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1. 发明授权

US06452595B1 Integrated graphics processing unit with antialiasing 有权
标题翻译：具有抗锯齿功能的集成图形处理单元
公开(公告)号：US06452595B1
公开(公告)日：2002-09-17
申请号：US09724206
申请日：2000-11-27
申请人： John S. Montrym , Douglas A. Voorhies , Steven E. Molnar
发明人： John S. Montrym , Douglas A. Voorhies , Steven E. Molnar
IPC分类号： G06T1560
CPC分类号： G06T11/40 , G06T15/005 , G06T15/04 , G06T15/50 , G06T15/503 , G06T15/506
摘要： A graphics pipeline system is provided for graphics processing. Such system includes a transform module adapted for receiving vertex data. The transform module serves to transform the vertex data from a first space to a second space. Coupled to the transform module is a lighting module which is positioned on the single semiconductor platform for performing lighting operations on the vertex data received from the transform module. Also included is a rasterizer coupled to the lighting module and positioned on the single semiconductor platform for rendering the vertex data received from the lighting module. During use, an antialiasing feature is implemented to improve a quality of the graphics rendering.
摘要翻译：为图形处理提供图形流水线系统。这种系统包括适于接收顶点数据的变换模块。变换模块用于将顶点数据从第一空间变换到第二空间。耦合到变换模块的是照明模块，其位于单个半导体平台上，用于对从变换模块接收的顶点数据进行照明操作。还包括耦合到照明模块并位于单个半导体平台上的光栅化器，用于渲染从照明模块接收的顶点数据。在使用期间，实现了抗锯齿功能，以提高图形渲染的质量。

2. 发明授权

US06992669B2 Integrated graphics processing unit with antialiasing 有权
公开(公告)号：US06992669B2
公开(公告)日：2006-01-31
申请号：US10198707
申请日：2002-07-17
申请人： John S. Montrym , Douglas A. Voorhies , Steven E. Molnar
发明人： John S. Montrym , Douglas A. Voorhies , Steven E. Molnar
IPC分类号： G06T17/00
CPC分类号： G06T11/40 , G06T15/005 , G06T15/04 , G06T15/50 , G06T15/503 , G06T15/506
摘要： A graphics pipeline system and method are provided for graphics processing. Such system includes a transform module adapted for receiving graphics data. The transform module serves to transform the graphics data from a first space to a second space. Coupled to the transform module is a lighting module which is positioned on the single semiconductor platform for performing lighting operations on the graphics data received from the transform module. Also included is a rasterizer coupled to the lighting module and positioned on the single semiconductor platform for rendering the graphics data received from the lighting module. During use, an antialiasing feature is implemented on the single semiconductor platform to improve a quality of the graphics rendering.

3. 发明授权

US09123173B2 Method for rasterizing non-rectangular tile groups in a raster stage of a graphics pipeline 有权
标题翻译：在图形管道的光栅阶段中对非矩形平铺组进行栅格化的方法
公开(公告)号：US09123173B2
公开(公告)日：2015-09-01
申请号：US11474161
申请日：2006-06-23
申请人： Justin S. Legakis , Franklin C. Crow , John S. Montrym , Douglas A. Voorhies
发明人： Justin S. Legakis , Franklin C. Crow , John S. Montrym , Douglas A. Voorhies
IPC分类号： G06T1/20 , G06T11/40
CPC分类号： G06T11/40 , G06T1/20 , G06T2207/20016
摘要： In a raster stage of a graphics pipeline, a method for rasterizing non-rectangular tile groups. The method includes receiving a graphics primitive for rasterization in a raster stage of a graphics processor. The graphics primitive is rasterized at a first level by generating a non-rectangular footprint comprising a set of pixels related to the graphics primitive. The graphics primitive is then rasterized at a second level by accessing the set of pixels and determining covered pixels out of the set of pixels. The raster stage subsequently outputs the covered pixels for rendering operations in a subsequent stage of the graphics processor.
摘要翻译：在图形流水线的光栅阶段，用于光栅化非矩形平铺组的方法。该方法包括在图形处理器的光栅级中接收用于光栅化的图形基元。图形原语通过生成包括与图形原语相关的一组像素的非矩形占空比在第一级被光栅化。然后，通过访问像素集合并确定像素集合中的被覆盖的像素，在第二层次上对图形原语进行光栅化。光栅级随后在图形处理器的后续级中输出被覆盖的像素以进行渲染操作。

