davidyannick Posted November 27, 2021 Share Posted November 27, 2021 My purpose is to simulate a rotating box, but when I input this one in vellum the output sim only simulate the box no rotating ? (https://streamable.com/ummg2k) Any idea , thanks vellum_box.hiplc Quote Link to comment Share on other sites More sharing options...
vicvvsh Posted November 27, 2021 Share Posted November 27, 2021 Hi, you should compute velocity on a box geometry before put it to simulation. Use trail sop. Quote Link to comment Share on other sites More sharing options...
Ziyad Posted November 27, 2021 Share Posted November 27, 2021 Hi, This is because by default the vellum solver only takes the first frame of your input as the geometry to simulate. Luckily, you can add a vellum constraint called "Pin to Target" which allows you to match the vellum constraints to your animated input. I have attached the updated hip file and added some notes to explain how this constraint works vellum_box.hiplc 1 Quote Link to comment Share on other sites More sharing options...
davidyannick Posted November 27, 2021 Author Share Posted November 27, 2021 4 minutes ago, Ziyad said: Hi, This is because by default the vellum solver only takes the first frame of your input as the geometry to simulate. Luckily, you can add a vellum constraint called "Pin to Target" which allows you to match the vellum constraints to your animated input. I have attached the updated hip file and added some notes to explain how this constraint works vellum_box.hiplc Thank you so much, it works great !!!! Thanks Cheers Quote Link to comment Share on other sites More sharing options...
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