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1. 发明授权

US07170513B1 System and method for display list occlusion branching 有权
标题翻译：显示列表遮挡分支的系统和方法
公开(公告)号：US07170513B1
公开(公告)日：2007-01-30
申请号：US10188697
申请日：2002-07-01
申请人： Douglas A. Voorhies , Matthew Craighead , Mark J. Kilgard , Edward Hutchins , Cass W. Everitt
发明人： Douglas A. Voorhies , Matthew Craighead , Mark J. Kilgard , Edward Hutchins , Cass W. Everitt
IPC分类号： G06T15/00
CPC分类号： G06T15/405 , G06T15/005
摘要： A system and method are provided for conditional branching in a hardware graphics pipeline. Initially, a plurality of graphics commands is received. Condition data is then affected based on at least some of the graphics commands utilizing the hardware graphics pipeline. At least one of the graphics commands is then conditionally skipping based on the condition data in response to another graphics command utilizing the hardware graphics pipeline.
摘要翻译：提供了一种在硬件图形流水线中进行条件分支的系统和方法。最初，接收多个图形命令。然后基于利用硬件图形流水线的至少一些图形命令影响条件数据。然后响应于利用硬件图形流水线的另一图形命令，至少一个图形命令基于条件数据有条件地跳过。

2. 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。

3. 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。

4. 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。

5. 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.

6. 发明授权

US06650325B1 Method, apparatus and article of manufacture for boustrophedonic rasterization 有权
标题翻译：用于波导光栅化的方法，装置和制造
公开(公告)号：US06650325B1
公开(公告)日：2003-11-18
申请号：US09454505
申请日：1999-12-06
申请人： Douglas A. Voorhies , Nicholas J. Foskett
发明人： Douglas A. Voorhies , Nicholas J. Foskett
IPC分类号： G06T1540
CPC分类号： G06T15/80 , G06T11/40
摘要： A method, apparatus and article of manufacture are provided for performing rasterization using alternating sense point traversal. Upon receipt of a primitive, i.e. a triangle, a plurality of points are positioned on or near the primitive. Such points define an enclosed convex region and may be located at corners of the convex region. In operation, the points and convex region are moved in an alternating manner for the purpose of identifying an area in the primitive for rendering pixels therein. In particular, the points are moved in a boustrophedonic manner.
摘要翻译：提供了一种使用交替感测点遍历来执行光栅化的方法，装置和制造。在接收到原语即三角形时，多个点位于原语上或附近。这些点限定了封闭的凸起区域并且可以位于凸起区域的角部。在操作中，点和凸区域以交替的方式移动，以便识别用于在其中渲染像素的图元中的区域。特别地，这些点以麻醉方式移动。

7. 发明授权

US5109481A Quadratic interpolation for shaded image generation 失效
标题翻译：用于阴影图像生成的四次插值
公开(公告)号：US5109481A
公开(公告)日：1992-04-28
申请号：US077202
申请日：1987-07-24
申请人： Olin G. Lathrop , David B. Kirk , Douglas A. Voorhies
发明人： Olin G. Lathrop , David B. Kirk , Douglas A. Voorhies
IPC分类号： G06T15/80
CPC分类号： G06T15/80
摘要： A system for quadratic and higher order interpolation of pixel color and other pixel values into a bitmap image enables enhanced shading for generation of realistic computer graphics images. The system incorporates modules for executing incremental evaluation of pixel values, utilizing forward differencing in N arbitrary directions of incremental evaluation. The system alternatively incorporates non-incremental evaluation elements for directly evaluating polynomials or executing a spline function of control points.
摘要翻译：用于将像素颜色和其他像素值的二次和更高阶插值到位图图像中的系统使得能够增强阴影以生成逼真的计算机图形图像。该系统包含用于执行像素值增量评估的模块，利用增量评估的N个任意方向的正向差分。该系统交替地包括用于直接评估多项式或执行控制点的样条函数的非增量评估元件。

8. 发明授权

US07064763B2 Single semiconductor graphics platform 无效
公开(公告)号：US07064763B2
公开(公告)日：2006-06-20
申请号：US10187226
申请日：2002-06-28
申请人： John Erik Lindholm , Simon Moy , Kevin Dawallu , Mingjian Yang , John Montrym , David B. Kirk , Paolo E. Sabella , Matthew N. Papakipos , Douglas A. Voorhies , Nicholas J. Foskett
发明人： John Erik Lindholm , Simon Moy , Kevin Dawallu , Mingjian Yang , John Montrym , David B. Kirk , Paolo E. Sabella , Matthew N. Papakipos , Douglas A. Voorhies , Nicholas J. Foskett
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 positioned on a single semiconductor platform for transforming graphics data from object space to screen space. Coupled to the transform module is a lighting module which is positioned on the single semiconductor platform for lighting the graphics data. Also included is a rasterizer coupled to the lighting module and positioned on the single semiconductor platform for rendering the graphics data.

9. 发明授权

US07050055B2 Single semiconductor graphics platform with blending and fog capabilities 有权
公开(公告)号：US07050055B2
公开(公告)日：2006-05-23
申请号：US10186557
申请日：2002-06-28
申请人： John Erik Lindholm , Simon Moy , Kevin Dawallu , Mingjian Yang , John Montrym , David B. Kirk , Paolo E. Sabella , Matthew N. Papakipos , Douglas A. Voorhies , Nicholas J. Foskett
发明人： John Erik Lindholm , Simon Moy , Kevin Dawallu , Mingjian Yang , John Montrym , David B. Kirk , Paolo E. Sabella , Matthew N. Papakipos , Douglas A. Voorhies , Nicholas J. Foskett
IPC分类号： G06T17/00
CPC分类号： G06T15/506 , G06T15/005 , G06T15/04 , G06T15/50 , G06T15/503
摘要： A graphics pipeline system and associated 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 lighting the graphics data. During use, the graphics pipeline system is capable of carrying out a fog and blending operation.

10. 发明授权

US06734861B1 System, method and article of manufacture for an interlock module in a computer graphics processing pipeline 有权
标题翻译：计算机图形处理流水线中互锁模块的系统，方法和制造
公开(公告)号：US06734861B1
公开(公告)日：2004-05-11
申请号：US09690101
申请日：2000-10-16
申请人： James M. Van Dyke , Douglas A. Voorhies , James E. Margeson, III , John Montrym
发明人： James M. Van Dyke , Douglas A. Voorhies , James E. Margeson, III , John Montrym
IPC分类号： G06T1700
CPC分类号： G06T15/005
摘要： A system, method and article of manufacture are afforded for providing an interlock module in a graphics pipeline. initially, first information is received indicative of a first set of pixels that overlap a primitive. Such first set of pixels are currently being processed in the graphics pipeline. Also received is second information indicative of a second set of pixels that overlap the primitive. The second set of pixels are ready for being inputted in the graphics pipeline for processing. Thereafter, the first information and the second information are evaluated, and the second set of pixels is conditionally processed based on the evaluation.
摘要翻译：提供了在图形管线中提供互锁模块的系统，方法和制造品。首先，接收到指示与图元重叠的第一组像素的第一信息。当前正在图形流水线中处理这样的第一组像素。还接收的是指示与图元重叠的第二组像素的第二信息。第二组像素准备好输入到图形管线中进行处理。此后，评估第一信息和第二信息，并且基于评估有条件地处理第二组像素。

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