- Opensim-testers - SimTK Mailing Lists

OpenSim 4.6 Beta Testing
by Nick Bianco 23 Apr '26

23 Apr '26

Hello OpenSim testers, We are happy to announce the upcoming release of OpenSim 4.6, and we’re looking for your help with beta testing the software before a wider release. OpenSim 4.6 will include a brand new visualizer with improved visualization quality and media creation tools, several updates to the OpenSim API and Moco, and new Python packaging options. To test the new application: 1. Go to downloads page for the OpenSim project <https://simtk.org/frs/?group_id=91>. 2. Scroll down to the section titled “OpenSim Release Betas”. 3. Download the application installer for your platform (Windows or Mac), and install. 4. If installing on Mac, note that you will need to allow installation in the Privacy & Security settings (i.e., click “Open Anyway” under “Security” for the package when prompted). A detailed list of changes coming with OpenSim 4.6 can be found on the following Confluence page: What’s New in OpenSim 4.6? <https://opensimconfluence.atlassian.net/wiki/spaces/OpenSim/pages/127411814…>. The changes on this page include the addition of PyPI packages to support pip-installation of OpenSim, but they are not currently available for testing. However, these packages will be included in the wider OpenSim 4.6 release. We would greatly appreciate anyone willing to test the new features described above. For those willing to participate, please go to the following Google sheet to provide your name, platform information, and testing feedback: OpenSim 4.6 Beta Testing Tasks <https://docs.google.com/spreadsheets/d/1xBr-TGytDs7Sj8cH1yNabNWwUy2x08bP459…>. The sheet contains many predefined testing tasks, but feel free to test your own models, motions, and research workflows too. If you do perform any predefined testing tasks, please try to prioritize tests that others have not covered already. Looking forward to hearing your feedback! Cheers, The OpenSim Team

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Help Test the OpenSim 4.5 Beta Release
by Ayman Habib 14 Dec '23

14 Dec '23

We are excited to announce the beta release of OpenSim 4.5 and we would love to have your help in testing the new software! We would appreciate getting input by January 15. The new software includes improvements to the look and feel of the GUI, published Conda and Docker packages, additional Moco functionality, and the introduction of FunctionBasedPath for function-based muscle wrapping. We also now distribute a version of the Rajagopal model with the OpenSim resources folder included in the OpenSim application. A more detailed list of what’s new can be found here <https://simtk-confluence.stanford.edu:8443/pages/viewpage.action?pageId=130…> We are looking for testers, whether you have time to test one thing or ten. To get started, install the OpenSim 4.5 Beta <https://simtk.org/frs/?group_id=91> (scroll down to "OpenSim Beta Releases") and visit the shared testing doc <https://docs.google.com/spreadsheets/d/1sN5xTI3ikd4xLOJH34eaom7c7lQuSmr6kk-…> for instructions and a list of tasks to test. You can test out the bug fixes, try out the new features, or run through an example or two. Please don't hesitate to send any questions or feedback via email as well. Thanks in advance for your help! - The OpenSim Team

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Help Test the OpenSim 4.4. Beta Release
by Jen Hicks 15 Jun '22

15 Jun '22

We are excited to announce the beta release of OpenSim 4.4 and we would love to have your help in testing the new software! We would appreciate getting input by June 30. The OpenSim 4.4 beta has many improvements and bug fixes that we are excited to get into your hands. OpenSim 4.4 debuts Moco enhancements to define optimization goals, as well as Conda packaging for easy access to OpenSim functionality in Python. A more detailed list of what’s new can be found here <https://simtk-confluence.stanford.edu:8443/pages/viewpage.action?pageId=834…> . We are looking for testers, whether you have time to test one thing or ten. To get started, install the OpenSim 4.4 Beta <https://simtk.org/frs/?group_id=91> (scroll down to "OpenSim Beta Releases") and visit the shared testing doc <https://docs.google.com/spreadsheets/d/1PG4qHz6FvABBIF2XpACUqwZXXRg8KwfKSJx…> for instructions and a list of tasks to test. You can test out the bug fixes, try out the new features, or run through an example or two. Please don't hesitate to send any questions or feedback via email as well. Thanks in advance for your help! - The OpenSim Team -- *Jennifer Hicks, PhD* Deputy Director Wu Tsai Human Performance Alliance at Stanford <http://humanperformance.stanford.edu/> OpenSim Project <http://opensim.stanford.edu/> | Mobilize Center <http://mobilize.stanford.edu/> | Restore Center <http://restore.stanford.edu/> Stanford University | Contact & Bio <https://profiles.stanford.edu/jennifer-hicks>

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Help Test the OpenSim 4.2 Beta Release
by Jen Hicks 19 Jan '21

