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1.发明授权Method and system for depth complexity reduction in a graphics rendering system 失效图形渲染系统中深度复杂度降低的方法和系统
公开(公告)号：US5808617A
公开(公告)日：1998-09-15
申请号：US671411
申请日：1996-06-27
申请人： Mark L. Kenworthy , James T. Kajiya
发明人： Mark L. Kenworthy , James T. Kajiya
CPC分类号： G06T11/001 , G06T11/40 , G06T13/80 , G06T15/005 , G06T15/04 , G06T15/60
摘要： A method for depth complexity reduction includes inserting checkpoints between depth sorted object sections in a stream of geometric primitives. In response to receiving a checkpoint while rasterizing primitives for an image region, coverage data stored for the image region is checked to determine whether each pixel in the image region is fully covered. If so, then additional primitives for the image region can be ignored to avoid rendering occluded geometry.
摘要翻译： 一种用于深度复杂度降低的方法包括在几何图元流中的深度排序的对象部分之间插入检查点。 响应于在对图像区域的图元进行光栅化的同时接收检查点，检查为图像区域存储的覆盖数据，以确定图像区域中的每个像素是否被完全覆盖。 如果是这样，则可以忽略图像区域的附加原语，以避免渲染封闭的几何。
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公开(公告)号：US5864342A
公开(公告)日：1999-01-26
申请号：US671497
申请日：1996-06-27
申请人： James T. Kajiya , John G. Torborg, Jr. , Michael A. Toelle , Kent E. Griffin , Mark L. Kenworthy , John M. Snyder , Conal M. Elliott
发明人： James T. Kajiya , John G. Torborg, Jr. , Michael A. Toelle , Kent E. Griffin , Mark L. Kenworthy , John M. Snyder , Conal M. Elliott
CPC分类号： G06T11/001 , G06T11/40 , G06T13/80 , G06T15/005 , G06T15/04 , G06T15/60
摘要： A method for rendering graphical objects in a scene to generate a display images includes dividing the geometric primitives of models in a scene among portions or "chunks" of the view space to which the primitives will be rendered, and then rendering geometry referenced to the chunks in series in a common depth buffer. Geometry for a chunk can be rendered, including sophisticated anti-aliasing and translucency computations, using a minimum of memory. Serially rendering object geometry in chunks provides an effective form of compression because pixel fragments can be generated for one chunk at a time and then resolved. Pixel fragments can be resolved in a post-processing step for one chunk while primitives for another chunk are rasterized.
摘要翻译： 用于在场景中渲染图形对象以生成显示图像的方法包括将场景中的模型的几何基元划分到要渲染图元的视图空间的部分或“块”之间，然后再绘制参考块的几何图形 在一个普通的深度缓冲器中串联。 可以使用最少的内存渲染块的几何，包括复杂的抗锯齿和半透明度计算。 以块为单位呈现对象几何，提供了有效的压缩形式，因为可以一次为一个块生成像素片段，然后解析。 可以在一个块的后处理步骤中解析像素片段，而另一个块的图元被光栅化。
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公开(公告)号：US5471567A
公开(公告)日：1995-11-28
申请号：US741999
申请日：1991-08-08
CPC分类号： G06T15/503
摘要： Depth buffered anti-aliasing in a real time image generation system utilizing two separate buffers, one for combining attributes of object pixel definitions which are of less than full coverage and another for storing the attributes of each new object pixel definition which is of full coverage and which is closer to the viewpoint than any attributes currently stored. If the depth value in the partial buffer is closer the viewpoint than that in the full buffer, a set of attributes is output which is a weighted mixture of those stored in the two buffers.
