UI have a offset on specific sreen

[Dreikblack]

Normal look

On my 2nd screen. Normal on 3rd one tho.

Also UI mouse input works like if no offset happen

 

#include "UltraEngine.h"

using namespace UltraEngine;

shared_ptr<Window> window;
shared_ptr<Framebuffer> framebuffer;
shared_ptr<World> world;
shared_ptr<Interface> ui;
shared_ptr<Camera> uiCamera;

shared_ptr<Widget> btn;
shared_ptr<Widget> btn2;

static bool EventCallback(const Event& e, shared_ptr<Object> extra)
{
    Print("Callback");
    return true;
}

void initGui()
{
    auto default_font = LoadFont("Fonts\\arial.ttf");
    ui = CreateInterface(world, default_font, framebuffer->GetSize());
    ui->SetRenderLayers(2);
    ui->root->SetColor(0.2f, 0.1f, 0.1f, 1.0f);
    uiCamera = CreateCamera(world, PROJECTION_ORTHOGRAPHIC);
    uiCamera->SetPosition((float)framebuffer->GetSize().x * 0.5f, (float)framebuffer->GetSize().y * 0.5f, 0);
    uiCamera->SetRenderLayers(2);
    uiCamera->SetClearMode(CLEAR_DEPTH);
    btn = CreateButton("Btn", 20, 20, 100, 100, ui->root);
    btn2 = CreateButton("Btn", 20, 150, 100, 100, ui->root);
}

int main(int argc, const char* argv[])
{
    //Get the displays
    auto displays = GetDisplays();

    //Create a window
    window = CreateWindow("Ultra Engine", 0, 0, 300, 300, displays[0], WINDOW_CENTER | WINDOW_TITLEBAR);

    //Create a world
    world = CreateWorld();

    //Create a framebuffer
    framebuffer = CreateFramebuffer(window);

    //Create a camera    
    auto camera = CreateCamera(world);
    camera->SetClearColor(0, 0, 0);

    initGui();

    ListenEvent(EVENT_DATA, NULL, EventCallback, btn);
    auto color = Vec4(0.5, 0, 1, 0.5f);
    btn->SetColor(color);

    //Main loop
    while (window->Closed() == false and window->KeyDown(KEY_ESCAPE) == false)
    {
        while (PeekEvent())
        {
            const Event ev = WaitEvent();
            ui->ProcessEvent(ev);
        }
        world->Update();
        world->Render(framebuffer);
    }
    return 0;
}

 

[Josh]

This requires two monitors to test? Do I just move the window from one to another?

[Josh]

The titlebars in your screenshots are a different size. It looks like the monitors are using a different display scale, which will give them a different framebuffer size.

[Dreikblack]

You are right. 2nd screen different display scale. Tried same - works as intended but impossible to use this screen because everything is too big then

[Josh]

Is that the solution then?

[Dreikblack]

idk, such things should not happens no matter what dpi user have on screens imho

[Josh]

It seems that your framebuffer size is changing if you move a window in between two screens with a different display scale, so you would need to reposition your 2D camera.

[Dreikblack]

Problem is a same with full GUI recreation when display changes including camera with code from another thread
So probably Ultra takes DPI from first created window?

 

[Josh]

I am mostly concerned at the prospect of the window client area changing size while rendering is happening on another thread. Will need to get out another monitor and test this some more...