imgui_impl_opengl3: Comments. (#1987)
diff --git a/examples/imgui_impl_opengl3.cpp b/examples/imgui_impl_opengl3.cpp
index 90d0008..90358f6 100644
--- a/examples/imgui_impl_opengl3.cpp
+++ b/examples/imgui_impl_opengl3.cpp
@@ -61,7 +61,11 @@
#ifdef __EMSCRIPTEN__
#include <GLES3/gl3.h> // Use GL ES 3
#else
-#include <GL/gl3w.h> // This example is using gl3w to access OpenGL functions. You may use another OpenGL loader/header such as: glew, glext, glad, glLoadGen, etc.
+// About OpenGL function loaders:
+// Modern OpenGL requires individual functions to be loaded manually. Helper libraries are often used for this purpose.
+// Here we are using gl3w.h, which requires a call to gl3wInit().
+// You may use another any other loader/header of your choice, such as glew, glext, glad, glLoadGen, etc.
+#include <GL/gl3w.h>
//#include <glew.h>
//#include <glext.h>
//#include <glad/glad.h>
diff --git a/examples/imgui_impl_opengl3.h b/examples/imgui_impl_opengl3.h
index eb7ed0e..825a09c 100644
--- a/examples/imgui_impl_opengl3.h
+++ b/examples/imgui_impl_opengl3.h
@@ -9,6 +9,11 @@
// If you are new to dear imgui, read examples/README.txt and read the documentation at the top of imgui.cpp.
// https://github.com/ocornut/imgui
+// About OpenGL function loaders:
+// Modern OpenGL requires individual functions to be loaded manually. Helper libraries are often used for this purpose.
+// Here we are using gl3w.h, which requires a call to gl3wInit().
+// You may use another any other loader/header of your choice, such as glew, glext, glad, glLoadGen, etc.
+
// About GLSL version:
// The 'glsl_version' initialization parameter defaults to "#version 130" if NULL.
// Only override if your GL version doesn't handle this GLSL version (see table at the top of imgui_impl_opengl3.cpp). Keep NULL if unsure!
