Dear Chrono users,

Recently, we have switched to using new version of the VSG libraries.

To build this new version of the Chrono::VSG module (in the `main` branch of 
the Chrono git repository, you will need to regenerate the required VSG 
libraries, for example by running the new versions of the buildVSG.*** scripts 
available under the `contrib/build-scripts` directory.
Notes:

  *   It is not required to update the Vulkan version.
  *   The new VSG libraries also require explicitly building glslang (as the 
one in Vulkan may not do). Although glslang's CMakeScript requests a minimum 
CMake version of 3.22.1, they in fact need a newer version. If you encounter 
errors while the buildVSG script configure glslang, consider updating the CMake 
version (this is an issue particularly for users of Ubuntu 22.04 which comes 
with an old CMake version).


The latest Chrono code also contains Python wrappers around Chrono::VSG, 
including for vehicle visualization and interactive control.
Because of all these changes, I strongly recommend that you do a clean rebuild 
of Chrono after you pull the latest code.

Please let me know if you encounter any issues.
--Radu

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