{"topic":{"id":13687,"title":"实验 2.13 物体状态不更新","slug":"topic","categoryId":56,"createdAt":"2024-10-12 16:45:01.804413","bumpedAt":"2024-10-15 12:43:52.01061","views":175,"postsCount":2,"highestPostNumber":2,"likeCount":0,"closed":false,"pinned":false,"pinnedGlobally":false,"pinnedAt":null,"pinnedUntil":null,"isBanner":false,"excerpt":"如上，我在前向欧拉法的函数中返回了下一个状态，在 Object::update 函数中也更新了当前状态，但是每次输出的状态都不发生改变输出的这个状态是在原点的物体经过一个 time_step 应该处于的状态请问有可能是什么原因呢","deletedAt":null,"isAnonymous":false,"category":{"id":56,"name":"计算机图形学","slug":"cg","color":"92278F"},"author":{"id":4336,"username":"扑满","name":null,"avatarUrl":"/uploads/image/ce/55/ce55744a378ad0f375568f653c320f5a6cd532fe2e4ed4b76e928834c6dbc3f4.avif"},"tags":[]},"posts":[{"id":41570,"postNumber":1,"raw":"[grid mode=\"tile\"]\n![image|586x150](/uploads/image/f2/a7/f2a728292858d567b2c2fe1c7c46a5274582fe8d5b2d45e7f528d3662104734f.avif)\n\n![image|577x100](/uploads/image/cf/f2/cff2316fda0ca158aee6be81248a167433af1446afe5e37ad6a556bddda98dbf.avif)\n[/grid]\n如上，我在前向欧拉法的函数中返回了下一个状态，在 Object::update 函数中也更新了当前状态，但是每次输出的状态都不发生改变\n![image|690x354](/uploads/image/4b/49/4b49d9d91bd3cc2959bada6203b19420e02daeb1332a7829cc4cb59ed7387dc3.avif)\n输出的这个状态是在原点的物体经过一个 time_step 应该处于的状态\n请问有可能是什么原因呢","cooked":"

$\"image\"$

如上，我在前向欧拉法的函数中返回了下一个状态，在 Object::update 函数中也更新了当前状态，但是每次输出的状态都不发生改变
\n $\"image\"$
\n输出的这个状态是在原点的物体经过一个 time_step 应该处于的状态
\n请问有可能是什么原因呢

\n","createdAt":"2024-10-12 16:45:02.093088","updatedAt":"2024-10-12 16:46:03.485386","replyToPostNumber":null,"replyCount":0,"likeCount":0,"wordCount":95,"liked":false,"bookmarked":false,"polls":[],"reactions":[],"wiki":false,"version":1,"publicVersion":1,"deletedAt":null,"isAnonymous":false,"user":{"id":4336,"username":"扑满","name":null,"avatarUrl":"/uploads/image/ce/55/ce55744a378ad0f375568f653c320f5a6cd532fe2e4ed4b76e928834c6dbc3f4.avif","admin":false,"moderator":false,"signatureRaw":null,"signatureCooked":null}},{"id":41650,"postNumber":2,"raw":"可能是 Object::update 里没有更新 object 的 center 和 velocity\n或者是 Scene::simulation_update 里没有调用 update 函数更新物体状态","cooked":"

可能是 Object::update 里没有更新 object 的 center 和 velocity
\n或者是 Scene::simulation_update 里没有调用 update 函数更新物体状态

\n","createdAt":"2024-10-15 12:43:52.01061","updatedAt":"2024-10-15 12:43:52.01061","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":6091,"username":"qlnjszqd","name":"qlnjszqd","avatarUrl":null,"admin":false,"moderator":false,"signatureRaw":null,"signatureCooked":null}}],"hasMore":false,"lastReadPostNumber":1,"hasUrlPostNumber":false}