CA2479240A1 - Data aware clustered architecture for an image generator - Google Patents
Data aware clustered architecture for an image generator Download PDFInfo
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- CA2479240A1 CA2479240A1 CA002479240A CA2479240A CA2479240A1 CA 2479240 A1 CA2479240 A1 CA 2479240A1 CA 002479240 A CA002479240 A CA 002479240A CA 2479240 A CA2479240 A CA 2479240A CA 2479240 A1 CA2479240 A1 CA 2479240A1
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T15/00—3D [Three Dimensional] image rendering
- G06T15/005—General purpose rendering architectures
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S707/00—Data processing: database and file management or data structures
- Y10S707/99941—Database schema or data structure
- Y10S707/99944—Object-oriented database structure
- Y10S707/99945—Object-oriented database structure processing
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S707/00—Data processing: database and file management or data structures
- Y10S707/99941—Database schema or data structure
- Y10S707/99948—Application of database or data structure, e.g. distributed, multimedia, or image
Abstract
A data aware clustered system architecture is described for an image generation system (Fig. 2). The architecture leverages commodity personal computers (209) to provide the processing capability of the image generator such as may be used in a flight simulator. The architecture supports a data pipeline (202, 208, 210 ~) for processing stages of a progressive data structure for the transformation of data from abstract to a more concrete form for the generation of an image. The architecture provides a multi-staged data flow that extends transparently from a single node system to multiple CPUs in a single node system, to multiple nodes in a clustered system or to multiple CPUs on each node of a clustered system.
Claims (38)
1. A system for processing different versions of a progressive data structure in a data pipeline in an image generation system, the progressive data structure comprising attributes for one or more components of a scene and having a format comprising a header section with a table having one or more pointers to one or more data substructures, the system comprising:
a computer system having a programmable processor, a graphics pipeline subsystem communicatively coupled via a communication infrastructure to the processor, and a memory accessible via the communication infrastructure to the processor and the graphics pipeline;
a progressive data builder module being stored in said memory comprising instructions for execution by the computer system for determining whether each substructure in a first progressive structure is active, and for, responsive to the substructure being active, performing rendering computations producing resulting rendering data.
a computer system having a programmable processor, a graphics pipeline subsystem communicatively coupled via a communication infrastructure to the processor, and a memory accessible via the communication infrastructure to the processor and the graphics pipeline;
a progressive data builder module being stored in said memory comprising instructions for execution by the computer system for determining whether each substructure in a first progressive structure is active, and for, responsive to the substructure being active, performing rendering computations producing resulting rendering data.
2. The system of claim 1 wherein the progressive data builder further comprises instructions for execution by the computer system for, responsive to the substructure being active, storing the resulting rendering data for the substructure in a second progressive data structure, and for, responsive to the substructure not being active, setting a pointer to the substructure to a special value in the second progressive data structure.
3. A method for processing different versions of a progressive data structure in a data pipeline in an image generation system, the progressive data structure comprising attributes for one or more components of a scene and having a format comprising a header section with a table having one or more pointers to one or more data substructures, the method comprising:
determining whether each substructure in a first progressive structure is active; and responsive to the substructure being active, performing rendering computations producing resulting rendering data.
determining whether each substructure in a first progressive structure is active; and responsive to the substructure being active, performing rendering computations producing resulting rendering data.
4. The method of claim 3 further comprising:
responsive to the substructure being active, storing the resulting rendering data for the substructure in a second progressive data structure;
and responsive to the substructure not being active, setting a pointer to the substructure to a special value in the second progressive data structure.
responsive to the substructure being active, storing the resulting rendering data for the substructure in a second progressive data structure;
and responsive to the substructure not being active, setting a pointer to the substructure to a special value in the second progressive data structure.