19 Jan '21

Dear OpenSim Beta Testers, We are excited to announce the beta release of OpenSim 4.2 and we would love to have your help in testing the new software! We would appreciate getting input by February 2. The OpenSim 4.2 beta has many improvements and bug fixes that we are excited to get into your hands. We are especially excited about this release because OpenSim 4.2 debuts GUI-based tools to use IMU data for inverse kinematics. A more detailed list of what’s new in OpenSim can be found here <https://simtk-confluence.stanford.edu/pages/viewpage.action?pageId=36439186> . We are looking for testers, whether you have time to test one thing or ten. To get started, install the OpenSim 4.2 Beta <https://simtk.org/frs/?group_id=91> (scroll down to "OpenSim Beta Releases") and visit the shared testing doc <https://docs.google.com/spreadsheets/d/1mZKnCKoTs0sZ-i5GIxRssg2nyr-HycTA9Jo…> for instructions and a list of tasks to test. You can test out the bug fixes, try out the new IMU features, or run through an example or two. It would also be very helpful to test the new IMU features with your own data. Please don't hesitate to send any questions or feedback via email as well. Thanks in advance for your help and happy new year! - The OpenSim Team -- *Jennifer Hicks, Ph.D.* Director of Data Science | Mobilize Center <http://mobilize.stanford.edu/> Associate Director | NCSRR <http://www.stanford.edu/group/opensim/about/index.html> R&D Manager | OpenSim <http://opensim.stanford.edu/> Stanford University 650-498-4403 | jenhicks(a)stanford.edu

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Help Test the OpenSim 4.1 Beta Release
by Jennifer Hicks 06 Jan '20

06 Jan '20

Hello OpenSim Testers, We are excited to announce the beta release of OpenSim 4.1 and we would love to have your help in testing the new software! We would appreciate getting input by January 21. The OpenSim 4.1 beta has many improvements and bug fixes that we are excited to get into your hands. We are especially excited about this release because OpenSim 4.1 debuts methods to use IMU data for inverse kinematics. A more detailed list of what’s new in OpenSim can be found here <https://simtk-confluence.stanford.edu/pages/viewpage.action?pageId=36439186> . We are looking for testers, whether you have time to test one thing or ten. To get started, install the OpenSim 4.1 Beta <https://simtk.org/frs/?group_id=91> (scroll down to "OpenSim Beta Releases") and visit the shared testing doc <https://docs.google.com/spreadsheets/d/1U8yoMh6CFIF-sXfDVW6pdOgftlFmhRp3kY1…> for instructions and a list of tasks to test. You can test out the bug fixes, try out the new IMU features, or run through an example or two. It would also be very helpful to test the new IMU features with your own data. Please don't hesitate to send any questions or feedback via email as well. Thanks in advance for your help and happy new year! - The OpenSim Team -- *Jennifer Hicks, Ph.D.* Director of Data Science | Mobilize Center <http://mobilize.stanford.edu> Associate Director | NCSRR <http://www.stanford.edu/group/opensim/about/index.html> R&D Manager | OpenSim <http://opensim.stanford.edu/> Stanford University 650-498-4403 | jenhicks(a)stanford.edu

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OpenSense Beta Testing
by James Dunne 12 Jun '19

12 Jun '19

Hello, OpenSim Beta Testers- We are excited for you to try a new software release, called OpenSense. OpenSense is designed to perform kinematic tracking using Inertial Measurement Units (IMUs). If you are able to install the software, run through an example, and offer us your feedback, it would be a great help to us. OpenSense is available as a set of command line tools and through scripting in Matlab and Python. Mac and Windows versions are available. We hope OpenSense will be helpful in your work. To download the software, run through the example, and give us your feedback, please see the instructions in the shared testing doc <https://docs.google.com/spreadsheets/d/1GMKghFjVoHL-gyGU79OKD47ejpmDgZ-j5na…>. If you have any questions or issues, you’re welcome to email us, as well. Please don't hesitate to send any questions or feedback via email as well. Thanks in advance for your help! The OpenSim Team -James

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OpenSim 4.0 Beta Testing
by Ayman Habib 22 Dec '17

