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公开(公告)号：KR100441081B1
公开(公告)日：2004-07-21
申请号：KR1020020045235
申请日：2002-07-31
Applicant: 학교법인연세대학교
Abstract: PURPOSE: A method for calculating a trigonometric function using a linear equation is provided to reduce an error range through a linear equation, thereby promptly generating video of better quality. CONSTITUTION: A section of an X-axis in a trigonometric function curved surface is equally divided. Values of crossing points where vertical straight lines at boundary points of the divided sections cross the trigonometric function curved surface are obtained. Values of a trigonometric function to values of the sections are obtained by using a straight line equation connecting neighboring points in the obtained crossing points. Color values of fragments are decided by the obtained values of the trigonometric function. The section of the X-axis in a trigonometric function curved surface ranges from 0 to 90 deg.
Abstract translation: 目的：提供一种使用线性方程来计算三角函数的方法，以通过线性方程来减小误差范围，由此迅速生成更好质量的视频。 构成：三角函数曲面中的X轴的一部分被等分。 获得分割部分的边界点处的垂直直线与三角函数曲面交叉的交点的值。 通过使用连接所获得的交叉点中的相邻点的直线方程来获得三角函数对各部分的值的值。 碎片的颜色值由获得的三角函数值决定。 三角函数曲面中X轴的截面范围为0到90度。
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公开(公告)号：KR1020030014516A
公开(公告)日：2003-02-19
申请号：KR1020010048545
申请日：2001-08-11
Applicant: 학교법인연세대학교
IPC: G06T17/00
CPC classification number: G06T1/60 , G06T7/90 , G06T2207/20
Abstract: PURPOSE: A system and a method for processing bump mapping are provided to reduce the amount of computation with respect to bump mapping using polar coordinate system. CONSTITUTION: A system for processing bump mapping includes the first and second computation units and a memory. The first computation unit receives a direction vector value of an incident light with respect to a polygon to be mapped, an intermediate vector value of the direction vector value and a point vector value, and a vertical vector value, and converts the direction vector value and intermediate vector value from a three-dimensional object space into a three-dimensional bump space. The memory stores a bump vector map having a perturbed normal vector value of pixels for the polygon and a look-up table having parameters. The second computation unit receives the converted direction vector value and intermediate vector value from the first computation unit and reads the perturbed normal vector value and required parameters from the bump vector map and memory, to compute a color value of each pixel of the polygon.
Abstract translation: 目的：提供一种用于处理凹凸贴图的系统和方法，以减少使用极坐标系的凹凸贴图的计算量。 构成：用于处理凹凸映射的系统包括第一和第二计算单元和存储器。 第一计算单元接收关于要映射的多边形的入射光的方向矢量值，方向矢量值的中间矢量值和点矢量值以及垂直矢量值，并且将方向矢量值和 将三维物体空间的中间向量值转换为三维凸起空间。 存储器存储具有用于多边形的像素的扰动法线矢量值的凸起矢量图和具有参数的查找表。 第二计算单元从第一计算单元接收转换的方向向量值和中间向量值，并从凸起矢量图和存储器读取扰动的法线矢量值和所需参数，以计算多边形的每个像素的颜色值。
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公开(公告)号：KR100507773B1
公开(公告)日：2005-08-17
申请号：KR1020030052016
申请日：2003-07-28
Applicant: 학교법인연세대학교
IPC: G06T1/00
Abstract: 본 발명은 극좌표계 방식으로 표현된 벡터들의 각 연산을 통한 새로운 범프 매핑 처리 장치 및 방법을 제공하기 위한 것으로서, 극 좌표계 형태로 표현된 벡터인 3차원 객체 공간 위의 빛의 방향 벡터와 중간 벡터를 구 상에서의 비례를 통한 회전값인 법선 벡터를 이용하여 3차원 참조 공간으로 회전 변환하여 참조 공간 위로 벡터인 =( ,
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Patent Agency Ranking
公开(公告)号：KR100420859B1
公开(公告)日：2004-03-02
申请号：KR1020010048545
申请日：2001-08-11
Applicant: 학교법인연세대학교
IPC: G06T17/00
Abstract: PURPOSE: A system and a method for processing bump mapping are provided to reduce the amount of computation with respect to bump mapping using polar coordinate system. CONSTITUTION: A system for processing bump mapping includes the first and second computation units and a memory. The first computation unit receives a direction vector value of an incident light with respect to a polygon to be mapped, an intermediate vector value of the direction vector value and a point vector value, and a vertical vector value, and converts the direction vector value and intermediate vector value from a three-dimensional object space into a three-dimensional bump space. The memory stores a bump vector map having a perturbed normal vector value of pixels for the polygon and a look-up table having parameters. The second computation unit receives the converted direction vector value and intermediate vector value from the first computation unit and reads the perturbed normal vector value and required parameters from the bump vector map and memory, to compute a color value of each pixel of the polygon.
