simtk.org

Hello,

I am using OpenSim 4 and Opensim 4.1. I found some old models (Vasavada neck model or MASI moel) that are compatible with opensim 3.3. However, I am unable to open it in Opensim 4.0 or 4.1. What should I do?

How can I download OpenSim 3.3 now?

Hello,

On the downloads page, there's a link to "Previous Releases", when you expand it you'll see the downloads going back to version 1.0 so you can pick/download whatever version you need. Just keep in mind that some older versions were built/distributed long time ago so the software may not run on the latest hardware (OpenSim 3.3 is luckily still in active use).

it would be helpful if you send a link to the model in question to investigate why it doesn't open in version 4.0+

Hope this helps,
-Ayman