4. 发明申请

US20070296726A1 Method for rasterizing non-rectangular tile groups in a raster stage of a graphics pipeline 有权
标题翻译：在图形管道的光栅阶段中对非矩形平铺组进行栅格化的方法
公开(公告)号：US20070296726A1
公开(公告)日：2007-12-27
申请号：US11474161
申请日：2006-06-23
申请人： Justin S. Legakis , Franklin C. Crow , John S. Montrym , Douglas A. Voorhies
发明人： Justin S. Legakis , Franklin C. Crow , John S. Montrym , Douglas A. Voorhies
IPC分类号： G06T1/20
CPC分类号： G06T11/40 , G06T1/20 , G06T2207/20016
摘要： In a raster stage of a graphics pipeline, a method for rasterizing non-rectangular tile groups. The method includes receiving a graphics primitive for rasterization in a raster stage of a graphics processor. The graphics primitive is rasterized at a first level by generating a non-rectangular footprint comprising a set of pixels related to the graphics primitive. The graphics primitive is then rasterized at a second level by accessing the set of pixels and determining covered pixels out of the set of pixels. The raster stage subsequently outputs the covered pixels for rendering operations in a subsequent stage of the graphics processor.
摘要翻译：在图形流水线的光栅阶段，用于光栅化非矩形平铺组的方法。该方法包括在图形处理器的光栅级中接收用于光栅化的图形基元。图形原语通过生成包括与图形原语相关的一组像素的非矩形占空比在第一级被光栅化。然后，通过访问像素集合并确定像素集合中的被覆盖的像素，在第二层次上对图形原语进行光栅化。光栅级随后在图形处理器的后续级中输出被覆盖的像素以进行渲染操作。

5. 发明授权

US07292242B1 Clipping with addition of vertices to existing primitives 有权
标题翻译：对现有原语加上顶点进行剪切
公开(公告)号：US07292242B1
公开(公告)日：2007-11-06
申请号：US10917093
申请日：2004-08-11
申请人： Craig M. Wittenbrink , Henry Packard Moreton , Douglas A. Voorhies , John S. Montrym , Vimal S. Parikh
发明人： Craig M. Wittenbrink , Henry Packard Moreton , Douglas A. Voorhies , John S. Montrym , Vimal S. Parikh
IPC分类号： G06T15/40
CPC分类号： G06T15/30
摘要： Clipping techniques introduce additional vertices into existing primitives without requiring creation of new primitives. For an input triangle with one vertex on the invisible side of a clipping surface, a quadrangle can be defined. The vertices of the quadrangle are the two internal vertices of the input triangle and two clipped vertices. For determining attribute values for pixel shading, three vertices of the quadrangle are selected, and a parameter value for an attribute equation is computed using the three selected vertices. For determining pixel coverage for the quadrangle, the three edges that do not correspond to the edge created by clipping are used.
摘要翻译：剪切技术将额外的顶点引入现有的基元，而不需要创建新的基元。对于在剪切表面的不可见侧有一个顶点的输入三角形，可以定义四边形。四边形的顶点是输入三角形的两个内部顶点和两个剪切顶点。为了确定像素阴影的属性值，选择四边形的三个顶点，并且使用三个选定的顶点来计算属性方程的参数值。为了确定四边形的像素覆盖率，使用与削波产生的边缘不对应的三个边。

