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

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 ...

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] The dynamic deformation of the model in the 3D scene requires a lot of computing resources. For the deformation of large-scale 3D models or character actions, the discrete LOD (Level Of Details) method is generally used to reduce the drawing triangles to speed up the drawing speed. However, the problem is that when the LOD is simplified When the level is too large, the model becomes very rough, and the coherence of the deformation action is poor, which seriously affects the sense of reality

The process of deformation usually consumes a lot of computing resources, so when the scene contains a large number of deformed objects or characters, the real-time rendering cannot be achieved

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