NavMesh does not work with brushes

[Dreikblack]

NavMesh can't be seen (with setDebuggint(true)) or used if you use brushes as a scene instead of models.

#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->SetFov(70);
    camera->SetClearColor(0.125);
    camera->SetPosition(0, 3, -6);
    camera->SetRotation(35, 0, 0);

    //Create light
    auto light = CreateBoxLight(world);
    light->SetRange(-20, 20);
    light->SetArea(20, 20);
    light->SetRotation(35, 35, 0);
    light->SetColor(3);

    //Create scene
    //auto ground = CreateBox(world, 10, 1, 10);
    //ground->SetPosition(0, -0.5, 0);
    //ground->SetColor(0, 1, 0);
    //auto wall = CreateBox(world, 1, 2, 4);

    float w = 10, h = 1, d = 10;
    auto brush = CreateBrush(world);
    //Add brush vertices
    brush->AddVertex(w * 0.5, 0, d * 0.5);
    brush->AddVertex(-w * 0.5, 0, d * 0.5);
    brush->AddVertex(-w * 0.5, 0, -d * 0.5);
    brush->AddVertex(w * 0.5, 0, -d * 0.5);
    brush->AddVertex(w * 0.5, -h, d * 0.5);
    brush->AddVertex(-w * 0.5, -h, d * 0.5);
    brush->AddVertex(-w * 0.5, -h, -d * 0.5);
    brush->AddVertex(w * 0.5, -h, -d * 0.5);

    //Add faces
    auto face = brush->AddFace();
    face->AddIndice(0);
    face->AddIndice(1);
    face->AddIndice(2);
    face->AddIndice(3);

    face = brush->AddFace();
    face->AddIndice(4);
    face->AddIndice(5);
    face->AddIndice(6);
    face->AddIndice(7);

    face = brush->AddFace();
    face->AddIndice(0);
    face->AddIndice(1);
    face->AddIndice(5);
    face->AddIndice(4);

    face = brush->AddFace();
    face->AddIndice(2);
    face->AddIndice(3);
    face->AddIndice(7);
    face->AddIndice(6);

    face = brush->AddFace();
    face->AddIndice(1);
    face->AddIndice(2);
    face->AddIndice(6);
    face->AddIndice(5);

    face = brush->AddFace();
    face->AddIndice(0);
    face->AddIndice(3);
    face->AddIndice(7);
    face->AddIndice(4);
    brush->Build();

    //Create navmesh
    auto navmesh = CreateNavMesh(world, 10, 5, 10, 4, 4);
    navmesh->SetDebugging(true);

    navmesh->Build();

    //Create player
    auto player = CreateCylinder(world, 0.4, 1.8);
    player->SetColor(0, 0, 1);
    auto agent = CreateNavAgent(navmesh);
    player->Attach(agent);

    //Main loop
    while (window->Closed() == false and window->KeyDown(KEY_ESCAPE) == false)
    {
        if (window->MouseHit(MOUSE_LEFT))
        {
            auto mousepos = window->GetMousePosition();
            auto rayinfo = camera->Pick(framebuffer, mousepos.x, mousepos.y);
            if (rayinfo.success)
            {
                agent->Navigate(rayinfo.position);
            }
        }

        world->Update();
        world->Render(framebuffer);
    }
    return 0;
}

[Josh]

Currently it seems to not work at all:

#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->SetFov(70);
    camera->SetClearColor(0.125);
    camera->SetPosition(0, 3, -6);
    camera->SetRotation(35, 0, 0);

    //Create light
    auto light = CreateBoxLight(world);
    light->SetRange(-20, 20);
    light->SetArea(20, 20);
    light->SetRotation(35, 35, 0);
    light->SetColor(3);

    //Create scene
    auto ground = CreateBox(world, 10, 1, 10);
    ground->SetPosition(0, -0.5, 0);
    ground->SetColor(0, 1, 0);
    auto wall = CreateBox(world, 1, 2, 4);
    wall->SetPosition(3, 0, 0);

    //Create navmesh
    auto navmesh = CreateNavMesh(world, 10, 5, 10, 4, 4);
    navmesh->SetDebugging(true);
    navmesh->Build();

    //Create player
    auto player = CreateCylinder(world, 0.4, 1.8);
    player->SetColor(0, 0, 1);
    auto agent = CreateNavAgent(navmesh);
    player->Attach(agent);

    //Main loop
    while (window->Closed() == false and window->KeyDown(KEY_ESCAPE) == false)
    {
        if (window->MouseHit(MOUSE_LEFT))
        {
            auto mousepos = window->GetMousePosition();
            auto rayinfo = camera->Pick(framebuffer, mousepos.x, mousepos.y);
            if (rayinfo.success)
            {
                agent->Navigate(rayinfo.position);
            }
        }
        world->Update();
        world->Render(framebuffer);
    }
    return 0;
}

 

[Josh]

Okay, this will be fixed in the next update.

It will be important to disable navigation on the player itself because mesh primitives are now being created with a collider added:

player->SetNavObstacle(false);

Scratch that, I added a check so if an entity is attached to an entity it will not contribute geometry into the navigation mesh.