6. 发明授权

US08933933B2 Optimizing a graphics rendering pipeline using early Z-mode 有权
标题翻译：使用早期Z模式优化图形渲染管道
公开(公告)号：US08933933B2
公开(公告)日：2015-01-13
申请号：US11430635
申请日：2006-05-08
申请人： Mark J. French , Emmett M. Kilgariff , Steven E. Molnar , Walter R. Steiner , Douglas A. Voorhies , Adam Clark Weitkemper
发明人： Mark J. French , Emmett M. Kilgariff , Steven E. Molnar , Walter R. Steiner , Douglas A. Voorhies , Adam Clark Weitkemper
IPC分类号： G06T15/40 , G06T15/00
CPC分类号： G06T15/405 , G06T15/005
摘要： One embodiment of the present invention sets forth an architecture for advancing the Z-test operation prior to pixel shading whenever possible. The current rendering state, as maintained by the setup engine, determines whether advancing the Z-test function above the shader engine for “early” Z-testing is possible or whether the Z-test function should be deferred until after shading operations for “late” Z-testing. Data is dynamically routed to each processing engine in the pipeline, so that the appropriate data flow for either early Z or late Z is dynamically constructed, as determined by the current rendering state. The same functional units are utilized in both early Z and late Z configurations.
摘要翻译：本发明的一个实施例阐述了在可能的情况下在像素着色之前推进Z检验操作的架构。由设置引擎维护的当前呈现状态确定是否可以在着色引擎之上前进Z检验功能以进行“早期”Z检验，或者Z检验功能是否应该延迟到“晚期”的阴影操作之后 “Z测试。数据在流水线中动态地路由到每个处理引擎，以便由当前呈现状态确定的早期Z或后期Z的适当数据流是动态构造的。早期Z和晚期Z配置都使用相同的功能单元。

7. 发明授权

US08692844B1 Method and system for efficient antialiased rendering 有权
标题翻译：用于高效抗锯齿渲染的方法和系统
公开(公告)号：US08692844B1
公开(公告)日：2014-04-08
申请号：US09675099
申请日：2000-09-28
申请人： Steven E. Molnar , David B. Kirk , John Stephen Montrym , Douglas A. Voorhies
发明人： Steven E. Molnar , David B. Kirk , John Stephen Montrym , Douglas A. Voorhies
IPC分类号： G09G5/00 , G06T11/20 , G06T11/40 , G09G5/14
CPC分类号： G06T11/203 , G06T11/40 , G09G5/14
摘要： A method and system are disclosed for antialiased rendering a plurality of pixels in a computer system. The method and system comprise providing a fixed storage area and providing a plurality of sequential format levels for the plurality of pixels within the fixed storage area. The plurality of format levels represent pixels with varying degrees of complexity in subpixel geometry visible within the pixel. A system and method in accordance with the present invention provides at least the following format levels: one-fragment format, used when one surface fully covers a pixel; two-fragment format, used when two surfaces together cover a pixel; and multisample format, used when three or more surfaces cover a pixel. The method and system further comprise storing the plurality of pixels at a lowest appropriate format level within the fixed storage area, so that a minimum amount of data is transferred to and from the fixed storage area. The method and system further comprise procedures for converting pixels from one format level to take into account newly rendered pixel fragments. All formats represent depth values in a consistent manner so that fragments rendered during later rendering passes match depth values resulting from rendering the same primitive in earlier passes. Thus, the invention enables high-quality antialiasing with minimal data transferred to and from the fixed storage area, while supporting multi-pass rendering.
摘要翻译：公开了一种用于在计算机系统中抗锯齿渲染多个像素的方法和系统。所述方法和系统包括提供固定存储区域并为固定存储区域内的多个像素提供多个顺序格式级别。多个格式级别表示在像素内可见的子像素几何形状具有不同程度的复杂度的像素。根据本发明的系统和方法至少提供以下格式级别：当一个表面完全覆盖像素时使用的单片段格式; 两片段格式，当两个表面一起覆盖一个像素时使用; 和多重采样格式，当三个或更多个表面覆盖像素时使用。所述方法和系统还包括将所述多个像素存储在所述固定存储区域内的最低适当格式级别，使得最小量的数据被传送到所述固定存储区域和从所述固定存储区域传送。该方法和系统还包括用于从一个格式级别转换像素以考虑新渲染的像素片段的过程。所有格式都以一致的方式表示深度值，以便在后续渲染过程中渲染的片段匹配在较早的通过中渲染相同原语而产生的深度值。因此，本发明能够以最小的数据传输到固定存储区域和从固定存储区域传输高质量的抗锯齿，同时支持多遍渲染。

