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11. 发明授权

US07737974B2 Reallocation of spatial index traversal between processing elements in response to changes in ray tracing graphics workload 失效
标题翻译：响应于光线跟踪图形工作负载的变化，重新分配处理元素之间的空间索引遍历
公开(公告)号：US07737974B2
公开(公告)日：2010-06-15
申请号：US11535573
申请日：2006-09-27
申请人： Eric Oliver Mejdrich , Adam James Muff , Robert Allen Shearer
发明人： Eric Oliver Mejdrich , Adam James Muff , Robert Allen Shearer
IPC分类号： G06T15/50 , G06T15/00
CPC分类号： G06T15/06 , G06T17/005
摘要： Embodiments of the invention provide methods and apparatus for reallocating workload related to traversal of a ray through a spatial index. In a first operating state a workload manager may be experiencing a first or a normal workload. In the first operating state the workload manager may be responsible for traversing the entire spatial index and a vector throughput engine may be responsible for performing ray-primitive intersection tests. In an increased workload state the workload manager may experience an increased workload. In response to the increased workload the image processing system may partition the spatial index such that the workload manager may be responsible for traversing a first portion of the spatial index and the vector throughput engine may be responsible for traversing a second portion of the spatial index and for performing ray-primitive intersection tests.
摘要翻译：本发明的实施例提供了用于重新分配通过空间索引穿过射线的工作量的方法和装置。在第一个操作状态下，工作负载管理器可能正在经历第一个或正常工作负载。在第一个操作状态下，工作负载管理器可能负责遍历整个空间索引，而矢量吞吐量引擎可能负责执行光线原始相交测试。在增加的工作负载状态下，工作负载管理器可能会遇到增加的工作负载。响应于增加的工作负载，图像处理系统可以分割空间索引，使得工作负载管理器可能负责遍历空间索引的第一部分，并且向量吞吐量引擎可以负责遍历空间索引的第二部分，用于执行光线原始相交测试。

12. 发明申请

US20100115250A1 CONTEXT SWITCHING AND SYNCHRONIZATION 有权
标题翻译：语境切换与同步
公开(公告)号：US20100115250A1
公开(公告)日：2010-05-06
申请号：US12685443
申请日：2010-01-11
申请人： JON K. KRIEGEL , Eric Oliver Mejdrich
发明人： JON K. KRIEGEL , Eric Oliver Mejdrich
IPC分类号： G06F9/38 , G06F12/08
CPC分类号： G06F9/4812 , G06F9/461 , G06F9/463 , G06F9/5016 , G06F9/5027 , G06F12/0837 , G06F12/0842 , G06F12/1054 , G06F12/126 , G06F2209/481 , G06F2209/5018
摘要： A method, computer-readable medium, and apparatus for context switching between a first thread and a second thread. The method includes detecting an exception, wherein the exception is generated in response to receiving a packet of information directed to one of the first thread and the second thread, and in response to detecting the exception, invoking an exception handler. The exception handler is configured to execute one or more instructions removing access to at least a portion of a processor cache. The portion of the processor cache contains cached information for the first thread using a first address translation. Removing access to the portion of the processor cache prevents the second thread using a second address translation from accessing the cached information in the processor cache. The exception handler is also configured to branch to at least one of the first thread and the second thread.
摘要翻译：一种用于第一线程和第二线程之间的上下文切换的方法，计算机可读介质和装置。该方法包括检测异常，其中响应于接收到针对第一线程和第二线程之一的信息的分组而产生异常，并且响应于检测到该异常，调用异常处理程序。异常处理程序被配置为执行一个或多个指令，以移除对处理器高速缓存的至少一部分的访问。处理器缓存的部分包含使用第一个地址转换的第一个线程的缓存信息。去除对处理器高速缓存部分的访问阻止使用第二地址转换的第二线程访问处理器高速缓存中的缓存信息。异常处理程序还被配置为分支到第一线程和第二线程中的至少一个。

