Open GL compilation error

[YonatanSimson]

In order to get the example from chapter 3 to compile one should replace

#include <gl/gl.h>
#include <gl/glu.h>

with:

#include <GL/gl.h>
#include <GL/glu.h>

[Maggie0616GitHub]

hello，I compiled chapter 3's codes in the environment of Linux. I used your method,but it didn't work.so,which system did you use? Windows?or Linux? And the author of this book said that we need install Opencv with opengl support. But,I failed.Help me!!! @YonatanSimson Thanks!

[ahmetozlu]

You should compile OpenCV source codes with OpenGL support and then use it. That's it! You can use CMake for compiling OpenCV with OpenGL support on Windows platform.

[ahmetozlu]

https://www.youtube.com/watch?v=caWl8nG6mLk

I can help @Maggie0616GitHub if you need.

[Maggie0616GitHub]

Thank you very much!! I succeed! @ahmetozlu

[orgicus]

I ran into many GL header related errors using Visusal Studio 2019.

The solution in my case was to simply: #include <windows.h> before GL.

HTH