5. A system for processing different versions of a progressive data structure in a data pipeline in an image generation system, the progressive data structure comprising attributes for one or more components of a scene and having a format comprising a header section with a table having one or more pointers to one or more data substructures, the system comprising:
means for determining whether each substructure in a first progressive structure is active; and means for, responsive to the substructure being active, performing rendering computations producing resulting rendering data.
means for determining whether each substructure in a first progressive structure is active; and means for, responsive to the substructure being active, performing rendering computations producing resulting rendering data.
6. The system of claim 5 further comprising:
means for, responsive to the substructure being active, storing the resulting rendering data for the substructure in a second progressive data structure; and means for, responsive to the substructure not being active, setting a pointer to the substructure to a special value in the second progressive data structure.
means for, responsive to the substructure being active, storing the resulting rendering data for the substructure in a second progressive data structure; and means for, responsive to the substructure not being active, setting a pointer to the substructure to a special value in the second progressive data structure.
7. A computer usable medium comprising instructions embodied thereon for performing a method for processing different versions of a progressive data structure in a data pipeline in an image generation system, the progressive data structure comprising attributes for one or more components of a scene and having a format comprising a header section with a table having one or more pointers to one or more data substructures, the method comprising:
determining whether each substructure in a first progressive structure is active; and responsive to the substructure being active, performing rendering computations producing resulting rendering data.
determining whether each substructure in a first progressive structure is active; and responsive to the substructure being active, performing rendering computations producing resulting rendering data.
8. The computer usable medium of claim 7 further comprising instructions embodied thereon for performing:
responsive to the substructure being active, storing the resulting rendering data for the substructure in a second progressive data structure;
and responsive to the substructure not being active, setting a pointer to the substructure to a special value in the second progressive data structure.
responsive to the substructure being active, storing the resulting rendering data for the substructure in a second progressive data structure;
and responsive to the substructure not being active, setting a pointer to the substructure to a special value in the second progressive data structure.
9. A method for processing different versions of a progressive data structure in a data pipeline in an image generation system, the progressive data structure comprising attributes for one or more components of a scene and having a format comprising a header section with a table having one or more pointers to one or more data substructures comprising:
formatting incoming data having attributes for one or more components of a scene into a first stage progressive data structure including a substructure having attributes for one or more components of the scene;
determining whether each substructure in the first stage progressive structure is active or not for a current frame;
responsive to the substructure not being active, setting a pointer to the substructure to a special value in a second stage progressive data structure;
and responsive to the substructure being active, performing rendering computations producing resulting rendering data, and storing the resulting rendering data for the substructure in the second stage progressive data structure.
formatting incoming data having attributes for one or more components of a scene into a first stage progressive data structure including a substructure having attributes for one or more components of the scene;
determining whether each substructure in the first stage progressive structure is active or not for a current frame;
responsive to the substructure not being active, setting a pointer to the substructure to a special value in a second stage progressive data structure;
and responsive to the substructure being active, performing rendering computations producing resulting rendering data, and storing the resulting rendering data for the substructure in the second stage progressive data structure.
10. The method of claim 9 wherein formatting incoming data further comprises formatting current viewpoint data in the incoming data into one or more substructures of the first stage progressive data structure.
11. The method of claim 10 further comprising locating current viewpoint data in the second stage progressive data structure; and determining memory locations in a graphics database for data in a displayable vicinity of a current viewpoint for the frame.
12. The method of claim 11 further comprising:
retrieving the data in the vicinity of the current viewpoint; and transferring the retrieved data to a memory accessible by one or more channels.
retrieving the data in the vicinity of the current viewpoint; and transferring the retrieved data to a memory accessible by one or more channels.
13. The method of claim 11 further comprising:
responsive to the data in the vicinity of the current viewpoint having changed from a previous retrieval, retrieving the data in the vicinity of the current viewpoint; and transferring the retrieved data to a memory accessible by one or more channels.
responsive to the data in the vicinity of the current viewpoint having changed from a previous retrieval, retrieving the data in the vicinity of the current viewpoint; and transferring the retrieved data to a memory accessible by one or more channels.
