Adaptively Stepped SPH for Fluid Animation Based on Asynchronous Time Integration
Adaptively Stepped SPH for Fluid Animation Based on Asynchronous Time Integration
复制标题
基于异步时间积分的自适应步进SPH流体动画
DOI：
10.1007/s00521-016-2286-8
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发表时间：
2017
影响因子：
6
通讯作者：
Lipeng Wang
中科院分区：
文献类型：
--
作者：
Xiaojuan Ban;Xiaokun Wang;Liangliang He;Yalan Zhang;Lipeng Wang
我们提出了一种新颖的 SPH 流体自适应步进方案，其中粒子具有根据局部条件确定的自己的时间步长，例如符合条件。这些单独的时间步长受到全局收敛和稳定性的限制。然后流体粒子被异步更新。该方法自然地将计算资源分配给视觉上复杂的区域，例如碰撞剧烈的区域，从而减少总体计算时间。实验表明，我们的方法比标准方法和全局自适应时间步长的方法更有效，特别是在高度动态的场景中。
We present a novel adaptive stepping scheme for SPH fluids, in which particles have their own time steps determined from local conditions, e.g. courant condition. These individual time steps are constrained for global convergence and stability. Fluid particles are then updated asynchronously. The approach naturally allocates computing resources to visually complex regions, e.g. regions with intense collisions, thereby reducing the overall computational time. The experiments show that our approach is more efficient than the standard method and the method with globally adaptive time steps, especially in highly dynamic scenes.