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Examples: OpenGL2: Added (yet another) comment/instruction against using opengl2 with modern OpenGL. (#2297)

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omar
2019-01-20 18:10:52 +01:00
parent 2c38b32db1
commit 259f3c78a2
2 changed files with 15 additions and 2 deletions
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8
examples/example_glfw_opengl2/main.cpp
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@ -129,8 +129,14 @@ int main(int, char**)
glViewport(0, 0, display_w, display_h);
glClearColor(clear_color.x, clear_color.y, clear_color.z, clear_color.w);
glClear(GL_COLOR_BUFFER_BIT);
//glUseProgram(0); // You may want this if using this code in an OpenGL 3+ context where shaders may be bound, but prefer using the GL3+ code.
// If you are using this code with non-legacy OpenGL header/contexts (which you should not, prefer using imgui_impl_opengl3.cpp!!),
// you may need to backup/reset/restore current shader using the commented lines below.
//GLint last_program;
//glGetIntegerv(GL_CURRENT_PROGRAM, &last_program);
//glUseProgram(0);
ImGui_ImplOpenGL2_RenderDrawData(ImGui::GetDrawData());
//glUseProgram(last_program);
glfwMakeContextCurrent(window);
glfwSwapBuffers(window);