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Level of detail transitions for geometric objects in a graphics application
US9105129B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9105129-B2 |
| Application number | US-201213626296-A |
| Country | US |
| Kind code | B2 |
| Filing date | Sep 25, 2012 |
| Priority date | Jun 5, 2012 |
| Publication date | Aug 11, 2015 |
| Grant date | Aug 11, 2015 |
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Abstract
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Systems and methods for providing smooth level of detail transitions for geometric objects, such as geometric terrain tiles, are provided. In one embodiment, a parent geometric tile associated with a first level of detail can be partitioned into sub-tiles. The sub-tiles can be blended independently with child geometric tiles associated with a second level of detail. The blends can be adjusted as a function of camera distance over a transition range to provide a smooth level of detail transition. Various enhancements and modifications can be made to the level of detail transition, such as implementing a bias in the level of detail calculation, implementing an unpop algorithm over only a subset of the transition range, implementing a time based fade during a camera stop, and other enhancements.
First claim
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What is claimed is: 1. A computer-implemented method for providing level of detail transitions in a system for displaying geographic imagery, comprising: displaying, in a user interface of a display device, a representation of a geographic area at a first camera distance associated with a first level of detail, the representation at the first camera distance comprising a first geometric tile associated the geographic area, the first geometric tile being rendered at the first level…
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Physics · mapped topic
Physics · mapped topic
- G06T17/05Primary
Physics · mapped topic
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- What does patent US9105129B2 cover?
- Systems and methods for providing smooth level of detail transitions for geometric objects, such as geometric terrain tiles, are provided. In one embodiment, a parent geometric tile associated with a first level of detail can be partitioned into sub-tiles. The sub-tiles can be blended independently with child geometric tiles associated with a second level of detail. The blends can be adjusted a…
- Who is the assignee on this patent?
- Rohlf John H, Google Inc
- What technology area does this patent fall under?
- Primary CPC classification G06T17/05. Mapped technology areas include Physics.
- When was this patent published?
- Publication date Tue Aug 11 2015 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).