14. The method of claim 9 further comprising:
identifying an intersection request within a substructure of the second stage progressive structure;
for each substructure in the second stage structure eligible for the intersection request, storing the eligible substructure in an intersection progressive data structure;
for each substructure in the second stage structure ineligible for the intersection request, setting the pointer to each ineligible substructure to a special value within the intersection progressive structure;
for the identified intersection request, performing an intersection analysis based on the substructures eligible for the request resulting in intersection data; and building a subsequent second stage progressive structure based upon the intersection data.
identifying an intersection request within a substructure of the second stage progressive structure;
for each substructure in the second stage structure eligible for the intersection request, storing the eligible substructure in an intersection progressive data structure;
for each substructure in the second stage structure ineligible for the intersection request, setting the pointer to each ineligible substructure to a special value within the intersection progressive structure;
for the identified intersection request, performing an intersection analysis based on the substructures eligible for the request resulting in intersection data; and building a subsequent second stage progressive structure based upon the intersection data.
15. The method of claim 9 further comprising:
determining channel view parameters;
determining whether a substructure in the second stage structure is active or not based upon the channel view parameters;
responsive to the substructure not being active, setting a pointer to the substructure to a special value in a rendering progressive data structure; and responsive to the substructure being active, performing rendering computations for the substructure and storing resulting rendering data for the substructure in the rendering progressive data structure, the resulting rendering data having a format usable by a graphics pipeline.
determining channel view parameters;
determining whether a substructure in the second stage structure is active or not based upon the channel view parameters;
responsive to the substructure not being active, setting a pointer to the substructure to a special value in a rendering progressive data structure; and responsive to the substructure being active, performing rendering computations for the substructure and storing resulting rendering data for the substructure in the rendering progressive data structure, the resulting rendering data having a format usable by a graphics pipeline.
16. A system for processing different versions of a progressive data structure in a data pipeline in an image generation system, the progressive data structure comprising attributes for one or more components of a scene and having a format comprising a header section with a table having one or more pointers to one or more data substructures comprising:
a computer system having a programmable processor, a graphics pipeline communicatively coupled via a communication infrastructure to the processor, and a memory accessible via the communication infrastructure to the processor and the graphics pipeline;
a first stage progressive data builder module being stored in said memory comprising instructions for execution by the computer system for formatting incoming data having attributes for one or more components of a scene into a first stage progressive data structure including a substructure having attributes for one or more components of the scene; and a second stage progressive builder module being stored in said memory comprising instructions for execution by the computer system for determining whether each substructure in the first stage progressive structure is active or not for a current frame, responsive to the substructure not being active, setting a pointer to the substructure to a special value in a second stage progressive data structure, responsive to the substructure being active, performing rendering computations producing resulting rendering data, and storing the resulting rendering data for the substructure in the second stage progressive data structure.
a computer system having a programmable processor, a graphics pipeline communicatively coupled via a communication infrastructure to the processor, and a memory accessible via the communication infrastructure to the processor and the graphics pipeline;
a first stage progressive data builder module being stored in said memory comprising instructions for execution by the computer system for formatting incoming data having attributes for one or more components of a scene into a first stage progressive data structure including a substructure having attributes for one or more components of the scene; and a second stage progressive builder module being stored in said memory comprising instructions for execution by the computer system for determining whether each substructure in the first stage progressive structure is active or not for a current frame, responsive to the substructure not being active, setting a pointer to the substructure to a special value in a second stage progressive data structure, responsive to the substructure being active, performing rendering computations producing resulting rendering data, and storing the resulting rendering data for the substructure in the second stage progressive data structure.
17. The system of claim 16 further comprising a builder module for data retrieval being stored in said memory comprising instructions for execution by the computer system for locating current viewpoint data in the second stage progressive data structure, and determining memory locations in a graphics database for data in a displayable vicinity of a current viewpoint for the frame.