Abstract translation: 目的：提供一种用于处理凹凸映射的系统和方法，以减少关于使用极坐标系统的凹凸映射的计算量。 构成：用于处理凹凸映射的系统包括第一和第二计算单元以及存储器。 第一计算单元接收关于要映射的多边形的入射光的方向矢量值，方向矢量值和点矢量值的中间矢量值以及垂直矢量值，并且将方向矢量值和 将三维物体空间的中间矢量值转换为三维凹凸空间。 存储器存储具有多边形的像素的扰动法向矢量值的凹凸矢量图和具有参数的查找表。 第二计算单元接收来自第一计算单元的转换方向矢量值和中间矢量值，并从撞击矢量图和存储器中读取扰动的法向矢量值和所需参数，以计算多边形的每个像素的颜色值。
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公开(公告)号：KR1020040011919A
公开(公告)日：2004-02-11
申请号：KR1020020045235
申请日：2002-07-31
Applicant: 학교법인연세대학교
Abstract: PURPOSE: A method for calculating a trigonometric function using a linear equation is provided to reduce an error range through a linear equation, thereby promptly generating video of better quality. CONSTITUTION: A section of an X-axis in a trigonometric function curved surface is equally divided. Values of crossing points where vertical straight lines at boundary points of the divided sections cross the trigonometric function curved surface are obtained. Values of a trigonometric function to values of the sections are obtained by using a straight line equation connecting neighboring points in the obtained crossing points. Color values of fragments are decided by the obtained values of the trigonometric function. The section of the X-axis in a trigonometric function curved surface ranges from 0 to 90 deg.
Abstract translation: 目的：提供一种使用线性方程计算三角函数的方法，以通过线性方程减少误差范围，从而及时生成更好质量的视频。 构成：三角函数曲面中的X轴的一部分是等分的。 获得分割部分的边界点的垂直直线与三角函数曲面交叉的交点的值。 通过使用连接所获得的交叉点中的相邻点的直线方程来获得三角函数对于各部分的值的值。 片段的颜色值由获得的三角函数值决定。 三角函数曲面中X轴的截面范围为0至90度。
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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
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。
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公开(公告)号：KR1020050013388A
公开(公告)日：2005-02-04
申请号：KR1020030052016
申请日：2003-07-28
Applicant: 학교법인연세대학교
IPC: G06T1/00
CPC classification number: G06T15/506 , G06T15/55 , G06T2219/2016
Abstract: PURPOSE: An apparatus and a method for bump mapping using a polar coordinate system are provided to avoid redefining a matrix for transformation to a coordinate system on tangent space, thereby reducing hardware costs largely and generating a realistic image. CONSTITUTION: Vector rotation parts(100) make rotation transformation of a light direction vector(L) and an intermediate vector(H) on three-dimensional object space to three-dimensional tangent space by using a normal vector as a rotation value in order to move transformed vectors(L',H') onto tangent space. The light direction vector and the intermediate vector are represented as a type of a polar coordinate system. A bump vector map part(200) fetches a transformed normal vector(N') preliminarily calculated in a preprocess procedure from a bump vector map which uses the polar coordinate system. An illumination calculation part(300) calculates an inner product of the transformed normal vector and the vectors moved onto the tangent space. The illumination calculation part adds strength of diffuse light and strength of specular light by utilizing the inner product and thereby calculates an illumination value.
Abstract translation: 目的：提供一种使用极坐标系进行凹凸贴图的装置和方法，以避免重新定义用于在切线空间上转换为坐标系的矩阵，从而大大降低硬件成本并产生逼真的图像。 构成：矢量旋转部件（100）通过使用法向矢量作为旋转值，将三维物体空间上的光方向矢量（L）和中间矢量（H）进行旋转变换为三维切线空间，以便 将变换矢量（L'，H'）移动到切线空间上。 光方向矢量和中间矢量被表示为极坐标系的一种类型。 凸起矢量图部分（200）从使用极坐标系的凸块矢量图获取在预处理过程中预先计算的变换法线矢量（N'）。 照度计算部（300）计算变换后的法线矢量与移动到切线空间的矢量的内积。 照明计算部通过利用内积加入漫射光的强度和镜面光的强度，由此计算照明值。
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公开(公告)号：KR100420858B1
公开(公告)日：2004-03-02
申请号：KR1020010048544
申请日：2001-08-11
Applicant: 학교법인연세대학교
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的映射的系统和方法，以通过共享高速缓冲存储器来提高凹凸映射和环境映射的性能。 用于处理三维渲染处理器的映射的系统包括用于计算从外部施加的纹理映射，凸点映射和环境映射之一的信息的距离级别的级别信息计算器（11），地址生成器（12 ），用于计算与距离等级相对应的外部映射信息的映射地址;高速缓冲存储器（13），用于存储与纹理映射，凹凸映射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），用于根据内插的内部映射信息变换凹凸映射信息的法向矢量的法向矢量变换器（15），照度计算单元 16），用于计算凹凸映射信息的照明值;以及颜色混合器（17），用于映射与纹理映射，凹凸映射和环境映射信息中的一个相对应的颜色值。
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