Like wise a game could easily do something stupid like check if the OpenGL major revision number is equal to (and not greater than or equal to) 2 and report back that OpenGL is missing from the system even though you have version 3 or 4 present which is fully backwards compatible. Posted J(edited) OpenGL Extension Viewer is reliable software which displays the vendor name, the version implemented, the renderer name, and the extensions of the current OpenGL 3D accelerator. The reason this happens is because modern OSes on modern computers have access to so much memory that the memory check run by the game suffers an overflow bug resulting in the game thinking that there is extremely little memory available so it forces the lowest quality assets to save memory. Although the game works, it looks like rubbish because it defaults everything to the lowest quality fidelity. Even if they explicitly state you do not have OpenGL installed, that can be because the OpenGL version you have installed is so modern that the test routines cannot cope with checking it and so they incorrectly report it is missing due to a bug rather than it actually being missing.Īn example of a game which has problems with modern OS is Railroad Tycoon 3. It is possible that the games you want to play are not compatible with modern Windows operating systems for one reason or another. Old games often were badly programmed or used hacky optimizations to improve performance. That said just because your computer fully supports OpenGL does not mean the game is compatible with it.
#Windows 7 opengl extensions viewer drivers
If you have installed graphic drivers for a modern GPU it should be 4.x or higher. This will always be at least 1.1, as all recent Windows OS default to that. Click to expand.Installing a driver compatible with your GPU will give you much faster and more advanced implementations of OpenGL.Īdditionally the section OpenGL Viewers lists third party tools one can run to check what API version of OpenGL your computer is exposing to applications.
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