18. The system of claim 17 wherein the builder module for data retrieval further comprises instructions for retrieving the data in the vicinity of the current viewpoint, and transferring the retrieved data to a memory accessible by one or more channels.
19. The system of claim 17 wherein the builder module for data retrieval further comprises responsive to the data in the vicinity of the current viewpoint having changed from a previous retrieval, retrieving the data in the vicinity of the current viewpoint, and transferring the retrieved data to a memory accessible by one or more channels.
20. The system of claim 16 further comprising:
a builder module being stored in said memory comprising instructions for execution by the computer system for identifying an intersection request within a substructure of the second stage progressive structure, for each substructure in the second stage structure eligible for the intersection request, storing the eligible substructure in an intersection progressive data structure, for each substructure in the second stage structure ineligible for the intersection request, setting the pointer to each ineligible substructure to a special value within the intersection progressive structure; and an intersection unit being stored in said memory comprising instructions for execution by the computer system for performing an intersection analysis for the identified intersection request based on the substructures eligible for the request resulting in intersection data.
a builder module being stored in said memory comprising instructions for execution by the computer system for identifying an intersection request within a substructure of the second stage progressive structure, for each substructure in the second stage structure eligible for the intersection request, storing the eligible substructure in an intersection progressive data structure, for each substructure in the second stage structure ineligible for the intersection request, setting the pointer to each ineligible substructure to a special value within the intersection progressive structure; and an intersection unit being stored in said memory comprising instructions for execution by the computer system for performing an intersection analysis for the identified intersection request based on the substructures eligible for the request resulting in intersection data.
21. The system of claim 16 further comprising a rendering builder module being stored in said memory comprising instructions for execution by the computer system for determining channel view parameters, determining whether a substructure in the second stage structure is active or not based upon the channel view parameters, responsive to the substructure not being active, setting a pointer to the substructure to a special value in a rendering progressive data structure, and responsive to the substructure being active, performing rendering computations for the substructure and storing resulting rendering data for the substructure in the rendering progressive data structure, the resulting rendering data having a format usable by a graphics pipeline.
22. A system for processing different versions of a progressive data structure in a data pipeline in an image generation system, the progressive data structure comprising attributes for one or more components of a scene and having a format comprising a header section with a table having one or more pointers to one or more data substructures comprising:
means for formatting incoming data having attributes for one or more components of a scene into a first stage progressive data structure including a substructure having attributes for one or more components of the scene;
means for determining whether each substructure in the first stage progressive structure is active or not for a current frame;
means for, responsive to the substructure not being active, setting a pointer to the substructure to a special value in a second stage progressive data structure; and means for, responsive to the substructure being active, performing rendering computations producing resulting rendering data, and storing the resulting rendering data for the substructure in the second stage progressive data structure.
means for formatting incoming data having attributes for one or more components of a scene into a first stage progressive data structure including a substructure having attributes for one or more components of the scene;
means for determining whether each substructure in the first stage progressive structure is active or not for a current frame;
means for, responsive to the substructure not being active, setting a pointer to the substructure to a special value in a second stage progressive data structure; and means for, responsive to the substructure being active, performing rendering computations producing resulting rendering data, and storing the resulting rendering data for the substructure in the second stage progressive data structure.
23. The system of claim 22 wherein the means for formatting incoming data further comprises means for formatting current viewpoint data in the incoming data into one or more substructures of the first stage progressive data structure.
24. The system of claim 23 further comprising means for locating current viewpoint data in the second stage progressive data structure; and means for determining memory locations in a graphics database for data in a displayable vicinity of a current viewpoint for the frame.
25. The system of claim 24 further comprising:
means for retrieving the data in the vicinity of the current viewpoint; and means for transferring the retrieved data to a memory accessible by one or more channels.
means for retrieving the data in the vicinity of the current viewpoint; and means for transferring the retrieved data to a memory accessible by one or more channels.
