SpiderPig

September 22, 2022

That's a good idea having a separate physics engine for 2D. Look forward to being able to test the kinematic joints.

September 21, 2022

Can't seem to get this to work... is there something I'm doing wrong?

#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, 800, 600, displays[0], WINDOW_CENTER | WINDOW_TITLEBAR);

    //Create a world
    auto world = CreateWorld();
    world->SetGravity(0, -9.8, 0);

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

    //Create a camera    
    auto camera = CreateCamera(world);
    camera->SetClearColor(0.125);
    camera->SetPosition(0, 5, -5);

    auto light = CreateLight(world, LIGHT_DIRECTIONAL);
    light->SetRotation(35, 35, 0);

    //Create the ground sprite
    auto ground = CreateBox(world, 100, 0.1, 100);


    auto player = CreateBox(world);
    player->SetPosition(0, 5, 0, true);
    player->SetMass(1.0f);

    //Create kinamatic joint
    auto joint = CreateKinematicJoint(Vec3(0, 5, 0), player);
    joint->SetMaxForce(100000);
    joint->SetMaxTorque(1000);

    //Main loop
    while (window->Closed() == false and window->KeyDown(KEY_ESCAPE) == false)
    {
        camera->UpdateControls(window);

        auto pos = player->GetPosition(true);
        if (window->KeyDown(KEY_UP)) {
            auto p = pos + Vec3(0, 1, 0);
            joint->SetTargetPosition(p.x, p.y, p.z);
        }

        if (window->KeyDown(KEY_DOWN)) {
            auto p = pos + Vec3(0, -1, 0);
            joint->SetTargetPosition(p.x, p.y, p.z);
        }

        if (window->KeyDown(KEY_LEFT)) {
            auto p = pos + Vec3(-1, 0, 0);
            joint->SetTargetPosition(p.x, p.y, p.z);
        }

        if (window->KeyDown(KEY_RIGHT)) {
            auto p = pos + Vec3(1, 0, 0);
            joint->SetTargetPosition(p.x, p.y, p.z);
        }

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

September 21, 2022

5 hours ago, Josh said:

Another update is uploaded. This fixes the kinematic joint error and the VkTexture imageview issue.

Example works now thanks. CreateKinematicJoint with a model or entity was returning nullptr because the entity didn't have a mass.

September 21, 2022

Wow!

September 21, 2022

Leads to the same same error -

September 21, 2022

On 9/18/2022 at 12:25 PM, Josh said:

To load the Leadwerks material, you might need need to first load the Leadwerks plugin. However, some of the material properties are up-in-the-air right now so it might not work still.

Just thought I'd mention that loading the LELegacy plugin didn't fix the issue. Same error loading this JSON one too;

{
	"material":
	{
		"color": [1,1,1,1],
		"emission": [0,0,0],
		"metallic": 1,
		"roughness": 1,
		"textures":
		[
			{
				"slot": "BASE",
				"file": "./Rock001_DIFF.dds",
				"filter": "LINEAR",
				"clamp": [false, false, false]
			},
			{
				"slot": "NORMAL",
				"file": "./Rock001_NORM.dds",
				"scale": 1
			},
			{
				"slot": "BRDF",
				"file": "Materials/BRDF/default.dds"
			}
		]
	}
}

September 21, 2022

On 9/20/2022 at 1:47 AM, Josh said:

I'm thinking about adding a feature to mark a volume as "indoors", meaning any pixels in that volume won't be affected by the skybox in the PBR reflection. If you had a house on stilts and added a 7-sided brush, it would create a volume inside the building that went all the way up into the rafters. The inside of the house would be dark, the outside would be bright, directional lights would still come through the door and windows, and there would be a soft shadowed area underneath the house. It could include a padding parameter to control how sharp the transition is.

I think this is a good idea. I think the ray tracing is great and looks superb but I can't see my self using it in a large procedurally generated world. Just because it needs that extra processing power, and I'm greedy and want it to do other things

I'm taking a look at the physics stuff now and want to setup my own player controller. The KinematicJoint example crashes a few moments in and in my game, passing a model to it makes it return nullptr. Is there still some work to do on physics?

September 20, 2022

Leadwerks is great and Ultra is even better. Would love to see some videos of your project, how long have you been working on it?