8. 发明授权

US08854364B1 Tight depth range occlusion prediction system and method 有权
标题翻译：深度范围遮挡预测系统和方法
公开(公告)号：US08854364B1
公开(公告)日：2014-10-07
申请号：US11397528
申请日：2006-04-03
申请人： Douglas A. Voorhies
发明人： Douglas A. Voorhies
IPC分类号： G06T15/40 , G06T15/00 , G06T15/10 , G09G5/00
CPC分类号： G06T15/40
摘要： The range of depth values within the overlap of a convex polygon and a square or rectangular rasterization area can be determined by identifying whether the minimum and maximum depth values occur at the corners of the rasterization area or at intersections of the polygon's edges with the area's sides. By choosing between the corner and intersection for both the minimum and maximum depth limit, solving the depth plane equation at the chosen location, and clamping against the polygon's vertex depth range, a tight depth range describing the depth values within that overlap are obtained. That tight depth range is utilized to cull pixel values early in the pipeline, improving performance and power consumption.
摘要翻译：可以通过识别最小和最大深度值是否出现在光栅化区域的拐角处或多边形边缘与区域侧的交点处，来确定凸多边形和正方形或矩形光栅化区域的重叠内的深度值的范围。通过在最小和最大深度极限之间选择拐角和交点，求解所选位置的深度平面方程，并针对多边形的顶点深度范围进行夹紧，可以获得描述该重叠内的深度值的紧密深度范围。该深度范围用于在管道早期剔除像素值，从而提高性能和功耗。

9. 发明授权

US08294714B1 Accelerated rendering with temporally interleaved details 有权
标题翻译：加速渲染与时间交错的细节
公开(公告)号：US08294714B1
公开(公告)日：2012-10-23
申请号：US12493101
申请日：2009-06-26
申请人： Jonathan Bakdash , Qi Mo , David Luebke , Douglas A. Voorhies
发明人： Jonathan Bakdash , Qi Mo , David Luebke , Douglas A. Voorhies
IPC分类号： G06T15/00
CPC分类号： G06T15/00 , G06T15/005 , G06T2210/52 , G09G5/363 , G09G2340/0407 , G09G2360/08
摘要： One embodiment of the invention sets forth a mechanism for interleaving consecutive display frames rendered at complementary reduced resolutions. The GPU driver configures a command stream associated with a frame received from a graphics application for reduced frame rendering. The command stream specifies a nominal resolution at which the frame should be rendered. The reduced resolution associated with the frame is determined based on the reduced resolution of an immediately preceding frame (i.e., the complementary reduced resolution), if one exists, or on GPU configuration information. The GPU driver then modifies the command stream to specify the reduced resolution. The GPU driver also inserts an upscale command sequence specifying the nominal resolution into the command stream. Once the command stream is configured in such a manner, the GPU driver transmits the command stream to the GPU for reduced rendering.
摘要翻译：本发明的一个实施例提出了一种用于交替以互补的降低分辨率呈现的连续显示帧的机制。 GPU驱动程序配置与从图形应用程序接收的帧相关联的命令流，以减少帧渲染。命令流指定应该渲染帧的标称分辨率。与帧相关联的降低的分辨率基于即将存在的前一帧（即，互补的降低分辨率）的降低的分辨率，或者基于GPU配置信息来确定。然后，GPU驱动程序修改命令流以指定降低的分辨率。 GPU驱动程序还将指定标称分辨率的高级命令序列插入到命令流中。一旦以这种方式配置了命令流，GPU驱动程序将命令流传送到GPU以减少渲染。

10. 发明授权

US08004520B1 Occlusion prediction graphics processing system and method 有权
公开(公告)号：US08004520B1
公开(公告)日：2011-08-23
申请号：US10745160
申请日：2003-12-22
申请人： Douglas A. Voorhies , Svetoslav D. Tzvetkov
发明人： Douglas A. Voorhies , Svetoslav D. Tzvetkov
IPC分类号： G06T15/40
摘要： An occlusion prediction graphics processing system and method are presented in accordance with embodiments of the present invention. An occlusion prediction graphics processing method is utilized to predict which pixel values are eventually occluded before intermediate processing stages are performed on the pixel values. For example, occlusion results are predicted before the occlusion stage of a graphics pipeline. The occlusion prediction results are based upon an occlusion value received from later in a graphics processing pipeline (e.g., a raster operation stage). A convex polygonal prediction area can be established and a nearest vertex of the convex polygonal prediction area is selected for prediction analysis. Pixel values are removed or discarded from the pipeline based upon the occlusion prediction results and do not unnecessarily occupy processing resources. Removal of the pixel values from the pipeline includes pixels values associated with pixels in the convex polygonal prediction area. Pixel shading is performed on the remaining pixels.

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