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1. 发明申请

WO2009117691A2 ARCHITECTURES FOR PARALLELIZED INTERSECTION TESTING AND SHADING FOR RAY-TRACING RENDERING 审中-公开
标题翻译：用于光线追踪渲染的平行交叉测试和阴影构造
公开(公告)号：WO2009117691A2
公开(公告)日：2009-09-24
申请号：PCT/US2009/037860
申请日：2009-03-20
申请人： CAUSTIC GRAPHICS, INC , PETERSON, Luke, Tilman , MCCOMBE, James, Alexander , SALSBURY, Ryan, R. , PURCELL, Stephen
发明人： PETERSON, Luke, Tilman , MCCOMBE, James, Alexander , SALSBURY, Ryan, R. , PURCELL, Stephen
IPC分类号： G06T15/00
CPC分类号： G06T15/06
摘要： In an example, ray tracing scenes includes using a plurality of intersection testing resources coupled with a plurality of shading resources, communicative in the aggregate through links/queues. A queue from testing to shading comprises respective ray/primitive intersection indications, comprising ray identifiers. A shading to testing queue comprises identifiers of new rays for test, wherein data defining the rays is separately stored in memories distributed among the intersection testing resources. Ray definition data can be retained in distributed memories until rays complete intersection testing, being selectable for testing multiple times based on ray identifier. A structure of acceleration shapes can be used. Packets of ray identifiers and shape data can circulate among intersection testing resources, each resource can test rays identified in the packet, and for which definition data is present in its memory. Acceleration shape test results allow collection of rays based on intersected shape, and closest detection ray/primitive intersections are indicated by queuing ray identifiers for shading.
摘要翻译：在一个示例中，光线追踪场景包括使用与多个阴影资源耦合的多个交叉点测试资源，其通过链路/队列在聚合中进行通信。从测试到阴影的队列包括相应的光线/图元交叉点指示，包括光线标识符。对测试队列的阴影包括用于测试的新射线的标识符，其中定义射线的数据被分开地存储在分布在相交测试资源之间的存储器中。光线定义数据可以保留在分布式存储器中，直到光线完成相交测试，可选择基于光线标识符进行多次测试。可以使用加速度形状的结构。光线标识符和形状数据包可以在相交测试资源之间流通，每个资源可以测试包中标识的光线，以及其存储器中存在哪些定义数据。加速度形状测试结果允许根据相交形状收集光线，最近的检测光线/图元交叉点通过用于着色的排队光线标识符指示。

2. 发明申请

WO2010030693A1 RAY TRACING SYSTEM ARCHITECTURES AND METHODS 审中-公开
标题翻译： RAY跟踪系统架构和方法
公开(公告)号：WO2010030693A1
公开(公告)日：2010-03-18
申请号：PCT/US2009/056395
申请日：2009-09-09
申请人： CAUSTIC GRAPHICS, INC. , PETERSON, Luke, Tilman , MCCOMBE, James, Alexander , SALSBURY, Ryan, R. , CLOHSET, Steven, John
发明人： PETERSON, Luke, Tilman , MCCOMBE, James, Alexander , SALSBURY, Ryan, R. , CLOHSET, Steven, John
IPC分类号： G06T15/00
CPC分类号： G06T15/06 , G06T1/60 , G06T15/08 , G06T15/80 , G06T2215/12 , G09G5/006 , G09G5/393 , G09G2360/121 , G09G2370/10
摘要： Aspects comprise systems implementing ray tracing functionality according to example architectures. In one example, rays are collected into collections against elements of an acceleration structure, which in some cases are associated with objects composing a scene being ray traced. Indications of detected ray intersections also can be collected in an output buffer, and in some examples, the output buffer can comprise a plurality of portions, each associated with a scene object, or a common portion of code to be executed during shading. Buffer contents can be accessed in a block read. An intersection shading resource can load data to be used in shading the intersections for the identified rays, and locally storing that data for use in shading those intersections.
摘要翻译：方面包括根据示例架构实现射线跟踪功能的系统。在一个示例中，针对加速结构的元素将光线收集到集合中，这在一些情况下与构成被跟踪的场景的对象相关联。检测到的射线交叉点的指示也可以被收集在输出缓冲器中，并且在一些示例中，输出缓冲器可以包括多个部分，每个部分与场景对象相关联，或者在阴影期间执行的代码的公共部分。可以在块读取中访问缓冲区内容。交叉阴影资源可以加载要用于遮蔽所识别的光线的交点处的数据，并且本地存储用于遮蔽那些交叉点的数据。

