索到的三角形添加到三角形条中，移动基本顶点并搜索剩余的三角形，如果没有添加到三角形条上的三角形存在。

公开(公告)号：KR100382108B1

公开(公告)日：2003-05-01

申请号：KR1020000035095

申请日：2000-06-24

Applicant: 학교법인연세대학교

Inventor： 박우찬 ,  한탁돈

IPC: G06T17/10

CPC classification number: G06T15/005 ,  G06T15/40

Abstract: A 3D graphic accelerator and a method for processing a graphic acceleration using the same is provided in which the inputted primitives are geometrically processed, and existence of any transparent primitives or dominance/rarity of opaque primitives is determined among the geometrically processed primitives. The primitives are rendered in an object-order style and an image-order style in accordance with the determination. The information on the rendered primitives is stored in a corresponding frame buffer and a bucket, and the rendered primitives are display-refreshed. Thus, the 3D graphic accelerator with order- independent transparency and high performance is obtained.

Abstract translation: 提供了一种3D图形加速器以及使用该图形加速器处理图形加速的方法，其中输入的图元被几何地处理，并且在几何处理的图元之间确定存在任何透明图元或不透明图元的优势/稀疏。 根据该确定，基元以对象顺序样式和图像顺序样式呈现。 关于渲染基元的信息被存储在相应的帧缓冲器和桶中，并且渲染的基元被显示刷新。 因此，获得了具有与顺序无关的透明度和高性能的3D图形加速器。

公开(公告)号：KR100382106B1

公开(公告)日：2003-05-01

申请号：KR1020000039871

申请日：2000-07-12

Applicant: 학교법인연세대학교

Inventor： 한탁돈 ,  박우찬

IPC: G06T17/00

Abstract: PURPOSE: An MPEG(Moving Picture Experts Group)-based 3D graphic accelerator is provided to accelerate efficiently 3D graphic data on an MPEG-based HDTV(High Definition TeleVision) or a DTV(Digital TeleVision) by mounting a 3D graphic accelerator in a video decoder. CONSTITUTION: A 3D graphic accelerator(200) outputs 3D graphic data by processing inputted 3D primitives geometrically or rendering the inputted 3D primitives. A video decoder(100) outputs decoded video data by decoding inputted video bit streams. A multiplexer(109) outputs the 3D graphic data and the decoded video data. A frame memory(20) divides the 3D graphic data and the decoded video data into current images and previous images and stores the divided current images and the divided previous images. A display processing portion(110) performs a signal processing operation for the images stored in the frame memory(20).

Abstract translation: 目的：提供基于MPEG（运动图像专家组）的3D图形加速器，通过在视频中安装3D图形加速器，可在基于MPEG的HDTV（高清晰度电视）或DTV（数字电视）上高效加速3D图形数据 解码器。 构成：3D图形加速器（200）通过几何处理输入的3D基元或渲染输入的3D基元来输出3D图形数据。 视频解码器（100）通过解码输入的视频比特流来输出解码的视频数据。 多路复用器（109）输出3D图形数据和解码的视频数据。 帧存储器（20）将3D图形数据和解码的视频数据划分为当前图像和先前图像，并存储划分的当前图像和划分的先前图像。 显示处理部分（110）对存储在帧存储器（20）中的图像执行信号处理操作。