September 20, 2022

19 hours ago, klepto2 said:

Now that the error is gone this actually works:

Note: The cubemap has currently just a fixed camera and light position, but it is rendered in realtime to the PBR materials

Looks very nice, good job! Are you working on a day / night cycle?

September 19, 2022

I made a console for my game and after using it a few times it crashes. I've reproduced the error here. If you press 'P' to set the text and then press 'TAB' to show the widget, it will crash. But no crash if you press 'TAB' first and then 'P'...

#include "UltraEngine.h"


int main(int argc, const char* argv[])
{
    //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 world
    auto world = CreateWorld();

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

    //Create a camera
    auto camera = CreateCamera(world);
    camera->SetClearColor(0, 1, 1);
    camera->SetFOV(70);
    camera->SetPosition(0, 0, -2);

    auto uicam = CreateCamera(world, PROJECTION_ORTHOGRAPHIC);
    uicam->SetClearMode(CLEAR_DEPTH);
    uicam->SetRenderLayers(RENDERLAYER_1);
    uicam->SetPosition(framebuffer->size.x / 2, framebuffer->size.y / 2);
    auto ui = CreateInterface(world, LoadFont("Fonts/arial.ttf"), framebuffer->size);
    ui->SetRenderLayers(RENDERLAYER_1);
    ui->background->SetColor(0, 0, 0, 0);

    //Create a light
    auto light = CreateLight(world, LIGHT_DIRECTIONAL);
    light->SetRotation(35, 45, 0);

    //Create a box
    auto box = CreateBox(world);

    auto textbox = CreateTextArea(10, 10, 100, 25, ui->root);
    textbox->SetHidden(true);


    //Main loop
    while (window->Closed() == false and window->KeyDown(KEY_ESCAPE) == false)
    {
        while (PeekEvent()) {
            ui->ProcessEvent(WaitEvent());
        }

        if (window->KeyHit(KEY_P)) {
            textbox->SetText("Testing");
        }

        if (window->KeyHit(KEY_TAB)) {
            textbox->SetHidden(!textbox->GetHidden());
        }

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

September 19, 2022

Looks like its a crack showing what's on the other side. Made the floor orange and the camera's clear colour yellow - top half of sphere had yellow pixels and the bottom half had orange pixels popping.

September 19, 2022

Awesome! Noticed this in my project and managed to reproduce it in this program. I've only noticed this on a sphere so far (a red sphere to be precise), sometimes these white pixels pop up for a single frame. (It took a bit but I managed to take a picture of one! ) More noticeable if the camera moves but this sphere spins. It might be at the UV seam perhaps? Thought I'd mention it at least. Project is up to date.

#include "UltraEngine.h"
#include "ComponentSystem.h"


int main(int argc, const char* argv[])
{
    //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 world
    auto world = CreateWorld();

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

    //Create a camera
    auto camera = CreateCamera(world);
    camera->SetClearColor(0.125);
    camera->SetFOV(70);
    camera->SetPosition(0, 0, -3);

    auto uicam = CreateCamera(world, PROJECTION_ORTHOGRAPHIC);
    uicam->SetClearMode(CLEAR_DEPTH);
    uicam->SetRenderLayers(RENDERLAYER_1);
    uicam->SetPosition(framebuffer->size.x / 2, framebuffer->size.y / 2);
    auto ui = CreateInterface(world, LoadFont("Fonts/arial.ttf"), framebuffer->size);
    ui->SetRenderLayers(RENDERLAYER_1);
    ui->background->SetColor(0, 0, 0, 0);

    world->SetEnvironmentMap(LoadTexture("Materials\\Environment\\Storm\\diffuse.dds"), ENVIRONMENTMAP_DIFFUSE);
    world->SetEnvironmentMap(LoadTexture("Materials\\Environment\\Storm\\specular.dds"), ENVIRONMENTMAP_SPECULAR);

    //Create a light
    auto light = CreateLight(world, LIGHT_DIRECTIONAL);
    light->SetRotation(35, 45, 0);

    //Create a box
    auto box = CreateSphere(world);
    box->SetColor(1.0f, 0.0f, 0.0f);

    auto floor = CreateBox(world, 10.0f, 0.1f, 10.0f);
    floor->SetPosition(0.0f, -1.0f, 0.0f);

    //Entity component system
    auto actor = CreateActor(box);
    auto component = actor->AddComponent<Mover>();
    component->rotation.y = 45;

    //Main loop
    while (window->Closed() == false and window->KeyDown(KEY_ESCAPE) == false)
    {

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

September 18, 2022

Small issue with a text field, the text changes colour when pressing the 2nd letter.