22 Dec '17

OpenSim Beta Testers - We need your help testing the new release of OpenSim - version 4.0. Even testing just one or two tasks is a big help to us. The new release is a major upgrade. OpenSim 4.0 includes a new visualizer and support for Mac OS X. For Matlab, Python, and C++ users, the API upgrades include new methods to extract results from models/simulations and a new data interface that makes it easier to get data in and out of OpenSim. We created a google doc that lists a variety of testing tasks, including the new features to try out. Please review the instructions, register, choose some tasks by marking your name in the sheet, and report back on the doc. You can also try out the new release with your own research workflow and report any bugs on the "Bugs" sheet. Beta Testing Tasks <https://docs.google.com/spreadsheets/d/1KwSPxfK3TvWH2Nfh2pA04YNr9Tf7pex2JnF…> You can find the beta of 4.0 on the OpenSim downloads page. Scroll down to "OpenSim Release Betas". Grab the latest installers/distributions (121517), for either 64-bit Windows or Mac OS X, depending on which platform is on your machine. Software Download links: Win64: download <https://simtk.org/frs/download_confirm.php/file/5372/OpenSim-4.0.Beta_12151…> OS X: download <https://simtk.org/frs/download_confirm.php/file/5371/OpenSim-4.0.Beta_12151…> Please don't hesitate to send any questions or feedback via email as well. Thanks in advance for your help! The OpenSim Team ----------------------------------------- Install instructions: OS X: -------- - Double click the pkg file you downloaded (if you get security warning, ignore it and use ctrl-click to launch instead) - Follow the instructions on the installer screen. Windows (64bit only): ---------------------- - Unzip the zip file you downloaded - Launch by double click on the bin/opensim64.exe executable (create desktop shortcut if desired) - On first launch you will be prompted to copy the Models to a directory of your choice (a reasonable default Documents/OpenSim40 is provided, note that for future use)

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OpenSim 3.3 Beta Testing
by Jennifer Hicks 24 Jun '15

24 Jun '15

OpenSim Beta Testers - We need your help testing the next release of OpenSim - version 3.3. Even testing just one or two tasks is a big help to us. The new release has fixes and enhancements to Static Optimization and the Scale Tool, improvements to the Metabolic models in OpenSim, along with several other bug fixes and compatibility with Visual Studio 2013. We created a google doc that lists a variety of testing tasks, including the new features to try out. Please review the instructions, register, choose some tasks by marking your name in the sheet, and report back on the doc. You can also try out the new release with your own research workflow and report any bugs on the "Bugs" sheet. Beta Testing Tasks <https://docs.google.com/spreadsheets/d/1A6_ADDplnNe47PXYBBIg7IDolK7kF4E-p-U…> You can find the beta of 3.3 on the OpenSim downloads page. Scroll down to "OpenSim Release Betas". Grab the latest installers (rc3), for either 32-bit or 64-bit, depending on which Windows platform is on your machine. Software Download <https://simtk.org/project/xml/downloads.xml?group_id=91> Please don't hesitate to send any questions or feedback via email as well. Thanks in advance for your help! Jen and the OpenSim Team -- *Jennifer Hicks, Ph.D.* Director of Data Science | Mobilize Center <http://mobilize.stanford.edu> Associate Director | NCSRR <http://www.stanford.edu/group/opensim/about/index.html> R&D Manager | OpenSim <http://opensim.stanford.edu/> Stanford University 650-498-4403 | jenhicks(a)stanford.edu

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Controller for forward-progression of bipede model
by Joana Figueiredo 23 Feb '15

23 Feb '15

Hello, I noted that the musculoskeletal models of biped provided by OpenSim does not contain control models for forward-progression of walking. Some one know or can provide me control models to this task? The control strategy can be based on reflex control (as the proposed by Geyer) or anthropometrics data. In fact, I need with some urgency a biped model walking for my Master project to development some simulations. Thank you for your attention. Regards, Joana Figueiredo

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OpenSim 3.2 Beta Testing
by Jennifer Hicks 08 Jan '14

08 Jan '14

OpenSim Beta Testers - We need your help testing the next release of OpenSim - version 3.2. Even testing just one or two tasks is a big help to us. The new release has enhanced scripting functionality, enhancements to the graphical user interface, many new modeling components, new examples, and important bug fixes. We created a google doc that lists a variety of testing tasks, including the new features to try out. Please review the instructions, register, choose some tasks by marking your name in the sheet, and report back on the doc. You can also try out the new release with your own research workflow and report any bugs on the "Bugs" sheet. Beta Testing Tasks<https://docs.google.com/spreadsheet/ccc?key=0Ao9A_w-0xOYxdGVQNGR0eUZJUEg0QV…> You can find the beta of 3.2 on the OpenSim downloads page. Scroll down to "OpenSim Release Betas". Grab one of the latest installers (_u3), for either 32-bit or 64-bit, depending on which Windows platform is on your machine. Software Download <https://simtk.org/project/xml/downloads.xml?group_id=91> Please don't hesitate to send any questions or feedback via email as well. Thanks in advance for your help! Jen and the OpenSim Team -- *Jennifer Hicks, Ph.D.* Associate Director | NCSRR<http://www.stanford.edu/group/opensim/about/index.html> R&D Manager | OpenSim <http://opensim.stanford.edu/> Stanford University 650-498-4403 | jenhicks(a)stanford.edu

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