13. 发明授权

US07681020B2 Context switching and synchronization 失效
标题翻译：上下文切换和同步
公开(公告)号：US07681020B2
公开(公告)日：2010-03-16
申请号：US11736936
申请日：2007-04-18
申请人： Jon K. Kriegel , Eric Oliver Mejdrich
发明人： Jon K. Kriegel , Eric Oliver Mejdrich
IPC分类号： G06F9/00
CPC分类号： G06F9/4812 , G06F9/461 , G06F9/463 , G06F9/5016 , G06F9/5027 , G06F12/0837 , G06F12/0842 , G06F12/1054 , G06F12/126 , G06F2209/481 , G06F2209/5018
摘要： A method, computer-readable medium, and apparatus for context switching between a first thread and a second thread. The method includes detecting an exception, wherein the exception is generated in response to receiving a packet of information directed to one of the first thread and the second thread, and in response to detecting the exception, invoking an exception handler. The exception handler is configured to execute one or more instructions removing access to at least a portion of a processor cache. The portion of the processor cache contains cached information for the first thread using a first address translation. Removing access to the portion of the processor cache prevents the second thread using a second address translation from accessing the cached information in the processor cache. The exception handler is also configured to branch to at least one of the first thread and the second thread.
摘要翻译：一种用于第一线程和第二线程之间的上下文切换的方法，计算机可读介质和装置。该方法包括检测异常，其中响应于接收到针对第一线程和第二线程之一的信息的分组而产生异常，并且响应于检测到该异常，调用异常处理程序。异常处理程序被配置为执行一个或多个指令，以移除对处理器高速缓存的至少一部分的访问。处理器缓存的部分包含使用第一个地址转换的第一个线程的缓存信息。去除对处理器高速缓存部分的访问阻止使用第二地址转换的第二线程访问处理器高速缓存中的缓存信息。异常处理程序还被配置为分支到第一线程和第二线程中的至少一个。

14. 发明申请

US20090256836A1 HYBRID RENDERING OF IMAGE DATA UTILIZING STREAMING GEOMETRY FRONTEND INTERCONNECTED TO PHYSICAL RENDERING BACKEND THROUGH DYNAMIC ACCELERATED DATA STRUCTURE GENERATOR 有权
标题翻译：通过动态加速数据结构发生器将图像数据混合使用通过物理渲染相互连接进行物理渲染
公开(公告)号：US20090256836A1
公开(公告)日：2009-10-15
申请号：US12101349
申请日：2008-04-11
申请人： Dave Fowler , Eric Oliver Mejdrich , Paul Emery Schardt , Robert Allen Shearer
发明人： Dave Fowler , Eric Oliver Mejdrich , Paul Emery Schardt , Robert Allen Shearer
IPC分类号： G06T15/00
CPC分类号： G06T15/506 , G06T15/06 , G06T2200/28
摘要： A circuit arrangement and method provide a hybrid rendering architecture capable of interfacing a streaming geometry frontend with a physical rendering backend using a dynamic accelerated data structure (ADS) generator. The dynamic ADS generator effectively parallelizes the generation of the ADS, such that an ADS may be built using a plurality of parallel threads of execution. By doing so, both the frontend and backend rendering processes are amendable to parallelization, and enabling if so desired real time rendering using physical rendering techniques such as ray tracing and photon mapping. Furthermore, conventional streaming geometry frontends such as OpenGL and DirectX compatible frontends can readily be adapted for use with physical rendering backends, thereby enabling developers to continue to develop with known API's, yet still obtain the benefits of physical rendering techniques.
摘要翻译：电路布置和方法提供了能够使用动态加速数据结构（ADS）发生器将流几何前沿与物理渲染后端连接的混合渲染架构。动态ADS发生器有效地并行化ADS的生成，使得可以使用多个并行执行线程构建ADS。通过这样做，前端和后端渲染过程可以修改为并行化，并且如果需要使用诸如光线跟踪和光子映射之类的物理渲染技术的实时渲染，则使能。此外，诸如OpenGL和DirectX兼容的前端之类的常规流几何前端可以容易地适用于物理渲染后端，从而使开发人员可以继续使用已知的API进行开发，但是仍然可以获得物理渲染技术的优点。

