Light remove in real time causes a Crash

[Dreikblack]

#include "UltraEngine.h"

using namespace UltraEngine;

int main(int argc, const char* argv[]) {
    auto displays = GetDisplays();
    auto window = CreateWindow("Ultra Engine", 0, 0, 1280, 720, displays[0], WINDOW_CENTER | WINDOW_TITLEBAR);
    auto framebuffer = CreateFramebuffer(window);
    auto world = CreateWorld();

    auto camera = CreateCamera(world);
    camera->SetClearColor(0.125);
    camera->SetFov(70);
    camera->Move(0, 2, -8);

    auto ground = CreateBox(world, 20, 1, 20);
    ground->SetPosition(0, -0.5, 0);
    ground->SetColor(0, 1, 0);

    auto light = CreatePointLight(world);

    //Main loop
    while (window->Closed() == false and window->KeyHit(KEY_ESCAPE) == false) {
        world->Update();
        world->Render(framebuffer);
        if (window->KeyHit(KEY_SPACE)) {
            light = nullptr;//crash
        }
    }
    return 0;
}

 

[Josh]

No problems here. I just made some small changes to make the light easier to see:
 

#include "UltraEngine.h"

using namespace UltraEngine;

int main(int argc, const char* argv[]) {
    auto displays = GetDisplays();
    auto window = CreateWindow("Ultra Engine", 0, 0, 1280, 720, displays[0], WINDOW_CENTER | WINDOW_TITLEBAR);
    auto framebuffer = CreateFramebuffer(window);
    auto world = CreateWorld();
    world->SetAmbientLight(0);

    auto camera = CreateCamera(world);
    camera->SetClearColor(0.125);
    camera->SetFov(70);
    camera->Move(0, 2, -8);

    auto ground = CreateBox(world, 20, 1, 20);
    ground->SetPosition(0, -0.5, 0);
    ground->SetColor(0, 1, 0);

    auto light = CreatePointLight(world);
    light->SetPosition(0, 2, 0);
    light->SetRange(0.1, 20);

    //Main loop
    while (window->Closed() == false and window->KeyHit(KEY_ESCAPE) == false) {
        world->Update();
        world->Render(framebuffer);
        if (window->KeyHit(KEY_SPACE)) {
            light = nullptr;//crash
        }
    }
    return 0;
}

 

[Josh]

The location of the call stack indicates the crash is happening in the Nvidia driver. Maybe the shadow map is being used after deletion. Let me swap out GPUs and see what my Nvidia card does.

[Josh]

Okay, my Nvidia card does the same thing. Did this behavior start recently? It could be related to the use of bindless textures for shadow maps.

[Josh]

If I get rid of the call to glDeleteTextures() the problem goes away, so this seems very likely...

[Josh]

 

[Josh]

Update is available now that fixes this.