CA2617373A1 - Improved terrain rendering in a three-dimensional environment - Google Patents
Improved terrain rendering in a three-dimensional environment Download PDFInfo
- Publication number
- CA2617373A1 CA2617373A1 CA002617373A CA2617373A CA2617373A1 CA 2617373 A1 CA2617373 A1 CA 2617373A1 CA 002617373 A CA002617373 A CA 002617373A CA 2617373 A CA2617373 A CA 2617373A CA 2617373 A1 CA2617373 A1 CA 2617373A1
- Authority
- CA
- Canada
- Prior art keywords
- vertices
- texels
- database
- buffer
- tile assembly
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000009877 rendering Methods 0.000 title claims abstract 6
- 239000000872 buffer Substances 0.000 claims abstract 14
- 230000000007 visual effect Effects 0.000 claims abstract 2
- 230000003595 spectral effect Effects 0.000 claims 4
- 239000000284 extract Substances 0.000 claims 1
- 239000000463 material Substances 0.000 claims 1
- 230000000704 physical effect Effects 0.000 claims 1
Landscapes
- Image Generation (AREA)
Abstract
A system for rendering terrain from a viewpoint, the viewpoint having an area of regard, comprises a database, for storing vertices and texture maps.
The vertices represent points on a surface of an object to be rendered and the texture maps represent visual properties of the surface of an object to be rendered. A first database retrieval module retrieves vertices from the database and stores the retrieved vertices in a tile assembly buffer. A first tile assembly buffer is communicatively coupled to the first database retrieval module and stores a plurality of vertices included within the area of regard. At least one sector buffer stores vertices extracted from the first tile assembly buffer, and assembles the extracted vertices into geometric primitives for rendering. A
graphics pipeline renders the geometric primitives.
The vertices represent points on a surface of an object to be rendered and the texture maps represent visual properties of the surface of an object to be rendered. A first database retrieval module retrieves vertices from the database and stores the retrieved vertices in a tile assembly buffer. A first tile assembly buffer is communicatively coupled to the first database retrieval module and stores a plurality of vertices included within the area of regard. At least one sector buffer stores vertices extracted from the first tile assembly buffer, and assembles the extracted vertices into geometric primitives for rendering. A
graphics pipeline renders the geometric primitives.
Claims (6)
1. A system for rendering terrain from a viewpoint, the viewpoint having an area of regard, the system comprising:
a database, for storing vertices and texture maps, the vertices representing points on a surface of an object to be rendered, the texture maps representing visual properties of the surface of an object to be rendered;
a first database retrieval module, for retrieving vertices from the database and storing the retrieved vertices in a tile assembly buffer;
a first tile assembly buffer, communicatively coupled to the first database retrieval module, for storing a plurality of vertices included within the area of regard;
at least one sector buffer, for storing vertices extracted from the first tile assembly buffer, and for assembling the extracted vertices into geometric primitives for rendering; and a graphics pipeline for rendering the geometric primitives.
a database, for storing vertices and texture maps, the vertices representing points on a surface of an object to be rendered, the texture maps representing visual properties of the surface of an object to be rendered;
a first database retrieval module, for retrieving vertices from the database and storing the retrieved vertices in a tile assembly buffer;
a first tile assembly buffer, communicatively coupled to the first database retrieval module, for storing a plurality of vertices included within the area of regard;
at least one sector buffer, for storing vertices extracted from the first tile assembly buffer, and for assembling the extracted vertices into geometric primitives for rendering; and a graphics pipeline for rendering the geometric primitives.
