OpenGL 3.1 glBindBuffer, glDeleteBuffer, etc. calls undeclared despite glext.h and gl.h inclusion

sreich

Trying to use a QQuickView to render my opengl scene underneath it...

My game started out as just glew + sdl + opengl, so i'm just using standard function calls here and trying to make qt work with it now, hopefully without glew and its junk.

The code is below, but I am getting undefineds and I don't understand them.

e.g.

/fluidrenderer.cpp:47:5: error: use of undeclared identifier 'glDeleteBuffers'; did you mean 'glSelectBuffer'? [Semantic Issue]
glDeleteBuffers(1, &m_eboWater);
^~~~~~~~~~~~~~~
glSelectBuffer

@
#include <QOpenGLFunctions>
#include <QOpenGLShaderProgram>
#include <QOpenGLFramebufferObject>

#include <GL/glext.h>

#include <map>
#include <string>
#include <vector>

class FluidRenderer : protected QOpenGLFunctions_3_1_CoreBackend@

For platform, I'm on archlinux and nvidia's blob. This stuff worked previously..those functions are defined in glext.h but aren't being found somehow.

ZapB

Hmmm odd. Can you try replacing the GL/glext.h with

@
#include <qopengl.h>
@

That should take care of including GL/gl.h and an equivalent of glext.h. What type of build of Qt are you using ES 2 or desktop GL?

sreich

Done. I'm just using archlinux-provided packages. I'd assume they were built for desktop, but I'm not sure how to check the flags it was built with.

I don't notice any changes in particular.

build errors:

http://paste.kde.org/p14be92fb/