3. 发明申请

WO2010030674A1 RAY TRACING USING RAY-SPECIFIC CLIPPING 审中-公开
标题翻译：使用RAY-SPECIFIC CLIPPING进行RAY跟踪
公开(公告)号：WO2010030674A1
公开(公告)日：2010-03-18
申请号：PCT/US2009/056369
申请日：2009-09-09
申请人： CAUSTIC GRAPHICS, INC. , SALSBURY, Ryan, R. , MCCOMBE, James, Alexander , PURCELL, Stephen , PETERSON, Luke, Tilman
发明人： SALSBURY, Ryan, R. , MCCOMBE, James, Alexander , PURCELL, Stephen , PETERSON, Luke, Tilman
IPC分类号： G06T15/00
CPC分类号： G06T15/06
摘要： Systems, methods, and computer readable media embodying such methods provide for allowing specification of per-ray clipping information that defines a sub-portion of a 3-D scene in which the ray should be traced. The clipping information can be specified as a clip distance from a ray origin, as an end value of a parametric ray definition, or alternatively the clipping information can be built into a definition of the ray to be traced. The clipping information can be used to check whether portions of an acceleration structure need to be traversed, as well as whether primitives should be tested for intersection. Other aspects include specifying a default object that can be returned as intersected when no primitive was intersected within the sub-portion defined for testing. Further aspects include allowing provision of flags interpretable by an intersection testing resource that control what the intersection testing resource does, and/or what information it reports after conclusion of testing of a ray.
摘要翻译：体现这种方法的系统，方法和计算机可读介质提供允许规定限定其中应该追踪射线的3-D场景的子部分的每个射线限幅信息。剪辑信息可以被指定为与光线原点的剪辑距离，作为参数光线定义的结束值，或者可以将剪辑信息内置到要跟踪的光线的定义中。剪切信息可以用于检查是否需要遍历加速结构的部分，以及是否要对原语进行交叉测试。其他方面包括指定一个默认对象，该对象可以在为测试定义的子部分内没有原语相交时返回。其他方面包括允许提供可由交叉点测试资源解释的标志，该交叉点测试资源可以控制交叉点测试资源的作用，和/或在射线测试结束之后报告哪些信息。

4. 发明申请

WO2009067351A1 SYSTEMS AND METHODS FOR RENDERING WITH RAY TRACING 审中-公开
标题翻译：用RAY跟踪渲染的系统和方法
公开(公告)号：WO2009067351A1
公开(公告)日：2009-05-28
申请号：PCT/US2008/083044
申请日：2008-11-10
申请人： CAUSTIC GRAPHICS, INC. , MCCOMBE, James, Alexander , SALSBURY, Ryan, R. , PETERSON, Luke, Tilman
发明人： MCCOMBE, James, Alexander , SALSBURY, Ryan, R. , PETERSON, Luke, Tilman
IPC分类号： G09G5/02
CPC分类号： G06T15/06 , G06T2210/52
摘要： For ray tracing scenes composed of primitives, systems and methods accelerate ray/primitive intersection identification by testing rays against elements of geometry acceleration data (GAD) in a parallelized intersection testing resource. Groups of rays can be described as shared attribute information and individual ray data for efficient ray data transfer between a host processor and the testing resource. The host processor also hosts shading and/or management processes controlling the testing resource and adapting the ray tracing, as necessary or desirable, to meet criteria, while reducing degradation of rendering quality. The GAD elements can be arranged in a graph, and rays can be collected into collections based on whether a ray intersects a given element. When a collection is deemed ready for further testing, it is tested for intersection with GAD elements connected, in the graph, to the given element. The graph can be hierarchical such that rays of a given collection are tested against children of the GAD element associated with the given collection.
摘要翻译：对于由原始图像组成的光线跟踪场景，系统和方法通过在并行交叉测试资源中测试射线与几何加速度数据（GAD）的元素来加速射线/原始交点识别。一组光线可以被描述为共享属性信息和单独的射线数据，用于主处理器和测试资源之间的有效射线数据传输。主机处理器还承载控制测试资源的阴影和/或管理过程，并根据需要或需要调整光线跟踪以满足标准，同时减少渲染质量的降低。 GAD元素可以排列在图形中，并且可以基于光线是否与给定元素相交，将光线收集到集合中。当集合被认为准备进行进一步测试时，它将与图中连接的GAD元素的交点进行测试。该图可以是分级的，使得给定集合的射线针对与给定集合相关联的GAD元素的子对象进行测试。

