In 1.03 after a last update 3D camera renders a black screen when there is a UI camera

[Dreikblack]

Example:

#include "UltraEngine.h"

using namespace UltraEngine;


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

    //Create a window
    auto window = CreateWindow("Ultra Engine", 0, 0, 1920, 1080, 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(0.6);
    camera->SetFov(90);
    camera->SetRotation(54.736f, 45, 0);
    camera->SetPosition(0, 4, 0);

    auto sz = framebuffer->GetSize();

    // Load a font
    auto font = LoadFont("Fonts/arial.ttf");

    // Create user interface
    auto ui = CreateInterface(world, font, framebuffer->GetSize());
    ui->SetRenderLayers(2);
    ui->root->SetColor(0.0f, 0.0f, 0.0f, 0.0f);

    // Create ui camera
    auto 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);

    //Create light
    auto light = CreateBoxLight(world);
    light->SetRange(-100, 100);
    light->SetArea(100, 100);
    light->SetRotation(35, 35, 0);
    light->SetColor(2);

    //Main loop
    while (window->Closed() == false and window->KeyDown(KEY_ESCAPE) == false)
    {  
        world->Update();
        world->Render(framebuffer, false);
    }
    return 0;
}

 

[Dreikblack]

Probably it's just a background of GUI that full black now

[Josh]

It's the GUI background you are seeing. What was the behavior before? Did panels use alpha blending?

#include "UltraEngine.h"

using namespace UltraEngine;


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

    //Create a window
    auto window = CreateWindow("Ultra Engine", 0, 0, 1024, 768, 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(0,0,1);
    
    auto sz = framebuffer->GetSize();

    // Load a font
    auto font = LoadFont("Fonts/arial.ttf");

    // Create user interface
    auto ui = CreateInterface(world, font, framebuffer->GetSize());
    ui->SetRenderLayers(2);
    ui->root->SetColor(1,0,0,0);

    // Create ui camera
    auto uiCamera = CreateCamera(world, PROJECTION_ORTHOGRAPHIC);
    uiCamera->SetClearMode(CLEAR_DEPTH);
    uiCamera->SetRenderLayers(2);

    //Main loop
    while (window->Closed() == false and window->KeyDown(KEY_ESCAPE) == false)
    {
        world->Update();
        world->Render(framebuffer, false);
    }
    return 0;
}

 

[Dreikblack]

2 minutes ago, Josh said:

What was the behavior before? Did panels use alpha blending?

GUI background used to be transparent with:

ui->root->SetColor(0.0f, 0.0f, 0.0f, 0.0f);

 

[Josh]

I think so too.

The transparency example seems to work fine in the current build:
https://github.com/UltraEngine/Documentation/blob/master/CPP/Material_SetTransparent.md

Investigating....

[Josh]

The vertex alpha was being set to 1.0 in base_vert.glsl. It should work fine now.

[Dreikblack]

Does not work for me. I did update and shaders compiling.

[Josh]

Did you sync the project to get the new shader? You don't need to recompile shaders, although that won't hurt anything.

[Dreikblack]

I don't know if i can do sync manually in another way but there is no warn button to do it (just green check symbol)

[Josh]

try again, I think I did not upload earlier.

[Dreikblack]

After new update and syncing background is still black / not transparent

[Dreikblack]

Recompiling shaders helped though.