15. 发明申请

US20090228681A1 Processing Unit Incorporating Instruction-Based Persistent Vector Multiplexer Control 失效
标题翻译：结合基于指令的持续矢量多路复用器控制的处理单元
公开(公告)号：US20090228681A1
公开(公告)日：2009-09-10
申请号：US12045221
申请日：2008-03-10
申请人： Eric Oliver Mejdrich , Adam James Muff , Robert Allen Shearer , Matthew Ray Tubbs
发明人： Eric Oliver Mejdrich , Adam James Muff , Robert Allen Shearer , Matthew Ray Tubbs
IPC分类号： G06F9/30 , G06F15/76
CPC分类号： G06F9/30032 , G06F9/30036 , G06F9/30109 , G06F9/30123
摘要： Persistent vector multiplexer control is used in a vector-based execution unit to control the shuffling of words in operand vectors processed by the execution unit. In addition, a persistent swizzle instruction is defined in an instruction set for the vector-based execution unit and is used to cause state information to be persisted such that the operand vectors processed by subsequent vector instructions executed by the vector-based execution unit will be selectively shuffled using the persisted state information. As a result, when multiple vector instructions require a common custom word ordering for one or more operand vectors, a single persistent swizzle instruction may be used to select the desired custom word ordering for all of the vector instructions.
摘要翻译：持续矢量复用器控制在基于矢量的执行单元中用于控制由执行单元处理的操作数向量中的字的混洗。此外，在用于基于向量的执行单元的指令集中定义持续转换指令，并且用于使状态信息被持久化，使得由基于向量的执行单元执行的后续向量指令处理的操作数向量将被使用持久状态信息选择性地进行混洗。因此，当多个向量指令需要一个或多个操作数向量的公共自定义单词排序时，可以使用单个持续旋转指令来选择所有向量指令的期望的定制单词排序。

16. 发明申请

US20080114824A1 Single Precision Vector Permute Immediate with "Word" Vector Write Mask 有权
标题翻译：单精度向量允许立即与“Word”向量写入掩码
公开(公告)号：US20080114824A1
公开(公告)日：2008-05-15
申请号：US11554794
申请日：2006-10-31
申请人： Eric Oliver Mejdrich , Adam James Muff
发明人： Eric Oliver Mejdrich , Adam James Muff
IPC分类号： G06F7/38
CPC分类号： G06T1/60 , G06F9/30032 , G06F9/30036
摘要： The present invention is generally related to the field of image processing, and more specifically to an instruction set for processing images. Vector processing may involve performing a plurality of permute operations to arrange vector operands in desired locations of a register prior to performing vector operation, for example, a cross product. The permute instructions may be dependent on one another and may require the use of temporary registers. Embodiments of the invention provide a permute instruction wherein a mask field may be used to specify a particular location of a target register in which to transfer data, thereby reducing the number of instructions for arranging data, reducing dependencies between instructions, and the usage of temporary registers.
摘要翻译：本发明通常涉及图像处理领域，更具体地涉及用于处理图像的指令集。矢量处理可以包括执行多个置换操作，以在执行矢量操作之前（例如，交叉乘积）将向量操作数布置在寄存器的期望位置中。置换指令可能彼此依赖，可能需要使用临时寄存器。本发明的实施例提供了一种置换指令，其中掩模字段可以用于指定目标寄存器的特定位置，其中传送数据，从而减少用于排列数据的指令的数量，减少指令之间的依赖性以及临时的使用注册

17. 发明授权

US08564600B2 Streaming physics collision detection in multithreaded rendering software pipeline 有权
标题翻译：多线程渲染软件流水线物理碰撞检测
公开(公告)号：US08564600B2
公开(公告)日：2013-10-22
申请号：US12778390
申请日：2010-05-12
申请人： Eric Oliver Mejdrich , Paul Emery Schardt , Robert Allen Shearer
发明人： Eric Oliver Mejdrich , Paul Emery Schardt , Robert Allen Shearer
IPC分类号： G06T1/20 , G06F15/16 , G06F15/00 , G06K9/60
CPC分类号： G06F9/3851 , G06F9/3802 , G06F9/3838 , G06F9/3842 , G06F9/3877 , G06F15/7825 , G06T17/00 , G06T2210/21
摘要： A circuit arrangement, program product and method stream level of detail components between hardware threads in a multithreaded circuit arrangement to perform physics collision detection. Typically, a master hardware thread, e.g., a component loader hardware thread, is used to retrieve level of detail data for an object from a memory and stream the data to one or more slave hardware threads, e.g., collision detection hardware threads, to perform the actual collision detection. Because the slave hardware threads receive the level of detail data from the master thread, typically the slave hardware threads are not required to load the data from the memory, thereby reducing memory bandwidth requirements and accelerating performance.
摘要翻译：在多线程电路布置中的硬件线程之间的电路布置，程序产品和方法流级别的细节组件来执行物理冲突检测。通常，主硬件线程（例如，组件加载器硬件线程）用于从存储器检索对象的细节数据级别，并将数据流传送到一个或多个从属硬件线程，例如冲突检测硬件线程，以执行实际碰撞检测。由于从属硬件线程接收到主线程的详细数据级别，通常从硬件线程不需要从存储器加载数据，从而减少内存带宽需求并加速性能。