2. The system of claim 1, wherein the first tile assembly buffer is addressed toroidally.
3. The system of claim 1, wherein vertices stored in the sector buffers are addressed toroidally.
4. The system of claim 1, further comprising:
a second database retrieval module for retrieving a plurality of texels from the database;
a second tile assembly buffer for storing the retrieved texels included within the area of regard;
a toroidalizer, which extracts texels from the second tile assembly buffer and inserts the extracted texels in a subload buffer; and a subload buffer, which retrieves texels from the toroidalizer, and stores texels to be included in a texture map.
a second database retrieval module for retrieving a plurality of texels from the database;
a second tile assembly buffer for storing the retrieved texels included within the area of regard;
a toroidalizer, which extracts texels from the second tile assembly buffer and inserts the extracted texels in a subload buffer; and a subload buffer, which retrieves texels from the toroidalizer, and stores texels to be included in a texture map.
5. The system of claim 4, wherein the second database retrieval module is further configured to retrieve spectral texels from the scene database, and to map the spectral texels to intensity texels, the intensity texels representing a perceived appearance of the spectral texels by a sensor.
6. The system of claim 5, wherein the spectral texels include material references indicative of physical properties of the surface to be textured.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US10/102,234 US6747649B1 (en) | 2002-03-19 | 2002-03-19 | Terrain rendering in a three-dimensional environment |
| US10/102,234 | 2002-03-19 | ||
| CA002479344A CA2479344C (en) | 2002-03-19 | 2003-03-19 | Improved terrain rendering in a three-dimensional environment |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002479344A Division CA2479344C (en) | 2002-03-19 | 2003-03-19 | Improved terrain rendering in a three-dimensional environment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CA2617373A1 true CA2617373A1 (en) | 2003-10-02 |
| CA2617373C CA2617373C (en) | 2012-06-05 |
Family
ID=39264358
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA2617373A Expired - Fee Related CA2617373C (en) | 2002-03-19 | 2003-03-19 | Improved terrain rendering in a three-dimensional environment |
Country Status (1)
| Country | Link |
|---|---|
| CA (1) | CA2617373C (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107481307A (en) * | 2017-07-05 | 2017-12-15 | 国网山东省电力公司泰安供电公司 | A kind of method of Fast rendering three-dimensional scenic |
| CN110073416A (en) * | 2016-08-18 | 2019-07-30 | 罗伯特·博世有限公司 | System and method for the Program Generating building figure in the street network of three-dimensional virtual environment |
| US10580191B2 (en) | 2016-06-12 | 2020-03-03 | Apple Inc. | Procedural terrain generation systems and related methods |
| CN115100364A (en) * | 2022-08-25 | 2022-09-23 | 广东电网有限责任公司 | Visualization method, device, equipment and medium for laser point cloud data of power transmission line |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102015120930A1 (en) * | 2015-12-02 | 2017-06-08 | Krauss-Maffei Wegmann Gmbh & Co. Kg | Method for displaying a simulation environment |
-
2003
- 2003-03-19 CA CA2617373A patent/CA2617373C/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10580191B2 (en) | 2016-06-12 | 2020-03-03 | Apple Inc. | Procedural terrain generation systems and related methods |
| CN110073416A (en) * | 2016-08-18 | 2019-07-30 | 罗伯特·博世有限公司 | System and method for the Program Generating building figure in the street network of three-dimensional virtual environment |
| CN110073416B (en) * | 2016-08-18 | 2024-01-16 | 罗伯特·博世有限公司 | System and method for generating building graphics by programs within a street network of a three-dimensional virtual environment |
| CN107481307A (en) * | 2017-07-05 | 2017-12-15 | 国网山东省电力公司泰安供电公司 | A kind of method of Fast rendering three-dimensional scenic |
| CN107481307B (en) * | 2017-07-05 | 2023-04-07 | 国网山东省电力公司泰安供电公司 | Method for rapidly rendering three-dimensional scene |
| CN115100364A (en) * | 2022-08-25 | 2022-09-23 | 广东电网有限责任公司 | Visualization method, device, equipment and medium for laser point cloud data of power transmission line |
Also Published As
| Publication number | Publication date |
|---|---|
| CA2617373C (en) | 2012-06-05 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request | ||
| MKLA | Lapsed |
Effective date: 20160321 |