{"topic":{"id":6233,"title":"如何调用前向欧拉法的求解函数并更新物体状态","slug":"topic","categoryId":56,"createdAt":"2023-10-06 06:06:36.258106","bumpedAt":"2023-10-08 12:51:58.700069","views":392,"postsCount":4,"highestPostNumber":4,"likeCount":0,"closed":true,"pinned":false,"pinnedGlobally":false,"pinnedAt":null,"pinnedUntil":null,"isBanner":false,"excerpt":"这个输出的结果一直不变，我到底应该返回哪个 previous 还是 new-state 呀","deletedAt":null,"isAnonymous":false,"category":{"id":56,"name":"计算机图形学","slug":"cg","color":"92278F"},"author":{"id":1510,"username":"lzx_djb","name":"asasa","avatarUrl":null},"tags":[]},"posts":[{"id":12708,"postNumber":1,"raw":"![Screenshot 2023-10-06 at 14.04.24|690x381](/uploads/image/fc/5a/fc5a73200685b05bd598bee2adecac3829a9979df317e4dc8410a8178db4e5ce.avif) 这个输出的结果一直不变，我到底应该返回哪个 previous 还是 new-state 呀\n![Screenshot 2023-10-06 at 14.06.08|283x500](/uploads/image/f7/c1/f7c11f6a0bb16f708870ded5e0a367a17908a9ee3acba6dfcc8dc1989883a246.avif)","cooked":"

$\"Screenshot$ 这个输出的结果一直不变，我到底应该返回哪个 previous 还是 new-state 呀
\n $\"Screenshot$

\n","createdAt":"2023-10-06 06:06:36.348294","updatedAt":"2023-10-08 12:47:36.940435","replyToPostNumber":null,"replyCount":0,"likeCount":0,"wordCount":34,"liked":false,"bookmarked":false,"polls":[],"reactions":[],"wiki":false,"version":3,"publicVersion":3,"deletedAt":null,"isAnonymous":false,"user":{"id":1510,"username":"lzx_djb","name":"asasa","avatarUrl":null,"admin":false,"moderator":false,"signatureRaw":null,"signatureCooked":null}},{"id":12714,"postNumber":2,"raw":"应该返回下一个时间步的状态，每次更新时将其赋值给物体的运动状态。","cooked":"

应该返回下一个时间步的状态，每次更新时将其赋值给物体的运动状态。

\n","createdAt":"2023-10-06 06:56:30.113892","updatedAt":"2023-10-06 06:56:30.113892","replyToPostNumber":null,"replyCount":0,"likeCount":0,"wordCount":32,"liked":false,"bookmarked":false,"polls":[],"reactions":[],"wiki":false,"version":1,"publicVersion":1,"deletedAt":null,"isAnonymous":false,"user":{"id":1381,"username":"greyishsong","name":"greyishsong","avatarUrl":"/uploads/image/da/bc/dabc731b0311f59850625bbeb55ed969fcfac0430c5ef0f68441e5466b7aa496.avif","admin":false,"moderator":true,"signatureRaw":null,"signatureCooked":null}},{"id":12719,"postNumber":3,"raw":"能在说详细一点嘛，我比较蠢","cooked":"

能在说详细一点嘛，我比较蠢

\n","createdAt":"2023-10-06 08:30:12.728418","updatedAt":"2023-10-06 08:30:12.728418","replyToPostNumber":null,"replyCount":0,"likeCount":0,"wordCount":13,"liked":false,"bookmarked":false,"polls":[],"reactions":[],"wiki":false,"version":1,"publicVersion":1,"deletedAt":null,"isAnonymous":false,"user":{"id":1510,"username":"lzx_djb","name":"asasa","avatarUrl":null,"admin":false,"moderator":false,"signatureRaw":null,"signatureCooked":null}},{"id":13093,"postNumber":4,"raw":"> 现在模拟过程中老出现 segment fault\n\n这个描述过于模糊了，几乎给不出任何信息。你可以先尝试在 `Scene::simulation_update` 和 `Object::update` 这两个函数中详细地记录日志，并根据崩溃前最后的日志检查到底是在哪一步发生了段错误。\n\n有了比较详细的日志信息，可以参考 [使用指南](https://xjtu.app/t/topic/5959/2) 将其贴上来，我们再一起解决问题。\n\n另外请 @palpitate 关注一下这个问题，并在这位同学给出日志等信息后试着帮助他解决。","cooked":"

\n
现在模拟过程中老出现 segment fault
\n

这个描述过于模糊了，几乎给不出任何信息。你可以先尝试在 Scene::simulation_update 和 Object::update 这两个函数中详细地记录日志，并根据崩溃前最后的日志检查到底是在哪一步发生了段错误。

有了比较详细的日志信息，可以参考使用指南将其贴上来，我们再一起解决问题。

另外请 @palpitate 关注一下这个问题，并在这位同学给出日志等信息后试着帮助他解决。

\n","createdAt":"2023-10-08 12:51:58.700069","updatedAt":"2023-10-08 12:51:58.700069","replyToPostNumber":null,"replyCount":0,"likeCount":0,"wordCount":157,"liked":false,"bookmarked":false,"polls":[],"reactions":[],"wiki":false,"version":1,"publicVersion":1,"deletedAt":null,"isAnonymous":false,"user":{"id":1381,"username":"greyishsong","name":"greyishsong","avatarUrl":"/uploads/image/da/bc/dabc731b0311f59850625bbeb55ed969fcfac0430c5ef0f68441e5466b7aa496.avif","admin":false,"moderator":true,"signatureRaw":null,"signatureCooked":null}}],"hasMore":false,"lastReadPostNumber":3,"hasUrlPostNumber":true}