18. 发明授权

US08284195B2 Cooperative utilization of spatial indices between application and rendering hardware 失效
标题翻译：应用与渲染硬件之间空间索引的协同利用
公开(公告)号：US08284195B2
公开(公告)日：2012-10-09
申请号：US11854617
申请日：2007-09-13
申请人： Jeffrey Douglas Brown , Russell Dean Hoover , Eric Oliver Mejdrich , Robert Allen Shearer
发明人： Jeffrey Douglas Brown , Russell Dean Hoover , Eric Oliver Mejdrich , Robert Allen Shearer
IPC分类号： G06T15/40
CPC分类号： G06T15/06
摘要： According to embodiments of the invention, a data structure may be created which may be used by both a ray tracing unit and by a rendering engine. The data structure may have an initial or upper portion representing bounding volumes which partition a three-dimensional scene and a second or lower portion representing objects within the three-dimensional scene. The integrated acceleration data structure may be used by a rendering engine to render a two-dimensional image from a three-dimensional scene, and by a ray tracing unit to perform intersection tests.
摘要翻译：根据本发明的实施例，可以创建可由光线跟踪单元和渲染引擎使用的数据结构。数据结构可以具有表示划分三维场景的界限体积的初始或上部，以及表示三维场景内的对象的第二或更低部分。集成的加速度数据结构可以由渲染引擎用来从三维场景渲染二维图像，并由光线跟踪单元进行交叉测试。

19. 发明授权

US08248415B2 User-defined non-visible geometry featuring ray filtering 有权
标题翻译：用户定义的非可见几何特征是射线过滤
公开(公告)号：US08248415B2
公开(公告)日：2012-08-21
申请号：US12360989
申请日：2009-01-28
申请人： Eric Oliver Mejdrich , Paul Emery Schardt , Robert Allen Shearer , Matthew Ray Tubbs
发明人： Eric Oliver Mejdrich , Paul Emery Schardt , Robert Allen Shearer , Matthew Ray Tubbs
IPC分类号： G06T15/50 , G06T15/00 , G06T15/40 , G06T15/10 , G06T15/20 , G06T15/06
CPC分类号： G06T15/06
摘要： A method, system and computer program product for managing secondary rays during ray-tracing are presented. A non-visible unidirectional ray tracing object logically surrounds a user-selected virtual object in a computer generated illustration. This unidirectional ray tracing object prevents secondary tracing rays from emanating from the user-selected virtual object during ray tracing.
摘要翻译：提出了一种在射线跟踪期间管理二次射线的方法，系统和计算机程序产品。在计算机生成的图示中，不可见的单向光线跟踪对象在逻辑上围绕用户选择的虚拟对象。这种单向光线跟踪对象可防止在光线跟踪期间从用户选择的虚拟对象发出辅助跟踪光线。

20. 发明授权

US08022950B2 Stochastic culling of rays with increased depth of recursion 有权
标题翻译：随机递推深度的光线剔除
公开(公告)号：US08022950B2
公开(公告)日：2011-09-20
申请号：US11627464
申请日：2007-01-26
申请人： Jeffrey Douglas Brown , Russell Dean Hoover , Eric Oliver Mejdrich
发明人： Jeffrey Douglas Brown , Russell Dean Hoover , Eric Oliver Mejdrich
IPC分类号： G06T15/50
CPC分类号： G06T15/40 , G06T15/06
摘要： According to embodiments of the invention, rays may be stochastically culled before they are issued into the three-dimensional scene. Stochastically culling rays may reduce the number of rays which need to be traced by the image processing system. Furthermore, by stochastically culling rays before they are issued into the three-dimensional scene, minor imperfections may be added to the final rendered image, thereby improving the realism of the rendered image. Therefore, stochastic culling of rays may improve the performance of the image processing system by reducing workload imposed on the image processing system and improving the realism of the images rendered by the image processing system. According to another embodiment of the invention, the realism of images rendered by the image processing system may also be improved by stochastically adding secondary rays after ray-primitive intersections have occurred.
摘要翻译：根据本发明的实施例，射线可以在它们被发放到三维场景之前被随机地淘汰。随机剔除光线可能减少图像处理系统需要追踪的光线数量。此外，通过在将它们发布到三维场景之前随机剔除光线，可以将最小的缺陷添加到最终渲染图像，从而改善渲染图像的真实性。因此，通过减少图像处理系统的工作量，提高图像处理系统所呈现的图像的真实性，可以提高图像处理系统的性能。根据本发明的另一个实施例，图像处理系统呈现的图像的真实性也可以通过在发生光线原始交点之后随机添加二次光线来改善。

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