A C++ library to render Dear-Imgui on 3D space and used on VR applications.
- Cmake > 3.15
- OpenGL
- Glew
- Windows 10 and 11
- Linux
- Mac-OS
- GCC
- Visual Studio.
- Clang 11
This library support Cmake. The source code contains im-gui v8.7 embedded in the project.
- Open cmake-gui and configure the project. You might need to link the references to Glew include folder and library paths.
- Generate the project
- (Optional) Open the project in visual studio to build and compile the library.
#include <GL/gl.h>
#include <gl/GLU.h>
#include "VRMenu.h"
#include "VRMenuHandler.h"
bool is_2d = false;
void menu_callback()
{
if (m_is2d)
{
ImGui::SetNextWindowSize(ImVec2(300, 300), ImGuiCond_Once);
ImGui::SetNextWindowPos(ImVec2(40, 40), ImGuiCond_Once);
}
//...do other stuff like ImGui::NewFrame();
if (ImGui::Begin("dummy window"))
{
ImGui::InputText("###exampleInputText", &_inputText);
ImGui::End();
}
}
int main(void)
{
GLFWwindow* window;
VRMenuHandler * menus = new VRMenuHandler(m_is2d);
glfwSetErrorCallback(error_callback);
if (!glfwInit())
exit(EXIT_FAILURE);
menus->addNewMenu(std::bind(&menu_callback, this), 1024, 1024, 1, 1);
glfwWindowHint(GLFW_CONTEXT_VERSION_MAJOR, 2);
glfwWindowHint(GLFW_CONTEXT_VERSION_MINOR, 0);
window = glfwCreateWindow(640, 480, "Simple example", NULL, NULL);
if (!window)
{
glfwTerminate();
exit(EXIT_FAILURE);
}
while (!glfwWindowShouldClose(window))
{
menus->drawMenu(window_w, window_h, framebuffer_w, framebuffer_h);
glfwSwapBuffers(window);
glfwPollEvents();
}
glfwDestroyWindow(window);
glfwTerminate();
exit(EXIT_SUCCESS);
}
For a more complete example on on how to use the keyboard/mouse input events with the GUI you have to enable the cmake option BUILD_WITH_EXAMPLE. It uses MinVR a renderer engine.