摘要翻译： 利用两个单独的缓冲器的实时图像生成系统中的深度缓冲的抗混叠，一个用于组合小于全覆盖的对象像素定义的属性，另一个用于存储全覆盖的每个新对象像素定义的属性， 它比当前存储的任何属性更接近视点。 如果部分缓冲器中的深度值比全缓冲器中的深度值更接近，则输出一组属性，这是存储在两个缓冲器中的那些属性的加权混合。
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4.发明授权Method and system for accessing texture data in environments with high latency in a graphics rendering system 失效用于在图形渲染系统中访问具有高延迟的环境中的纹理数据的方法和系统
公开(公告)号：US5880737A
公开(公告)日：1999-03-09
申请号：US670553
申请日：1996-06-27
申请人： Kent E. Griffin , Mark L. Kenworthy , James E. Veres , Joseph W. Chauvin , Michael A. Toelle , Howard Good
发明人： Kent E. Griffin , Mark L. Kenworthy , James E. Veres , Joseph W. Chauvin , Michael A. Toelle , Howard Good
CPC分类号： G06T11/001 , G06T11/40 , G06T13/80 , G06T15/005 , G06T15/04 , G06T15/60
摘要： A system for accessing texture data in a graphics rendering system allows texture data to be stored in memories with high latency or in a compressed format. The system utilizes a texture cache to temporarily store blocks of texture data retrieved from an external memory during rendering operations. In one implementation, geometric primitives are stored in a queue long enough to absorb the latency of fetching and possibly decompressing a texture block. The geometric primitives are converted into texture block references, and these references are used to fetch texture blocks from memory. A rasterizer rasterizes each geometric primitives as the necessary texture data becomes available in the texture cache. In another implementation, geometric primitives are converted into pixels, including a pixel address, color data, and a texture request. These pixels are stored in a queue long enough to absorb the latency of a texture block fetch. The texture requests are read from the queue and used to fetch the appropriate texture blocks. As texture data becomes available in the texture cache, the texture data is sampled as necessary and combined with the pixel data read from the queue to compute output pixels.
摘要翻译： 用于在图形渲染系统中访问纹理数据的系统允许纹理数据以高延迟或压缩格式存储在存储器中。 该系统利用纹理缓存临时存储在渲染操作期间从外部存储器检索的纹理数据块。 在一个实现中，几何基元被存储在队列中足够长的时间以吸收提取的延迟并且可能解压缩纹理块。 几何基元被转换为纹理块引用，这些引用用于从内存中获取纹理块。 当纹理缓存中必需的纹理数据变得可用时，光栅化器会栅格化每个几何图元。 在另一个实现中，几何基元被转换成像素，包括像素地址，颜色数据和纹理请求。 这些像素被存储在足够长的队列中以吸收纹理块提取的等待时间。 从队列中读取纹理请求，并用于获取适当的纹理块。 随着纹理数据在纹理高速缓存中变得可用，纹理数据根据需要进行采样，并与从队列读取的像素数据组合以计算输出像素。
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5.发明授权
公开(公告)号：US5493643A
公开(公告)日：1996-02-20
申请号：US237286
申请日：1994-05-03
申请人： Brian T. Soderberg , Dale D. Miller , Douglas Pheil , Kent Cauble , Mark N. Heinen , Mark L. Kenworthy
发明人： Brian T. Soderberg , Dale D. Miller , Douglas Pheil , Kent Cauble , Mark N. Heinen , Mark L. Kenworthy
CPC分类号： G06T1/20 , G06T15/005 , G09B9/003 , G09B9/301
摘要： An image generator architecture in which tri-level fixed interleave processing provides medium grain parallelism for polygon, tiling, and pixel operations. Input data at each stage are divided into spatially distributed subsets that are interleaved among parallel processors using a fixed, precalculated mapping that minimizes correlation of local scene complexity with any one processor. The present tri-level fixed interleave processing architecture divides a processing task into a pseudo-random, fixed interleaved pattern of regions that are assigned to different processors. Each processor processes many of these randomly located regions. The assignment of processors to regions is a fixed repeating pattern. The highest level of fixed interleave processing is the allocation of fixed-size database regions (area modules) to polygon processors. The next level relates to image sub-region fixed interleave processing. At this level, the displayed image is divided into small sub-regions that are assigned to tilers in a pseudo-random, but fixed manner. This levels the load across all pixel processors. Typically, tilers process a large contiguous area of the image. The present invention uses small sub-regions (64.times.64 pixels) and assigns many sub-regions from different channels to a single tiler. Each tiler maintains equal loading .even with localized regions of high pixel processing. The third level relates to two-by-two pixel, fixed interleave processing. The image is further divided into 2.times.2 pixel blocks spread across multiple pixel operators on a tiler. This fine grain parallelism, in a fixed pseudo-random orientation, ensures equal loading across all pixel processors. The second aspect of the present invention is the use of polygon and pixel distribution buses. Maximum image generator configurability, expansion, and efficient processing is required for a variety of simulator configurations used in networked training environments. To accomplish this, distribution buses are implemented between all graphics processing stages.
