Fire-Oriented Dynamic Visualization For Architectural Structure

Simulation of disaster scenes has always been an important research hotspot in computer graphics.It has been also playing an important role in a large number of film and television works and electronic games.The effect of simulation is one of the significant factors that affect the users' realistic feelings.Fire simulation is particularly frequently applied in various scenarios.However,there are still many deficiencies in the existing fire scene simulation methods.For example,the expression forms are too fixed to take into consideration the complex effects that the fire may bring to the objects in the scene.For this reason,this paper proposes a dynamic visualization method for fire-oriented architecture structures which can simulate according to the disaster level the possible texture changes,crack changes,collapses,and destructions of the architecture in the fire.Main work of this dissertation is as follow:1)Texture synthesis based on fractal noise is adopted to simulate the texture changes of the architecture structures destructed by the fire,such as surface blackening while normal mapping is adopted to simulate crack changes of the architecture structures in the fire disasters.In addition,an automatic script generation method is proposed to efficiently obtain normal textures.2)A diversified real-time fracturing simulation method of rigid body based on Voronoi diagram is proposed to simulate the possible collapses,explosions and other destructions of the architecture structures in fire.By summarizing the common fracturing types,three different seed point generation patterns and two different fracturing behavioral simulation methods were concluded,through different combinations of which different fracturing effects can be achieved.And possible applications of the method are further analyzed.3)A fire-oriented dynamic visualization demonstration system based on Unity3D engine for architectural structure is designed and implemented.Experimental design and analysis of this system are performed.