Sketch‐based shape‐constrained fireworks simulation in head‐mounted virtual reality
Sketch‐based shape‐constrained fireworks simulation in head‐mounted virtual reality
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DOI：
10.1002/cav.1920
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发表时间：
2020-03
影响因子：
1.1
通讯作者：
Xiaoyu Cui;Ruifan Cai;Xiangjun Tang;Z. Deng;Xiaogang Jin
中科院分区：
文献类型：
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作者：
Xiaoyu Cui;Ruifan Cai;Xiangjun Tang;Z. Deng;Xiaogang Jin
在本文中，我们提出了一种在HMD（头盔显示器）虚拟环境中使用草图特征线作为输入的具有丰富纹理的新颖形状约束烟花模拟方法。我们的方法首先使用基于草图的3D形状检索算法从三维（3D）模型数据库中检索对象。然后，为了逼近具有复杂结构的模型，我们引入了一种新的基于高斯曲率的点采样算法，该算法不仅存储了所选顶点的位置，还存储了纹理（UV）坐标信息用于纹理显示。此外，我们引入了多层次的爆炸过程，使烟花可以动态地形成特定的，视觉上令人愉悦的形状。通过我们的实验，我们证明了我们的方法可以产生比最先进的方法更好的结果。
In this paper we present a novel shape‐constrained fireworks simulation method with rich textures in an HMD (Helmet Mounted Display) virtual environment using sketched feature lines as input. Our approach first retrieves an object from a three‐dimensional (3D) model database using a sketch‐based 3D shape retrieval algorithm. Then, in order to approximate models with complex structures, we introduce a novel point sampling algorithm based on Gaussian curvatures, which stores not only the positions of the selected vertices but also the texture (UV) coordinates information for texture display. In addition, we introduce a multilevel explosion process so that the fireworks can dynamically form specific, visually pleasing shapes. Through our experiments, we demonstrate that our approach can produce better results than state‐of‐the‐art approaches.