Seems to be a bug with Output Precision, see:

viewtopicPhpbb.php?f=2032&t=17653

Tested with OpenSim 4.5_24_01_10

Best regards,
Heiko

Dear Maxence Lavaill,

This seems to be a bug. Set the Precision for Output to 8, then normal values should be calculated.

I would also activate "Solve for equilibrium for actuaytor states".

Best regards,
Heiko

Dear Antonio Nieto,

the motion data and ground reaction forces are included in the model as mot files (KIN...mot & GRF...mot).

Best regards,
Heiko Stark

You can also try to replace the geometries to smaller geometry files.

https://simtk.org/frs/?group_id=2032&pa ... 79&start=1

>>Low geometries

Best regards,
Heiko Stark

Dear Martina Pedroli, Sorry for my late reply. Unfortunately, I don't get a message from SimTK when there is a new post. My guess is that you are using version 4 of OpenSim. There is a known bug there with the new GUI engine. https://simtk.org/plugins/phpBB/viewtopicPhpbb.php?f=91&t=13078&p=37504&st...

Sorry for the very late reply. :roll: Please change the memory sizes in the following file:: C:\OpenSim 4.3\etc\OpenSim.conf -> default_options="--branding opensim -J-Xms512m -J-Xmx4096m -J-Dsun.java2d.ddoffscreen=false -J-Dsun.java2d.gdiblit=false -J-Dsun.java2d.noddraw=true -J-Duser.language=en -J...

Please note that the following problems may also occur:

viewtopicPhpbb.php?f=91&t=13078&p=37504&start=0&view=

Dear Ayman, The idea with Meshlab worked. I used the function "Filters/Remeshing.../Simplification: Clustering...". My experience is that OBJ files up to 6 MB work. But additionally an increase of the heap memory of Java is necessary for the whole model (see above). However, more error messages woul...

The comparison of the problematic parts between opensim3 (PNG file) and opensim4 (PNG file) shows an incorrect import from OpenSim or ThreeJS. A problem part is attached, available for one month:

https://upload.uni-jena.de/data/6035660 ... bdomen.zip

I can already answer one question myself. In the file: C:\OpenSim 4.2-2021-01-09-fc62aad\etc\OpenSim.conf you can change the -Xms and Xmx entry (OpenSim should better set it automatically according to the memory). default_options="--branding opensim -J-Xms512m -J-Xmx4096m -J-Dsun.java2d.ddoffscreen=...