Issue:

On some PC, if you open the drawing with 3D objects in shade mode, you may find it is not displayed well, but on other PCs, it is good, why and how to solve it?


Solution:

In the 2023 official or previous version, you can set the system variable Zwuseogllowver as 1, then restart ZWCAD to try.


Since 2023 SP1, we have continued to optimize the 3D module, so the way to solve this issue is different, please try the following steps to troubleshoot it.

  1. Download the DLL file according to your ZWCAD bit version from below link, and copy to the installation directory, rename it as openglmesa.dll
    https://drive.google.com/drive/folders/1HkowvBgrATrgXKSc4yTnR-irc-5qf6e6?usp=sharing
  2. Set the environment variable as below shown
    MESA_GL_VERSION_OVERRIDE 4.1
    MESA_GLSL_VERSION_OVERRIDE  4.0
  3. Set the system variable ZW3DRENDERENGINE in ZWCAD as 1, and then restart ZWCAD


If you are still using previous versions than 2023 SP2, please install SP2 or later version to check. This display issue has been solved in 2023 sp2.