26. The system of claim 24 further comprising:
means for, responsive to the data in the vicinity of the current viewpoint having changed from a previous retrieval, retrieving the data in the vicinity of the current viewpoint; and means for transferring the retrieved data to a memory accessible by one or more channels.
means for, responsive to the data in the vicinity of the current viewpoint having changed from a previous retrieval, retrieving the data in the vicinity of the current viewpoint; and means for transferring the retrieved data to a memory accessible by one or more channels.
27. The system of claim 22 further comprising:
means for identifying an intersection request within a substructure of the second stage progressive structure;
means for, for each substructure in the second stage structure eligible for the intersection request, storing the eligible substructure in an intersection progressive data structure;
means for, for each substructure in the second stage structure ineligible for the intersection request, setting the pointer to each ineligible substructure to a special value within the intersection progressive structure; and means for, for the identified intersection request, performing an intersection analysis based on the substructures eligible for the request resulting in intersection data.
means for identifying an intersection request within a substructure of the second stage progressive structure;
means for, for each substructure in the second stage structure eligible for the intersection request, storing the eligible substructure in an intersection progressive data structure;
means for, for each substructure in the second stage structure ineligible for the intersection request, setting the pointer to each ineligible substructure to a special value within the intersection progressive structure; and means for, for the identified intersection request, performing an intersection analysis based on the substructures eligible for the request resulting in intersection data.
28. The system of claim 22 further comprising:
means for determining channel view parameters;
means for determining whether a substructure in the second stage structure is active or not based upon the channel view parameters;
means for, responsive to the substructure not being active, setting a pointer to the substructure to a special value in a rendering progressive data structure; and means for, responsive to the substructure being active, performing rendering computations for the substructure and storing resulting rendering data for the substructure in the rendering progressive data structure, the resulting rendering data having a format usable by a graphics pipeline.
means for determining channel view parameters;
means for determining whether a substructure in the second stage structure is active or not based upon the channel view parameters;
means for, responsive to the substructure not being active, setting a pointer to the substructure to a special value in a rendering progressive data structure; and means for, responsive to the substructure being active, performing rendering computations for the substructure and storing resulting rendering data for the substructure in the rendering progressive data structure, the resulting rendering data having a format usable by a graphics pipeline.
29 29. An image generation system comprising:
a plurality of nodes networked in a clustered system architecture, the plurality of nodes including a front end node having a data interface for communication with the image generation system, and one or more back end nodes for performing different functions related to image generation;
the plurality of nodes being networked via a progressive data structure network for the communication from the front end node to the one or more back end nodes of data having a progressive data structure format, the format comprising a header section with a table having one or more pointers to one or more data substructures; and the plurality of nodes being networked via a system network for the communication of data including status data.
a plurality of nodes networked in a clustered system architecture, the plurality of nodes including a front end node having a data interface for communication with the image generation system, and one or more back end nodes for performing different functions related to image generation;
the plurality of nodes being networked via a progressive data structure network for the communication from the front end node to the one or more back end nodes of data having a progressive data structure format, the format comprising a header section with a table having one or more pointers to one or more data substructures; and the plurality of nodes being networked via a system network for the communication of data including status data.
30. The image generation system of claim 29 wherein the data of the progressive data structure network is transmitted using a multicast transmission data protocol.
31. The image generation system of claim 29 wherein the data of the progressive data structure network is transmitted using a broadcast transmission data protocol.
