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Author Topic: glGenVertexArrays on the Mac  (Read 70 times)

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SpacedCowboy

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glGenVertexArrays on the Mac
« on: September 12, 2020, 12:53:02 am »
Not sure if this is an SFML thing or not, but on the Mac I needed to alter <SFML/OpenGL.hpp> to read as


#elif defined(SFML_SYSTEM_MACOS)

    #include <OpenGL/gl3.h>
 


... note the 'gl3.h' part, not the original 'gl.h'. Without this, Xcode won't find glGenVertexArrays() it gives instead:

Use of undeclared identifier 'glGenVertexArrays'; did you mean 'glGenVertexArraysAPPLE'?
 


This is using the SFML install from homebrew (2.5.1)


[edit: never mind. I hadn't realized that GLEW was pretty much essential for the extensions etc., and GLEW wants to include <OpenGL/gl.h>, and it's not a good idea to include both...

So, once GLEW is included and init'd, the call to glGenVertexArrays works fine.

I tried to delete this post, but I can't, hence the edit]
« Last Edit: September 12, 2020, 03:17:46 am by SpacedCowboy »

eXpl0it3r

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Re: glGenVertexArrays on the Mac
« Reply #1 on: September 16, 2020, 08:04:16 am »
SFML only exposes the OpenGL symbols that it uses itself.
GLEW is a relatively outdated way to get OpenGL symbols and it's probably better to use something like Glad.
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