虛擬環(huán)境中軟體的包圍盒更新方法分析

講述了軟體采用層次包圍盒方法進行碰撞檢測時，針對連續(xù)變形包圍盒樹的兩類
更新方法：靜態(tài)更新和動態(tài)更新，對靜態(tài)更新方法中的自上而下、自下而上和混合更新方法，動態(tài)更新方法中的離散法和連續(xù)法進行了分析，并利用實驗數(shù)據(jù)比較了各種算法在不同仿真環(huán)境下的運算速度。結(jié)果顯示，混合更新方法和連續(xù)法在虛擬現(xiàn)實環(huán)境中具有更好的性能。
關(guān)鍵詞：包圍盒更新方法；自上而下；自下而上；混合更新；運動包圍盒層次結(jié)構(gòu)
Abstract: When deformable collision detection used the Bounding Volume Hierarchies
approach, two kinds of strategy for updating hierarchy in order to handle continuously
deforming:static and dynamic approaches were described.Top-down,bottom-up and hybrid
updating approaches of static method,discrete and continuous approaches of dynamic method were analyzed.Experiment data was used to compare all these methods with their compute speed in different simulation environments.The results show that, the hybrid and continuous approaches have better performance than other approaches in virtual reality environments.
Keywords: strategies for updating hierarchy;top-down;bottom-up;hybrid;kinetic bounding
volume hierarchies