QuickGLSL
                                QuickGLSL is an application developed with the open source version of Qt and using C++17, that can be used to do some test with vertex and fragment shaders with OpenGL 4.6. 
                            
                        How to download and setup QuickGLSL
Open terminal and run command
                                            git clone https://github.com/Matrax/QuickGLSL.git
                                        
                                        git clone is used to create a copy or clone of QuickGLSL repositories.
                                        You pass git clone a repository URL. it supports a few different network protocols and corresponding URL formats.
Also you may download zip file with QuickGLSL https://github.com/Matrax/QuickGLSL/archive/master.zip
Or simply clone QuickGLSL with SSH
                                            [email protected]:Matrax/QuickGLSL.git                                    
                                    If you have some problems with QuickGLSL
You may open issue on QuickGLSL support forum (system) here: https://github.com/Matrax/QuickGLSL/issuesSimilar to QuickGLSL repositories
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