SetColor not applied at all in release, and sometimes in debug

[klepto2]

This is a wierd one (at least it looks like a weird one) i have a simple scene with a terrain and a sphere.

the sphere is set to a red color.

In release: The result is always a white sphere but whith a correct looking terrain.

In debug: sometimes the same result as in release, but sometimes the sphere gets its color (and can be changed at runtime) but then the terrain is pure black as long as the sphere is in view.

 

#include "UltraEngine.h"
#include "ComponentSystem.h"
//#include "Steamworks/Steamworks.h"

using namespace UltraEngine;

int main(int argc, const char* argv[])
{

#ifdef STEAM_API_H
    if (not Steamworks::Initialize())
    {
        RuntimeError("Steamworks failed to initialize.");
        return 1;
    }
#endif

    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 * displays[0]->scale, 720 * displays[0]->scale, displays[0], WINDOW_CENTER | WINDOW_TITLEBAR);

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

    //Create a world
    auto world = CreateWorld();

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


    //Create light
    auto light = CreateDirectionalLight(world);
    light->SetRotation(45, 35, 0);
    light->SetColor(2);
    world->RecordStats(true);


    auto main_instance = CreateTerrain(world, 512, 512);

    auto sphere = CreateSphere(world, 2.0, 32);
    sphere->SetColor(1.0, 0.0, 0.0);

    //Main loop
    while (window->Closed() == false and window->KeyDown(KEY_ESCAPE) == false)
    {
        if(window->KeyHit(KEY_F1))
            sphere->SetColor(1.0, 0.0, 0.0);

        if (window->KeyHit(KEY_F2))
            sphere->SetColor(0.0, 1.0, 0.0);


        world->Update();
        world->Render(framebuffer);

#ifdef STEAM_API_H
        Steamworks::Update();
#endif
    }

#ifdef STEAM_API_H
    Steamworks::Shutdown();
#endif

    return 0;
}

Above is release (everytime) /debug(not everytime)  ( color can't  be changed with F1/F2)

the same with debug build, sometimes the color works. (then the color can be changed with F1/F2)

[Josh]

This is a strange one. Has this every happened without the terrain present?

[Josh]

At this point I suspect a nasty memory overwrite in the terrain system. I am seeing behavior that does not otherwise make sense...

[Josh]

I found the cause.

In the visibility list, meshes are grouped by pipeline settings. This is all the different rendering settings, plus the shader in use.

The pipeline settings has a < operator for sorting. This is how the grouping is done.

I added a setting in the shader family to force bindless textures off, but did not add any sorting for this in the < operator in the pipeline settings class.

As a result, your sphere was probably getting rendered using the terrain shader.

Once I added the needed fix the problem went away.