5. 发明申请

WO2009051990A1 COMPUTER READABLE MEDIUM FOR LIGHT ENERGY ACCOUNTING IN RAY TRACING 审中-公开
标题翻译：用于光线跟踪的轻型能源计算机可读介质
公开(公告)号：WO2009051990A1
公开(公告)日：2009-04-23
申请号：PCT/US2008/079107
申请日：2008-10-07
申请人： CAUSTIC GRAPHICS, INC. , PETERSON, Luke, Tilman , MCCOMBE, James, Alexander , SALSBURY, Ryan, R.
发明人： PETERSON, Luke, Tilman , MCCOMBE, James, Alexander , SALSBURY, Ryan, R.
IPC分类号： G06T15/50
CPC分类号： G06T15/06
摘要： For ray tracing systems, described methods, media, apparatuses provide for accounting of light energy that will be collected at pixels of a 2-D representation without recursive closure of a tree of ray/primitive intersections, and also provide for adaptivity in ray tracing based on importance indicators of each ray, such as a weight, which may be carried in data structures representative of the rays. Examples of such adaptivity may include determining a number of children to issue for shading an identified intersecting primitive, culling rays, and adding rays to achieve more accurate sampling, if desired. All such adaptivity may be triggered with goal-based indicators, such as a threshold value representative of rendering progress to a time-based goal, such as a frame rate.
摘要翻译：对于光线跟踪系统，所描述的方法，介质，设备提供将会在2-D表示的像素处收集的光能的记录，而不是光线/原始相交的树的递归闭合，并且还提供基于光线跟踪的适应性关于每个射线的重要性指标，例如重量，其可以在代表射线的数据结构中携带。这种适应性的示例可以包括确定若干儿童发出遮蔽所识别的相交原始图像，剔除光线和添加光线以实现更准确的采样，如果需要的话。可以利用基于目标的指示符来触发所有这样的自适应，例如代表将进度渲染到基于时间的目标（例如帧速率）的阈值。

6. 发明申请

WO2009048886A1 METHOD AND APPARATUS FOR TRANSMISSION AND/OR STORAGE OF RAYS FOR PARALLELIZED RAY INTERSECTION TESTING 审中-公开
标题翻译：用于并行RAY接口测试的传输和/或存储的方法和装置
公开(公告)号：WO2009048886A1
公开(公告)日：2009-04-16
申请号：PCT/US2008/079110
申请日：2008-10-07
申请人： CAUSTIC GRAPHICS, INC. , SALSBURY, Ryan, R. , MCCOMBE, James, Alexander , PETERSON, Luke, Tilman
发明人： SALSBURY, Ryan, R. , MCCOMBE, James, Alexander , PETERSON, Luke, Tilman
IPC分类号： G06T15/50
CPC分类号： G06T15/06
摘要： For ray tracing, methods, apparatus, and computer readable media provide efficient transmission and/or storage of rays between ray emitters, and an intersection testing resource. Ray emitters, during emission of a plurality of rays, identify a shared attribute of each ray of the plurality, and represent that attribute as shared ray data. The shared ray data, and other ray data sufficient to determine both an origin and a direction for each ray of the plurality, are transmitted. Functionality in the intersection testing resource receives the shared ray data and the other ray data, and interprets the shared ray data and the other ray data to determine an origin and direction for each ray of the plurality, and provides those rays for intersection testing. Rays can be stored in the shared attribute format in the intersection testing resource and data elements representing the rays can be constructed later. Programmable receiving functionality of the intersection testing resource can accommodate many ray types and other situations.
摘要翻译：对于光线跟踪，方法，装置和计算机可读介质提供射线发射器之间的射线和交叉点测试资源的有效传输和/或存储。在多个光线的发射期间，射线发射器识别多个射线的共享属性，并将该属性表示为共享射线数据。发送共享射线数据和足以确定多个射线中的每个射线的原点和方向的其他射线数据。交叉点测试资源中的功能接收共享射线数据和其他射线数据，并解释共享射线数据和其他射线数据，以确定多个射线的原点和方向，并提供这些射线进行交叉测试。可以在交叉点测试资源中以共享属性格式存储光线，稍后可以构建表示光线的数据元素。交叉点测试资源的可编程接收功能可以适应许多射线类型和其他情况。