公开(公告)号：KR1020030014515A

公开(公告)日：2003-02-19

申请号：KR1020010048544

申请日：2001-08-11

Applicant: 학교법인연세대학교

Inventor： 이길환 ,  이승기 ,  박우찬 ,  한탁돈 ,  이문기 ,  정우남 ,  김신덕

IPC: G06T15/00 ,  G06T1/60

Abstract: PURPOSE: A system and a method for processing mapping of a three-dimensional rendering processor are provided to improve performance of bump mapping and environment mapping by sharing a cache memory. CONSTITUTION: A system for processing mapping of a three-dimensional rendering processor includes a level information calculator(11) for calculating a distance level of information of one of texture mapping, bump mapping and environment mapping applied from the outside, an address generator(12) for calculating a map address of the external mapping information corresponding to the distance level, and a cache memory(13) storing inner mapping information corresponding to the texture mapping, bump mapping and environment mapping. The system further includes an interpolator(14) for interpolating the inner mapping information read from the cache memory, a normal vector transformer(15) for transforming normal vector of the bump mapping information according to the interpolated inner mapping information, an illumination computation unit(16) for computing an illumination value of the bump mapping information, and a color mixer(17) for mapping a color value corresponding to one of the texture mapping, bump mapping and environment mapping information.

Abstract translation: 目的：提供一种用于处理三维渲染处理器映射的系统和方法，以通过共享高速缓冲存储器来改善凹凸贴图和环境映射的性能。 构成：用于处理三维渲染处理器的映射的系统包括：级别信息计算器（11），用于计算从外部施加的纹理映射，凹凸贴图和环境映射之一的信息的距离级别，地址生成器（12） ），用于计算对应于所述距离级别的外部映射信息的映射地址;以及高速缓冲存储器（13），其存储与所述纹理映射，凹凸贴图和环境映射相对应的内部映射信息。 该系统还包括用于内插从高速缓冲存储器读取的内部映射信息的内插器（14），用于根据插值的内部映射信息来转换凹凸贴图信息的法线向量的法向量变换器（15），照明计算单元 16），以及用于映射与纹理映射，凹凸贴图和环境映射信息之一相对应的颜色值的颜色混合器（17），用于计算凹凸贴图信息的照明值。

公开(公告)号：KR1020030006212A

公开(公告)日：2003-01-23

申请号：KR1020010041902

申请日：2001-07-12

Applicant: 학교법인연세대학교

Inventor： 한탁돈 ,  박우찬 ,  이길환 ,  김일산 ,  양성봉

IPC: G06T15/04 ,  G06T19/00

CPC classification number: G06T15/40

Abstract: PURPOSE: A method and an apparatus for processing pixel rasterization of a three-dimensional rendering processor are provided to remove execution of unnecessary texture mapping by executing a first depth examination before texture mapping process. CONSTITUTION: A method for processing pixel rasterization of a three-dimensional rendering processor includes the steps of inputting the present fragment image information from the outside(S100); examining whether the previous fragment image information exist, which corresponding to an address of the input present fragment image information(S101); if not, promptly texture-mapping the present fragment image information, if exist, deciding a depth value of the present fragment image information before texture-mapping the present fragment image information(S102-S103); deciding a transparency value of the texture-mapped fragment image information(S104); examining whether the previous fragment image information exist, which corresponding to the address of the input present fragment image information(S108); if exist, deciding the depth value of the present fragment image information(S109); storing the determined depth value of the present fragment image information(S106); and deciding and storing a color value of the present fragment image information(S107).

Abstract translation: 目的：提供一种用于处理三维渲染处理器的像素光栅化的方法和装置，以通过在纹理映射处理之前执行第一深度检查来消除不必要的纹理映射的执行。 构成：用于处理三维渲染处理器的像素光栅化的方法包括从外部输入当前片段图像信息的步骤（S100）; 检查是否存在与输入的当前片段图像信息的地址相对应的先前片段图像信息（S101）; 如果不存在，则对当前片段图像信息进行快速纹理映射（如果存在），则在纹理映射当前片段图像信息之前确定当前片段图像信息的深度值（S102〜S103）。 决定纹理映射片段图像信息的透明度值（S104）; 检查是否存在与输入的当前片段图像信息的地址相对应的先前片段图像信息（S108）; 如果存在，则确定当前片段图像信息的深度值（S109）; 存储所确定的本片段图像信息的深度值（S106）; 并确定并存储本片段图像信息的颜色值（S107）。

