Simplifying method for rendering three-dimensional scene based on dynamic Billboard technique

A three-dimensional scene and dynamic technology, applied in image data processing, 3D modeling, instruments, etc., can solve problems such as inability to achieve real-time performance, difficult to balance, consume large computing resources, etc., and achieve the effect of simplifying the complexity of drawing

Inactive Publication Date: 2008-10-01
BEIJING INSTITUTE OF TECHNOLOGYGY
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  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Under the existing computer software and hardware conditions, there is a big contradiction between the complexity of the model and the complexity of drawing and real-time performance.
Especially the drawing of large-scale dynamic scenes, such as the simulation of large-scale plaza performances involving people, the simulation of large public places, the simulation of outdoor natural scenes involving the environment, and the simulation of battlefield environments. There are often thousands of characters moving at the same time. The traditional deformation method is accurate but has a large amount of calculation, which cannot achieve real-time calculation and scene rendering.
[0003]

Method used

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  • Simplifying method for rendering three-dimensional scene based on dynamic Billboard technique
  • Simplifying method for rendering three-dimensional scene based on dynamic Billboard technique
  • Simplifying method for rendering three-dimensional scene based on dynamic Billboard technique

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Embodiment Construction

[0033] The present invention will be further described below in conjunction with drawings and embodiments.

[0034] figure 1 Is the flowchart of the algorithm of the present invention, the method of the present invention according to figure 1 The process, the operation includes the following specific steps:

[0035] (1) Input of two-dimensional image

[0036] Perform 2D projection on dynamically changing characters in 3D scenes, or directly use their 2D images.

[0037] (2) Establishment of bone model

[0038] 1) Calibrate the deformation joint points for the image deformation area.

[0039] 2) Refer to figure 2 , to build a deformation mesh for each joint point. According to the length, width and angle information of the two bones connected by the joint points, the hyperbolic equations on both sides of the bones are established. By adjusting the parameters of the curve, the joints of the curves can be continuously guided twice to avoid the unsmooth distortion of the j...

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Abstract

The invention discloses a method for simplifying three-dimensional scene drawing based on a dynamic Billboard technology, relates to a high-efficiency, real-time dynamic three-dimensional scene drawing simplification and large-scale dynamic three-dimensional scene real-time drawing technology, belonging to the computer application field, especially belonging to the field of computer graphics and virtual reality. According to the method, a real-time deformation result of a two-dimensional image is used to replace dynamic indication of a virtual object in a three-dimensional scene. A real model is projected as a two-dimensional image, a simple skelecton frame of a deformation region is marked for the projected image; motion deformation of the two-dimensional image role or object is realized by controlling a curve skelecton model; a technology for drawing venation is used to bind the deformation result on a Billboard so as to simplify the scene drawing complexity and realize real-time drawing of a large-scale dynamic scene. Based on experiments, the method can effectively solve the contradiction between the authenticity and real-time performance of the large-scale dynamic scene during drawing the large-scale deformation scene of repeating or similar objects.

Description

technical field [0001] The invention relates to a large-scale dynamic three-dimensional scene real-time rendering technology and a dynamic Billboard-based deformation object rendering simplified technology. The invention is an efficient and real-time dynamic three-dimensional scene drawing simplification method, which belongs to the field of computer applications, in particular to the technical fields of computer graphics and virtual reality. technical background [0002] The virtual environment tends to be large and complex, and real-time performance is one of the important goals pursued by the virtual reality system. Under the existing computer software and hardware conditions, there is a great contradiction between the complexity of the model, the complexity of drawing and the real-time performance. Especially the drawing of large-scale dynamic scenes, such as large-scale plaza performance simulation involving people, large-scale public place simulation, outdoor natural ...

Claims

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Application Information

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IPC IPC(8): G06T17/00
Inventor 黄天羽李凤霞陈宇峰陈红倩张艳李立杰
Owner BEIJING INSTITUTE OF TECHNOLOGYGY
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