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公开(公告)号：US07684962B2
公开(公告)日：2010-03-23
申请号：US11744785
申请日：2007-05-04
申请人： Mark L. Kenworthy
发明人： Mark L. Kenworthy
IPC分类号： G21C17/00
CPC分类号： G06F11/3003 , G06F9/4411 , G06F11/302 , G06Q30/00 , G06Q30/0283
摘要： Techniques and tools for rating computer products are described. For example, software ratings are based on subjective evaluations to determine computer system requirements for a positive user experience, while a computer running a capability tool rates a computer system's (or hardware component's) ability to run software. A capability rating for hardware is determined by comparing a set of features and performance results with capability rating requirements. In another aspect, a capability rating is communicated using a standardized presentation. In another aspect, capability rating level requirements are proposed (e.g., by a ratings board) and then finalized. A capability rating level is determined for computer products (e.g., by a testing organization) based on the finalized requirements and analysis of the products (e.g., by a computer running a capability tool). In another aspect, a software system comprises an inventory module, a performance testing module, and an inventory and performance evaluator module.
摘要翻译： 描述了评估计算机产品的技术和工具。 例如，软件评级是基于主观评估来确定积极的用户体验的计算机系统需求，而运行能力工具的计算机可以评估计算机系统（或硬件组件）运行软件的能力。 通过将一组特征和性能结果与能力等级要求进行比较来确定硬件的能力等级。 另一方面，使用标准化呈现来传达能力等级。 另一方面，提出了能力等级水平要求（例如，由评级委员会），然后确定。 基于产品的最终要求和分析（例如，由运行能力工具的计算机），对计算机产品（例如由测试机构）确定能力等级水平。 另一方面，软件系统包括库存模块，性能测试模块以及库存和性能评估器模块。
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7.发明授权Method and apparatus for resolving pixel data in a graphics rendering system 失效用于解析图形渲染系统中的像素数据的方法和装置
公开(公告)号：US5949428A
公开(公告)日：1999-09-07
申请号：US672694
申请日：1996-06-27
CPC分类号： G06T11/001 , G06T11/40 , G06T13/80 , G06T15/005 , G06T15/04 , G06T15/60
摘要： In a graphics rendering system, an apparatus for resolving depth sorted lists of pixel fragments includes color and alpha accumulators for computing color and alpha values from the pixel fragments in a fragment list. Pixel fragments include color, alpha, coverage data. The coverage data describes how a geometric primitive covers sub-pixel regions of a pixel using a coverage mask. Pixel circuitry according to a clock-optimized approach includes separate color and alpha accumulators for computing color and alpha values for sub-pixel regions of a pixel. The accumulated color values are then summed and scaled to compute final color values for a pixel. To reduce hardware requirements, pixel circuitry in a hardware-optimized approach recognizes that some pixel regions have common accumulated alpha values as each fragment layer is processed. As such, color contributions for fragment layers can be computed using a single color accumulation operation for a pixel region having common alpha values.
摘要翻译： 在图形渲染系统中，用于解析像素片段的深度排序列表的装置包括用于从片段列表中的像素片段计算颜色和α值的颜色和α累加器。 像素片段包括彩色，alpha，coverage数据。 覆盖数据描述几何图元如何使用覆盖掩码覆盖像素的子像素区域。 根据时钟优化方法的像素电路包括用于计算像素的子像素区域的颜色和α值的单独的颜色和α累加器。 然后将累加的颜色值相加和缩放以计算像素的最终颜色值。 为了降低硬件要求，硬件优化方法中的像素电路识别出，随着每个片段层被处理，某些像素区域具有共同的累积alpha值。 因此，可以使用对具有公共α值的像素区域的单个颜色累积操作来计算片段层的颜色贡献。
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公开(公告)号：US5339386A
公开(公告)日：1994-08-16
申请号：US741996
申请日：1991-08-08
CPC分类号： G06T15/503
摘要： In a real time image generation system opaque or planar object pixels are defined by at least a color attribute and a depth value and volumetric pixels are defined by at least a color attribute, a depth value and an opacity gradient value. A volumetric data buffer is provided for storing attributes and values associated with volumetric pixels and the volumetric items are processed first to load that buffer. Successive object pixel definitions are then read and the depth value of each current object pixel definition is compared with the depth value in the buffer and a relative weight for the volumetric effect is calculated as a function of the relative depth values and the corresponding volume gradient value. The color attributes of the object pixel and the volumetric data are then mixed as a function of the relative weighting to obtain a result color attribute which is output as the color for the respective pixel.
