"Your graphics card does not support vertex shaders!" Game is older than GPU

[NimBlemations]

It appear that when I compile the game, it says that my GPU, which is 6 years younger than the game, doesn't support vertex shaders.

I have traced this error to GetCaps from LowLevelGraphicsSDL.cpp returning 0.

It is trying to check if _GLEE_AB_vertex_program is enabled, yet it isn't somehow, why is that? I surely don't know.

[HMart81]

Old comment I know but what GPU did you had or still have? A age of a GPU, as nothing to do with what it should or not should support. For example, Intel ARC GPU's don't support very old dx7/8 level software, despite being way newer than those. Thou in this day and age most GPU's should support OGL 2.0 pixel and vertex shaders (dx9 level) that afaik is what this engine supports?

Also this issue sometimes happens not because the GPU lacks the support, but because GPU makers change their older vendor exclusive OGL driver extension names, to the generic ARB naming and sometimes, for insufficient testing or no f's given to very old software, fail to account that older software was written in a way to require the older naming and this, obviously breaks that software.
But if this is the case, then we are lucky as we have the source code, so this is relatively easy to solve, just change that peace of engine code to look for the generic ARB extension name instead. That btw for some reason, sometimes has a very different name to the older vendor exclusive version, so some care is necessary to find the right ARB extension.