7. 发明公开

EP2335224A1 RAY TRACING USING RAY-SPECIFIC CLIPPING 有权转让
标题翻译： STRAHLVERFOLGUNG MIT STRAHLSPEZIFISCHEM CLIPPING
公开(公告)号：EP2335224A1
公开(公告)日：2011-06-22
申请号：EP09792372.6
申请日：2009-09-09
申请人： Caustic Graphics, Inc.
发明人： SALSBURY, Ryan, R. , MCCOMBE, James, Alexander , PURCELL, Stephen , PETERSON, Luke, Tilman
IPC分类号： G06T15/00
CPC分类号： G06T15/06
摘要： Systems, methods, and computer readable media embodying such methods provide for allowing specification of per-ray clipping information that defines a sub-portion of a 3-D scene in which the ray should be traced. The clipping information can be specified as a clip distance from a ray origin, as an end value of a parametric ray definition, or alternatively the clipping information can be built into a definition of the ray to be traced. The clipping information can be used to check whether portions of an acceleration structure need to be traversed, as well as whether primitives should be tested for intersection. Other aspects include specifying a default object that can be returned as intersected when no primitive was intersected within the sub-portion defined for testing. Further aspects include allowing provision of flags interpretable by an intersection testing resource that control what the intersection testing resource does, and/or what information it reports after conclusion of testing of a ray.
摘要翻译：体现这种方法的系统，方法和计算机可读介质提供允许规定限定其中应该追踪射线的3-D场景的子部分的每个射线限幅信息。剪辑信息可以被指定为与光线原点的剪辑距离，作为参数光线定义的结束值，或者可以将剪辑信息内置到要跟踪的光线的定义中。剪辑信息可以用于检查是否需要遍历加速结构的部分，以及是否要对原语进行交叉测试。其他方面包括指定一个默认对象，该对象可以在为测试定义的子部分中没有原语相交时返回。其他方面包括允许提供由交叉点测试资源解释的标志，该交叉点测试资源可以控制交叉点测试资源的作用，和/或在射线测试结束之后报告哪些信息。

8. 发明公开

EP2335223A1 RAY TRACING SYSTEM ARCHITECTURES AND METHODS 有权转让
标题翻译：体系结构和方法用于波束跟踪系统
公开(公告)号：EP2335223A1
公开(公告)日：2011-06-22
申请号：EP09792379.1
申请日：2009-09-09
申请人： Caustic Graphics, Inc.
发明人： PETERSON, Luke, Tilman , MCCOMBE, James, Alexander , SALSBURY, Ryan, R. , CLOHSET, Steven, John
IPC分类号： G06T15/00
CPC分类号： G06T15/06 , G06T1/60 , G06T15/08 , G06T15/80 , G06T2215/12 , G09G5/006 , G09G5/393 , G09G2360/121 , G09G2370/10
摘要： Aspects comprise systems implementing ray tracing functionality according to example architectures. In one example, rays are collected into collections against elements of an acceleration structure, which in some cases are associated with objects composing a scene being ray traced. Indications of detected ray intersections also can be collected in an output buffer, and in some examples, the output buffer can comprise a plurality of portions, each associated with a scene object, or a common portion of code to be executed during shading. Buffer contents can be accessed in a block read. An intersection shading resource can load data to be used in shading the intersections for the identified rays, and locally storing that data for use in shading those intersections.

9. 发明公开

EP2223295A1 SYSTEMS AND METHODS FOR RENDERING WITH RAY TRACING 有权转让
标题翻译：系统和方法与射线追踪PLAY
公开(公告)号：EP2223295A1
公开(公告)日：2010-09-01
申请号：EP08851950.9
申请日：2008-11-10
申请人： Caustic Graphics, Inc.
发明人： MCCOMBE, James, Alexander , SALSBURY, Ryan, R. , PETERSON, Luke, Tilman
IPC分类号： G09G5/02
CPC分类号： G06T15/06 , G06T2210/52
摘要： For ray tracing scenes composed of primitives, systems and methods accelerate ray/primitive intersection identification by testing rays against elements of geometry acceleration data (GAD) in a parallelized intersection testing resource. Groups of rays can be described as shared attribute information and individual ray data for efficient ray data transfer between a host processor and the testing resource. The host processor also hosts shading and/or management processes controlling the testing resource and adapting the ray tracing, as necessary or desirable, to meet criteria, while reducing degradation of rendering quality. The GAD elements can be arranged in a graph, and rays can be collected into collections based on whether a ray intersects a given element. When a collection is deemed ready for further testing, it is tested for intersection with GAD elements connected, in the graph, to the given element. The graph can be hierarchical such that rays of a given collection are tested against children of the GAD element associated with the given collection.

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