Ok later I modified the source from the base code but with a black window now :
#include "UltraEngine.h"
#include "ComponentSystem.h"
using namespace UltraEngine;
int main(int argc, const char* argv[])
{
RegisterComponents();
auto cl = ParseCommandLine(argc, argv);
//Load FreeImage plugin (optional)
auto fiplugin = LoadPlugin("Plugins/FITextureLoader");
//Get the displays
auto displays = GetDisplays();
//Create a window
auto window = CreateWindow("Ultra Engine", 0, 0, 1280, 720, displays[0], WINDOW_CENTER | WINDOW_TITLEBAR);
//Create a framebuffer
auto framebuffer = CreateFramebuffer(window);
//Create a world
auto world = CreateWorld();
//Create a camera
auto camera = CreateCamera(world);
camera->SetClearColor(0.125);
camera->SetFov(70);
camera->Move(0, 0, -10);
//Create a light
auto light = CreatePointLight(world);
light->SetPosition(0, 10, 0);
light->SetColor(2);
//Create ground
auto ground = CreateBox(world, 20, 1, 20);
ground->SetPosition(0, -0.5, 0);
ground->SetColor(0, 1, 0);
/* //Load the map
WString mapname = "Maps/my_cube.ultra";
if (cl["map"].is_string()) mapname = std::string(cl["map"]);
auto scene = LoadMap(world, mapname);*/
//Main loop
while (window->Closed() == false and window->KeyDown(KEY_ESCAPE) == false)
{
world->Update();
world->Render(framebuffer);
}
return 0;
}