LOD model automatic switching method and device, electronic equipment and storage medium

An automatic switching and model technology, applied in 3D image processing, processor architecture/configuration, image data processing, etc., can solve problems such as incompatibility and heavy workload

Active Publication Date: 2021-01-12
江西博微新技术有限公司
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

This method works well, but the workload is heavy and it is not universal

Method used

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  • LOD model automatic switching method and device, electronic equipment and storage medium
  • LOD model automatic switching method and device, electronic equipment and storage medium
  • LOD model automatic switching method and device, electronic equipment and storage medium

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Embodiment Construction

[0049] In order to make the purpose, technical embodiment and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0050] It should be noted that the descriptions involving "first", "second", etc. in the present invention are only for descriptive purposes, and should not be understood as indicating or implying their relative importance or implicitly indicating the number of indicated technical features . Thus, the features defined as "first" and "second" may explicitly or implicitly include at least ...

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Abstract

The invention relates to the technical field of LOD model construction, and provides an LOD model automatic switching method and device, electronic equipment and a storage medium, and the method comprises the steps: determining a target body obtained after zooming or moving in a current visual window, and building a bounding box corresponding to the target body; calculating a display pixel value of the bounding box on the visual window according to the pixel value of the projection of the bounding box on the visual window; selecting an LOD model matched with the bounding box according to the display pixel value of the bounding box on the visual window and a preset matching rule; and calling a glBuffer Data interface of the OpenGL to transmit the determined LOD model to a display card so asto render a target body obtained after zooming or moving. According to the invention, during real-time rendering, the model with the corresponding accuracy can be selected for rendering according tothe switching parameter corresponding to the size of the current target body model.

Description

technical field [0001] The present invention relates to the technical field of LOD model construction, in particular to a method, device, electronic equipment and storage medium for automatic switching of LOD models. Background technique [0002] LOD (Levels of Detail), that is, multi-level of detail technology, is a technology that selects a suitable fineness model for efficient rendering according to the distance between the 3D model and the viewport (or the pixel size rendered by the viewport of the model). [0003] When the target body in the visualization window is switched from the original LOD model to another level of LOD model, the target body is farther away from the viewport, and the rendering size of the target body in the visualization window becomes smaller. At this time, the rougher target body model is used to replace the original Accurate target volume model is used for rendering, and the rendering effect of the target volume is basically not affected, but...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06T15/00G06T1/20G06F17/16
CPCG06F17/16G06T1/20G06T15/005
Inventor 欧阳强郝海风曾江佑师浩龙万旻
Owner 江西博微新技术有限公司
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