#include "UltraEngine.h"
#include "ComponentSystem.h"


int main(int argc, const char* argv[])
{
    //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 world
    auto world = CreateWorld();

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

    //Create a camera
    auto camera = CreateCamera(world);
    camera->SetClearColor(0.125);
    camera->SetFOV(70);
    camera->SetPosition(0, 0, -3);

    auto uicam = CreateCamera(world, PROJECTION_ORTHOGRAPHIC);
    uicam->SetClearMode(CLEAR_DEPTH);
    uicam->SetRenderLayers(RENDERLAYER_1);
    uicam->SetPosition(framebuffer->size.x / 2, framebuffer->size.y / 2);
    auto ui = CreateInterface(world, LoadFont("Fonts/arial.ttf"), framebuffer->size);
    ui->SetRenderLayers(RENDERLAYER_1);
    ui->background->SetColor(0, 0, 0, 0);

    auto text_Box = CreateTextField(0, 0, 200, 50, ui->root);

    //Create a light
    auto light = CreateLight(world, LIGHT_DIRECTIONAL);
    light->SetRotation(35, 45, 0);

    //Create a box
    auto box = CreateBox(world);

    //Entity component system
    auto actor = CreateActor(box);
    auto component = actor->AddComponent<Mover>();
    component->rotation.y = 45;

    //Main loop
    while (window->Closed() == false and window->KeyDown(KEY_ESCAPE) == false)
    {
        while (PeekEvent())
        {
            ui->ProcessEvent(WaitEvent());
        }

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

September 18, 2022

7 minutes ago, Josh said:

What are you trying to do?

Just setup some basic nice lighting. Everything seems too dark. Isn't there some environment stuff I have to set up?

September 18, 2022

How should we set up the lighting? The objects below have no materials set they just have random colours. All I have is a directional light.

September 18, 2022

4 minutes ago, Josh said:
You need both of these lines of code:
    uicam->SetClearMode(CLEAR_DEPTH);
    ui->background->SetColor(0, 0, 0, 0);

Ah CLEAR_DEPTH not CLEAR_COLOR. That worked. Thanks.

September 18, 2022

7 minutes ago, Josh said:

Okay, the background panel is just covering the whole screen, so this will fix it:
ui->background->SetColor(0, 0, 0, 0);

That made it black but there doesn't seem to be any transparency.

September 18, 2022

20 minutes ago, Josh said:

Call uicam->SetClearMode(CLEAR_COLOR) so it shows the previously rendered color underneath.

Once at setup or per frame? I tried both and it made no difference.

21 minutes ago, Josh said:

This happens because culling is performed asynchronously, and visibility sets are reused to draw several frames. If it only happens in debug mode it's not a problem. Otherwise there is a camera frustum prediction feature I can toggle on and off that I am still toying with.

It's exactly the same in release too. It doesn't vanish too early at the edge of the frustum which I could understand in debug, it can vanish in the middle of the screen...

September 18, 2022

I've noticed that objects still pop in an out as you move the camera sometimes. This has been something I've noticed since the Steam BETA.

Run this and hold space to move the box. Follow the box by moving the mouse and the box will disappear sometimes.

#include "UltraEngine.h"

using namespace UltraEngine;

int main(int argc, const char* argv[])
{
    auto displays = GetDisplays();
    auto window = CreateWindow("Ultra Engine", 0, 0, 800, 600, displays[0], WINDOW_CENTER | WINDOW_TITLEBAR);
    auto world = CreateWorld();
    auto framebuffer = CreateFramebuffer(window);

    auto camera = CreateCamera(world);
    camera->SetClearColor(0.125);
    camera->SetRotation(45, 0, 0);
    camera->Move(0, 0, -10);
    camera->SetFOV(70);

    auto box = CreateBox(world);

    auto mousepos = Vec3();
    float lookspeed = 0.1f;
    float looksmoothing = 0.5f;

    auto _displaySize = window->GetSize();
    float cx = Round((float)_displaySize.x / 2.0f);
    float cy = Round((float)_displaySize.y / 2.0f);
    window->SetMousePosition(cx, cy);

