GetCollider()->IntersectsPoint() does not work correctly in release mode

[Dreikblack]

Debug mode has no such problem but TransformPoint in same code in release mode don't returns true when it should.

A model becomes yellow when it goes through a box in debug( i.e. TransformPoint() returns true).

#include "UltraEngine.h"
#include "Components/Mover.hpp"

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, 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(0.8);
    camera->Turn(35, 0, 0);
    camera->Move(0, 0, -2);
    camera->SetDebugPhysicsMode(true);

    //Create light
    auto light = CreateBoxLight(world);
    light->SetRange(-20, 20);
    light->SetArea(20, 20);
    light->SetRotation(35, 35, 0);

    auto unlitMaterial = CreateMaterial();
    auto unlitShader = LoadShaderFamily("Shaders/Unlit.json");
    unlitMaterial->SetShaderFamily(unlitShader);

    int width = 2, height = 1, length = 3;
    auto model = CreateModel(world);
    auto mesh = model->AddMesh();

    mesh->AddVertex(0, 0, 0); //S
    mesh->AddVertex(-width * 0.5, -height * 0.5, length);//NW
    mesh->AddVertex(width * 0.5, -height * 0.5, length);//NE

    mesh->AddPrimitive(2, 1, 0);//S , NW, NE

    mesh->AddVertex(-width * 0.5, height * 0.5, length);//NW h
    mesh->AddVertex(width * 0.5, height * 0.5, length);//NE h

    mesh->AddPrimitive(0, 3, 4);//S , NW h, NE h

    mesh->AddPrimitive(0, 1, 3);//left

    mesh->AddPrimitive(4, 3, 1); //"face"
    mesh->AddPrimitive(2, 4, 1); //"face"


    mesh->AddPrimitive(0, 4, 2); //"right"

    auto& mat = unlitMaterial;
    mat->SetTransparent(true);
    model->SetMaterial(mat);
    model->SetColor(0.5f, 0.8f, 0, 0.25f);
    model->SetPosition(0, 0, 0);

    auto collider = CreateConvexHullCollider(mesh);
    model->SetCollider(collider);

    Vec3 targetPos(2, 0, 0);
    auto box = CreateBox(world, 0.1f);
    box->SetPosition(targetPos);

    auto component = model->AddComponent<Mover>();
    component->rotationspeed.y = 45;
    //Main loop
    while (window->Closed() == false and window->KeyDown(KEY_ESCAPE) == false)
    {
        auto newTargetPos = TransformPoint(targetPos, Mat4(), model->GetMatrix());
        bool isInside = model->GetCollider()->IntersectsPoint(newTargetPos);
        if (isInside)
        {
            model->SetColor(1, 1, 0, 1);
        }
        else {
            model->SetColor(1, 0, 0, 1);
        }
        world->Update();
        world->Render(framebuffer);
    }
    return 0;
}

 

[Josh]

It appears to be working correctly in the current build on 1.0.3?

[Josh]

Sometimes it works in release and sometimes it does not. This is evidence that an unintialized boolean value might be somewhere in that routine's code....

[Josh]

I have simplified your example a bit:

#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, 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(0.8);
    camera->Turn(35, 0, 0);
    camera->Move(0, 0, -2);
    camera->SetDebugPhysicsMode(true);

    //Create light
    auto light = CreateBoxLight(world);
    light->SetRange(-20, 20);
    light->SetArea(20, 20);
    light->SetRotation(35, 35, 0);

    auto unlitMaterial = CreateMaterial();
    auto unlitShader = LoadShaderFamily("Shaders/Unlit.json");
    unlitMaterial->SetShaderFamily(unlitShader);

    int width = 2, height = 1, length = 3;
    auto model = CreateModel(world);
    auto mesh = model->AddMesh();

    mesh->AddVertex(0, 0, 0); //S
    mesh->AddVertex(-width * 0.5, -height * 0.5, length);//NW
    mesh->AddVertex(width * 0.5, -height * 0.5, length);//NE

    mesh->AddPrimitive(2, 1, 0);//S , NW, NE

    mesh->AddVertex(-width * 0.5, height * 0.5, length);//NW h
    mesh->AddVertex(width * 0.5, height * 0.5, length);//NE h

    mesh->AddPrimitive(0, 3, 4);//S , NW h, NE h

    mesh->AddPrimitive(0, 1, 3);//left

    mesh->AddPrimitive(4, 3, 1); //"face"
    mesh->AddPrimitive(2, 4, 1); //"face"


    mesh->AddPrimitive(0, 4, 2); //"right"

    auto& mat = unlitMaterial;
    mat->SetTransparent(true);
    model->SetMaterial(mat);
    model->SetColor(0.5f, 0.8f, 0, 0.25f);
    model->SetPosition(0, 0, 0);

    auto collider = CreateConvexHullCollider(mesh);
    model->SetCollider(collider);

    Vec3 targetPos(2, 0, 0);
    auto box = CreateBox(world, 0.1f);
    box->SetPosition(targetPos);

    //auto component = model->AddComponent<Mover>();
    //component->rotationspeed.y = 45;
    
    model->Turn(0, 90, 0);

    //Main loop
    while (window->Closed() == false and window->KeyDown(KEY_ESCAPE) == false)
    {
        auto newTargetPos = TransformPoint(targetPos, NULL, model);

        newTargetPos = Vec3(0, 0, 2);
         
        //auto newTargetPos = TransformPoint(targetPos, Mat4(), model->GetMatrix());
        bool isInside = model->GetCollider()->IntersectsPoint(newTargetPos);
        if (isInside)
        {
            model->SetColor(0, 1, 0, 1);
        }
        else {
            model->SetColor(1, 0, 0, 1);
        }
        world->Update();
        world->Render(framebuffer);
    }
    return 0;
}

 

[Josh]

I found the problem and fixed it for the next build.