公开(公告)号：KR1020020063057A

公开(公告)日：2002-08-01

申请号：KR1020010003781

申请日：2001-01-26

Applicant: 학교법인연세대학교

Inventor： 박우찬 ,  한탁돈

IPC: G06T19/00

Abstract: PURPOSE: A parallel rendering accelerator supplying order independent transparency in hardware is provided to introduce a three-dimensional parallel rendering accelerator supporting primitives containing transparency in hardware, so as to generate three-dimensional graphic images. CONSTITUTION: A rendering accelerator subsystem(100) comprises a plurality of object PE(Processing Element) processors(110-140) rendering inputted primitives using an object order method and at least one image PE processor(180) rendering inputted primitives using an image order method. A frame buffer subsystem(200) composites each result rendered in the rendering accelerator subsystem for storage in frame buffers. A display unit(300) delivers data of the frame buffer subsystem to a display to perform display refresh. The each object PE processor is composed of a GE(Geometry Engine,150) performing geometry processing, an ORE(Object Order Rendering Engine) processing object order rendering and a memory(170) necessary for three-dimensional acceleration. And the image PE processor is composed of a GE(150) performing geometry processing and bucket sorting, an IRE(Image Order Rendering Engine,190) processing image order rendering and a memory(170) necessary for three-dimensional acceleration.

Abstract translation: 目的：提供一种在硬件中提供独立透明度的平行渲染加速器，以引入支持在硬件中包含透明度的原语的三维并行渲染加速器，以便生成三维图形图像。 构成：渲染加速器子系统（100）包括使用对象顺序方法渲染输入的图元的多个对象PE（处理元件）处理器（110-140）和使用图像顺序渲染输入的图元的至少一个图像PE处理器（180） 方法。 帧缓冲子系统（200）将呈现在渲染加速器子系统中的每个结果合成，用于存储在帧缓冲器中。 显示单元（300）将帧缓冲器子系统的数据传送到显示器以执行显示刷新。 每个对象PE处理器由执行几何处理的GE（几何引擎150），处理对象顺序渲染的ORE（对象订单渲染引擎）和三维加速所需的存储器（170）组成。 图像PE处理器由执行几何处理和桶分类的GE（150），处理图像顺序渲染的IRE（图像顺序渲染引擎，190）和三维加速所需的存储器（170）组成。

公开(公告)号：KR1020020001072A

公开(公告)日：2002-01-09

申请号：KR1020000035095

申请日：2000-06-24

Applicant: 학교법인연세대학교

Inventor： 박우찬 ,  한탁돈

IPC: G06T17/10

CPC classification number: G06T15/005 ,  G06T15/40

Abstract: PURPOSE: A 3-dimensional graphic accelerator and a graphic acceleration processing method thereof are provided to have an order independent transparency as well as a high performance. CONSTITUTION: First, inputted primitives are geometrically processed(s100). Then, it is determined whether or not transparent primitives exist in the geometrically processed primitives or whether or not opaque primitives are many(s200). Next, in accordance with the determined result, the primitives are processed by object order rendering and image order rendering, and information related to the rendered primitives is stored in corresponding frame buffer and bucket(s300). Finally, the display refresh of the rendering processed primitives is performed(s500). By this method, a high performance 3-dimensional graphic accelerator including order independent transparency.

Abstract translation: 目的：提供三维图形加速器及其图形加速处理方法以具有订单独立的透明度以及高性能。 构成：首先，输入的原语被几何处理（s100）。 然后，确定透明基元是否存在于几何处理的图元中，或者是否透明图元是否很多（s200）。 接下来，根据确定的结果，通过对象顺序渲染和图像顺序渲染处理图元，并且将与所呈现的图元相关的信息存储在相应的帧缓冲器和存储桶中（s300）。 最后，执行渲染处理的图元的显示刷新（s500）。 通过这种方法，一种高性能的三维图形加速器，包括有序的独立透明度。