<?xml version="1.0" encoding="utf-8" ?><rss version="2.0"><channel><title><![CDATA[小晞的博客]]></title><description><![CDATA[]]></description><link>https://blog.youkuaiyun.com/Sa_sha</link><language>zh-cn</language><generator>https://blog.youkuaiyun.com/</generator><copyright><![CDATA[Copyright &copy; Sa_sha]]></copyright><item><title><![CDATA[Lecture 4 欧拉视角]]></title><link>https://blog.youkuaiyun.com/Sa_sha/article/details/143833930</link><guid>https://blog.youkuaiyun.com/Sa_sha/article/details/143833930</guid><author>Sa_sha</author><pubDate>Sun, 17 Nov 2024 21:38:44 +0800</pubDate><description><![CDATA[采样点在空间中完全不动，观察材料以什么样的速度穿过该采样点。：联系了拉格朗日视角和欧拉视角不可压缩流体的速度场没有散度（=0），如果有散度的话，局部就会由于材料过度的流入/出导致这部分流体被拉伸/压缩，流体密度就会随之发生变化，这与不可压缩流体性质不符，所以速度场的散度应为0。把一个时间的PDE（偏微分方程）拆分成若干部分，使得每个部分都比较就好算拆分公式。]]></description><category></category></item><item><title><![CDATA[【1 ：NeRF、3D Gaussian Splatting】]]></title><link>https://blog.youkuaiyun.com/Sa_sha/article/details/143818374</link><guid>https://blog.youkuaiyun.com/Sa_sha/article/details/143818374</guid><author>Sa_sha</author><pubDate>Sat, 16 Nov 2024 18:26:35 +0800</pubDate><description><![CDATA[19世纪：摄影测量法（Photogrammetry）]]></description><category></category></item><item><title><![CDATA[【0： 概念点】]]></title><link>https://blog.youkuaiyun.com/Sa_sha/article/details/143817423</link><guid>https://blog.youkuaiyun.com/Sa_sha/article/details/143817423</guid><author>Sa_sha</author><pubDate>Sat, 16 Nov 2024 16:23:56 +0800</pubDate><description><![CDATA[对同一个物体或场景拍摄的中，尝试去重建该物体或场景的导出的3D模型可360°还原。**4D重建：**在3D基础上，加上时间轴！可以从不同角度（3D）观察同一部影片（时间流）。]]></description><category></category></item><item><title><![CDATA[Lecture 10 end]]></title><link>https://blog.youkuaiyun.com/Sa_sha/article/details/143815534</link><guid>https://blog.youkuaiyun.com/Sa_sha/article/details/143815534</guid><author>Sa_sha</author><pubDate>Sat, 16 Nov 2024 13:01:37 +0800</pubDate><description><![CDATA[弹簧质点系统（Mass-spring systems）简单凝练的方法更易被流传。显式、隐式时间积分器。]]></description><category></category></item><item><title><![CDATA[Lecture 9 高性能计算与物理引擎]]></title><link>https://blog.youkuaiyun.com/Sa_sha/article/details/143693615</link><guid>https://blog.youkuaiyun.com/Sa_sha/article/details/143693615</guid><author>Sa_sha</author><pubDate>Mon, 11 Nov 2024 23:37:55 +0800</pubDate><description><![CDATA[权衡模拟质量（精度）和性能。]]></description><category></category></item><item><title><![CDATA[Lecture 7 混合欧拉-拉格朗日视角（1）]]></title><link>https://blog.youkuaiyun.com/Sa_sha/article/details/143661980</link><guid>https://blog.youkuaiyun.com/Sa_sha/article/details/143661980</guid><author>Sa_sha</author><pubDate>Sun, 10 Nov 2024 22:14:25 +0800</pubDate><description><![CDATA[粒子对流方案。]]></description><category></category></item><item><title><![CDATA[Lecture 8 混合欧拉-拉格朗日视角（2）]]></title><link>https://blog.youkuaiyun.com/Sa_sha/article/details/143645693</link><guid>https://blog.youkuaiyun.com/Sa_sha/article/details/143645693</guid><author>Sa_sha</author><pubDate>Sat, 09 Nov 2024 18:41:32 +0800</pubDate><description><![CDATA[MPM和FEM一样都是Galerkin方法，MPM因为没有element，所以也属于Element-free Galerkin（EFG）MPM中的粒子对应FEM中的高斯积分点（quadrature points），而不是FEM中的元素elements。因而随着粒子可以到处跑，MPM可以模拟出大形变之类的奇异现象。和FEM一样，MPM方程是通过week formulation，即由Galerkin理论推导而来。]]></description><category></category></item><item><title><![CDATA[Lecture2 拉格朗日视角（1）]]></title><link>https://blog.youkuaiyun.com/Sa_sha/article/details/143642262</link><guid>https://blog.youkuaiyun.com/Sa_sha/article/details/143642262</guid><author>Sa_sha</author><pubDate>Sat, 09 Nov 2024 14:47:49 +0800</pubDate><description><![CDATA[基于Lattice Boltzmannn Method的流体模拟器实现卡门窝街 Karman Vortex Street：穿过物体的尾部有一连串交替分布的漩涡.（一个顺时针、一个逆时针）（流体力学中的重要现象）eg：水流过桥墩、风吹过烟囱、风吹过岛屿。]]></description><category></category></item><item><title><![CDATA[【GAMES201】Lecture1]]></title><link>https://blog.youkuaiyun.com/Sa_sha/article/details/142927863</link><guid>https://blog.youkuaiyun.com/Sa_sha/article/details/142927863</guid><author>Sa_sha</author><pubDate>Mon, 14 Oct 2024 21:40:01 +0800</pubDate><description><![CDATA[计算机软件对物理系统进行近似模拟物理系统：刚体、软体、流体“在计算机里模拟世界”]]></description><category></category></item><item><title><![CDATA[0 安装TaiChi]]></title><link>https://blog.youkuaiyun.com/Sa_sha/article/details/142876666</link><guid>https://blog.youkuaiyun.com/Sa_sha/article/details/142876666</guid><author>Sa_sha</author><pubDate>Sat, 12 Oct 2024 14:55:10 +0800</pubDate><description><![CDATA[运行案例：fractal.py。查看当前有哪些虚拟环境。]]></description><category></category></item><item><title><![CDATA[推荐算法G-2]]></title><link>https://blog.youkuaiyun.com/Sa_sha/article/details/130676501</link><guid>https://blog.youkuaiyun.com/Sa_sha/article/details/130676501</guid><author>Sa_sha</author><pubDate>Mon, 15 May 2023 07:42:14 +0800</pubDate><description><![CDATA[推荐算法]]></description><category></category></item><item><title><![CDATA[推荐算法G-1]]></title><link>https://blog.youkuaiyun.com/Sa_sha/article/details/130676499</link><guid>https://blog.youkuaiyun.com/Sa_sha/article/details/130676499</guid><author>Sa_sha</author><pubDate>Mon, 15 May 2023 07:39:58 +0800</pubDate><description><![CDATA[推荐算法]]></description><category></category></item><item><title><![CDATA[@insert ＜foreach＞批量插入数据]]></title><link>https://blog.youkuaiyun.com/Sa_sha/article/details/129035557</link><guid>https://blog.youkuaiyun.com/Sa_sha/article/details/129035557</guid><author>Sa_sha</author><pubDate>Tue, 14 Feb 2023 23:51:31 +0800</pubDate><description><![CDATA[Mybatis批量增加]]></description><category></category></item></channel></rss>