    while (window->Closed() == false and window->KeyDown(KEY_ESCAPE) == false)
    {
        if (window->KeyDown(KEY_SPACE)) {
            box->Move(0.05, 0, 0);
        }

        float dx = 0.0f, dy = 0.0f;
        _displaySize = window->GetSize();
        cx = Round((float)_displaySize.x / 2.0f);
        cy = Round((float)_displaySize.y / 2.0f);
        auto mpos = Vec3(window->GetMousePosition().x, window->GetMousePosition().y, window->GetMousePosition().z);
        window->SetMousePosition(cx, cy);
        mpos = mpos * looksmoothing + mousepos * (1 - looksmoothing);
        dx = (mpos.x - cx) * lookspeed;
        dy = (mpos.y - cy) * lookspeed;

        auto camrot = camera->GetRotation();
        camrot.x += dy;
        camrot.y += dx;
        camera->SetRotation(camrot);
        mousepos = mpos;

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

September 18, 2022

I like that idea a lot. When I implemented it in my project though I had no 3D objects showing up. I ran this code in a fresh project and the box was not visible. I think it should be in view in the centre of the screen...

#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, 800, 600, displays[0], WINDOW_CENTER | WINDOW_TITLEBAR);

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

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

    //Create a camera
    auto camera = CreateCamera(world);
    camera->SetClearColor(0.125);
    camera->SetRotation(45, 0, 0);
    camera->Move(0, 0, -10);
    camera->SetFOV(70);

    auto uicam = CreateCamera(world, PROJECTION_ORTHOGRAPHIC);
    uicam->SetRenderLayers(RENDERLAYER_1);
    uicam->SetPosition(framebuffer->size.x / 2, framebuffer->size.y / 2);
    auto ui = CreateInterface(world, LoadFont("Fonts/arial.ttf"), framebuffer->size);
    ui->SetRenderLayers(RENDERLAYER_1);

    auto sz = ui->root->ClientSize();
    auto textarea = CreateTextArea(10, 10, sz.x - 20, 100, ui->root, TEXTAREA_WORDWRAP);

    WString s;

    for (int n = 0; n < 300; ++n)
    {
        s += String(n) + "\n";
    }

    textarea->SetLayout(1, 1, 1, 1);

    //ui->SetScale(displays[0]->scale);
    textarea->SetText(s);

    auto box = CreateBox(world);

    //Main loop
    while (window->Closed() == false and window->KeyDown(KEY_ESCAPE) == false)
    {
        while (PeekEvent())
        {
            ui->ProcessEvent(WaitEvent());
        }

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

September 18, 2022

Now that Canvas isn't a thing, how do we get Widgets to display over a camera? Used to be camera->AddCanvas() I think...

September 18, 2022

Can Ultra still be compiled for 32bit as well as 64bit? In the old Steam BETA you had options for Debug 64f and Release 64f.

September 17, 2022

Found a few more things;

1. CreateTextField() still compiles with an Interface as an argument but it leads to an unresolved external symbol error. Setting it to use the root of the interface works.

2. CreateTextArea() is the same. Still compiles but won't link.

3. CreateInterface() takes an unknown float as the 3rd parameter and links with unresolved symbol. I don't need it - just think it's there by accident...

4. frambuffer is nullptr when using the flag WINDOW_RESIZEABLE in the CreateWindow()

auto window = CreateWindow("MyApp", 0, 0, 1440, 900, displays[0], WINDOW_CENTER | WINDOW_TITLEBAR | WINDOW_RESIZABLE);
auto framebuffer = CreateFramebuffer(window);

5. Getting this error when loading a material in a fresh project. (Files attached)

auto mat = LoadMaterial("Materials\\Developer\\bluegrid.mat");

Developer.zip

September 17, 2022

10 hours ago, Josh said:

3. Mouseposition Z is the wheel position.

I have needed to set the scroll wheel to zero before. Can't remember why, but I remember it be useful.

September 17, 2022

8 hours ago, Josh said:
Regarding large mesh building, the reason it would be slow with very big meshes is because the STL vector is being frequently resized as it grows, so it keeps allocating and copying a larger and larger block of memory. I'm not sure what should be done, maybe some new methods like this:
Mesh::AddVertices(const std::vector<Vertex>& verts)
Mesh::AddIndices(const std::vector<uint32_t>& indices)

That's what I was thinking. Commands like that would be perfect!

And removing verts too? Maybe SetVertices() as well, I have needed to clear them before.

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