摘要翻译： 在实时图像生成系统中，不透明或平面物体像素至少由颜色属性和深度值定义，并且体积像素至少由颜色属性，深度值和不透明度梯度值定义。 提供体积数据缓冲器用于存储与体积像素相关联的属性和值，并且首先处理体积项目以加载该缓冲器。 然后读取连续对象像素定义，并将每个当前对象像素清晰度的深度值与缓冲区中的深度值进行比较，并且计算体积效应的相对权重作为相对深度值和相应的体积梯度值的函数 。 然后将对象像素和体数据的颜色属性作为相对加权的函数进行混合，以获得作为各个像素的颜色输出的结果颜色属性。
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公开(公告)号：US08930167B2
公开(公告)日：2015-01-06
申请号：US11744788
申请日：2007-05-04
申请人： Mark L. Kenworthy
发明人： Mark L. Kenworthy
CPC分类号： G06F11/3003 , G06F9/4411 , G06F11/302 , G06Q30/00 , G06Q30/0283
摘要： Techniques and tools for rating computer products are described. For example, software ratings are based on subjective evaluations to determine computer system requirements for a positive user experience, while a computer running a capability tool rates a computer system's (or hardware component's) ability to run software. A capability rating for hardware is determined by comparing a set of features and performance results with capability rating requirements. In another aspect, a capability rating is communicated using a standardized presentation. In another aspect, capability rating level requirements are proposed (e.g., by a ratings board) and then finalized. A capability rating level is determined for computer products (e.g., by a testing organization) based on the finalized requirements and analysis of the products (e.g., by a computer running a capability tool). In another aspect, a software system comprises an inventory module, a performance testing module, and an inventory and performance evaluator module.
摘要翻译： 描述了评估计算机产品的技术和工具。 例如，软件评级是基于主观评估来确定积极的用户体验的计算机系统需求，而运行能力工具的计算机可以评估计算机系统（或硬件组件）运行软件的能力。 通过将一组特征和性能结果与能力等级要求进行比较来确定硬件的能力等级。 另一方面，使用标准化呈现来传达能力等级。 另一方面，提出了能力等级水平要求（例如，由评级委员会），然后确定。 基于产品的最终要求和分析（例如，由运行能力工具的计算机），对计算机产品（例如由测试机构）确定能力等级水平。 另一方面，软件系统包括库存模块，性能测试模块以及库存和性能评估器模块。
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公开(公告)号：US5886701A
公开(公告)日：1999-03-23
申请号：US672086
申请日：1996-06-27
申请人： Joseph W. Chauvin , Steven A. Gabriel , Howard Good , Kent E. Griffin , Mark L. Kenworthy , William Chambers Powell, III , George Easton Scott, III , Michael A. Toelle , John G. Torborg, Jr. , James E. Veres
发明人： Joseph W. Chauvin , Steven A. Gabriel , Howard Good , Kent E. Griffin , Mark L. Kenworthy , William Chambers Powell, III , George Easton Scott, III , Michael A. Toelle , John G. Torborg, Jr. , James E. Veres
CPC分类号： G06T11/001 , G06T11/40 , G06T13/80 , G06T15/005 , G06T15/04 , G06T15/60
摘要： A graphics rendering chip serially renders a stream of geometric primitives to image regions called chunks. A set-up processor in the chip parses rendering commands and the stream of geometric primitives and computes edge equation parameters. A scan-convert processor receives the edge equation parameters from the set-up processor and scan converts the geometric primitives to produce pixel records and fragment records. An internal, double-buffered pixel buffer stores pixel records for fully covered pixel addresses and also stores references to fragment lists stored in a fragment buffer. A pixel engine performs hidden surface removal and controls storage of pixel and fragment records to the pixel and fragment buffers, respectively. An anti-aliasing engine resolves pixel data for one pixel buffer while the pixel engine fills the other pixel buffer with pixel data for the next chunk.
摘要翻译： 图形渲染芯片将几何图元流连续地呈现给称为块的图像区域。 芯片中的设置处理器解析渲染命令和几何图元流，并计算边缘方程参数。 扫描转换处理器从设置处理器接收边缘方程参数，并扫描转换几何图元以产生像素记录和片段记录。 内部双缓冲像素缓冲区存储完全覆盖的像素地址的像素记录，并存储对片段缓冲区中存储的片段列表的引用。 像素引擎执行隐藏的表面去除并且分别控制像素和片段记录到像素和片段缓冲器的存储。 抗锯齿引擎解决一个像素缓冲器的像素数据，而像素引擎用另一个像素缓冲区填充下一个块的像素数据。
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