Fixing GLSL 4.50 Support Issues with Nomachine Ubuntu 16.04

If you're an Ubuntu user, specifically running version 16.04, and are encountering issues with compiling shaders using GLSL 4.50, you're not alone. This problem is a common occurrence when working with OpenGL on this platform. The error message 'GLSL 4.50 is not supported' can be frustrating, especially when all other attempts to resolve the issue have been unsuccessful.

To begin troubleshooting, let's take a look at the output of `sudo glxinfo | grep 'OpenGL'`, which provides valuable information about your system's OpenGL capabilities. In this case, the output shows that your system is using Mesa DRI Intel(R) HD Graphics 520 (Skylake GT2), and the OpenGL vendor string is from Intel Open Source Technology Center.

When trying to compile shaders, it's essential to ensure that your shader file is compatible with the version of GLSL supported by your system. However, even after adjusting the version in the shader file, you may still encounter the same error.

In this situation, the issue likely lies with the fact that Ubuntu 16.04 does not support GLSL 4.50 out of the box. Unfortunately, the default installation of OpenGL on this platform only supports up to GLSL 3.30. This limitation can cause compilation errors when using shaders written for higher versions.

To resolve this issue, you have a few options:

1. Downgrade your shader code: Modify your shader file to use features and syntax available in GLSL 3.30 or earlier. This may require rewriting certain parts of your shader code.

2. Upgrade to a later version of Ubuntu: If possible, consider upgrading to a newer version of Ubuntu that supports more recent versions of OpenGL and GLSL.

3. Use a third-party package manager: Utilize a package manager like PPA (Personal Package Archive) or Flatpak to install a version of OpenGL that supports higher GLSL versions.

By exploring these options, you should be able to resolve the issue and successfully compile your shaders using GLSL 4.50 on Nomachine Ubuntu 16.04.

Nomachine ubuntu 16.04