32. The image generation system of claim 29 wherein the front end node comprises:
a first stage progressive data builder module for formatting incoming data having attributes for one or more components of a scene into a first stage progressive data structure including a substructure having attributes for one or more components of the scene;
a second stage progressive builder module for determining whether each substructure in the first stage progressive structure is active or not for a current frame, responsive to the substructure not being active, setting a pointer to the substructure to a special value in a second stage progressive data structure, responsive to the substructure being active, performing rendering computations producing resulting rendering data, and storing the resulting rendering data for the substructure in the second stage progressive data structure; and the front-end node transmitting the second stage structure to the back-end node via the progressive data structure network.
a first stage progressive data builder module for formatting incoming data having attributes for one or more components of a scene into a first stage progressive data structure including a substructure having attributes for one or more components of the scene;
a second stage progressive builder module for determining whether each substructure in the first stage progressive structure is active or not for a current frame, responsive to the substructure not being active, setting a pointer to the substructure to a special value in a second stage progressive data structure, responsive to the substructure being active, performing rendering computations producing resulting rendering data, and storing the resulting rendering data for the substructure in the second stage progressive data structure; and the front-end node transmitting the second stage structure to the back-end node via the progressive data structure network.
33. The system of claim 32 wherein a back-end node comprises:
a builder module for traversing the second stage structure resulting in a set of data; and a functional module for performing processing based on the set of data.
a builder module for traversing the second stage structure resulting in a set of data; and a functional module for performing processing based on the set of data.
34. The system of claim 33 wherein the front end node comprises a computer system, comprising a plurality of programmable processors and a graphics pipeline subsystem, a first programmable processor of the plurality executing the first stage builder and a second programmable processor of the plurality executing the second stage builder.
35. The system of claim 33 wherein one of the back end nodes comprises a computer system, comprising a plurality of programmable processors, a first programmable processor of the plurality executing the builder and a second programmable processor executing the functional module.
36. The system of claim 29 wherein the plurality of nodes comprises a data retrieval node and a rendering node networked in a third network providing asynchronous database access.
37. In an image generation system, a computer usable medium comprising a data structure for organizing data for the rendering of one or more image components, the data structure comprising a progressive data structure having a format comprising a header section having a table having one or more pointers to one or more data substructures, the data substructures including a substructure having attributes for one or more components of a scene
38. A data transmission medium having a data structure for organizing data for the rendering of one or more image components in an image generation system, the data structure comprising:
a progressive data structure having a format comprising a header section having a table having one or more pointers to one or more data substructures, the data substructures including a substructure having attributes for one or more components of a scene.
a progressive data structure having a format comprising a header section having a table having one or more pointers to one or more data substructures, the data substructures including a substructure having attributes for one or more components of a scene.
Applications Claiming Priority (3)
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| US10/102,421 US6714203B1 (en) | 2002-03-19 | 2002-03-19 | Data aware clustered architecture for an image generator |
| US10/102,421 | 2002-03-19 | ||
| PCT/US2003/008798 WO2003081445A1 (en) | 2002-03-19 | 2003-03-19 | Data aware clustered architecture for an image generator |
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| CA2479240A1 true CA2479240A1 (en) | 2003-10-02 |
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| JP2002095018A (en) * | 2000-09-12 | 2002-03-29 | Canon Inc | Image display controller, image display system and method for displaying image data |
-
2002
- 2002-03-19 US US10/102,421 patent/US6714203B1/en not_active Expired - Lifetime
-
2003
- 2003-03-19 AU AU2003220459A patent/AU2003220459A1/en not_active Abandoned
- 2003-03-19 WO PCT/US2003/008798 patent/WO2003081445A1/en not_active Application Discontinuation
- 2003-03-19 CA CA2479240A patent/CA2479240C/en not_active Expired - Fee Related
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2004
- 2004-03-05 US US10/795,725 patent/US6940513B2/en not_active Expired - Lifetime
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|---|---|
| AU2003220459A1 (en) | 2003-10-08 |
| CA2479240C (en) | 2010-08-10 |
| US6940513B2 (en) | 2005-09-06 |
| US20040169657A1 (en) | 2004-09-02 |
| US6714203B1 (en) | 2004-03-30 |
| WO2003081445A1 (en) | 2003-10-02 |
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