About window + small fixes

- Fix rendering breaking when approaching pole singularities
- Fill world center gap if cursor3D isn't at (0,0,0)

Author: NicusorN5

3DRadSpace/3DRadSpace_Editor_WindowsDX11/Editor/RenderWindow.cpp

@@ -48,7 +48,15 @@ void RenderWindow::Initialize()
 		dLines.push_back(VertexPositionColor{Vector3(-halfNumLines, 0, float(i)), Colors::Gray});
 	}
 
+	auto centerLines = std::initializer_list<VertexPositionColor>{
+		VertexPositionColor{ Vector3(0,0,halfNumLines), Colors::Gray },
+		VertexPositionColor{ Vector3(0,0,-halfNumLines), Colors::Gray },
+		VertexPositionColor{ Vector3(halfNumLines, 0, 0), Colors::Gray },
+		VertexPositionColor{ Vector3(-halfNumLines, 0, 0), Colors::Gray }
+	};
+
 	axis = std::make_unique<Primitives::LineList>(Device.get(), axisLines);
+	grid_center = std::make_unique<Primitives::LineList>(Device.get(), centerLines);
 	grid = std::make_unique<Primitives::LineList>(Device.get(), dLines);
 
 	Camera.InternalInitialize(this);
@@ -162,10 +170,11 @@ void RenderWindow::_controlCamera()
 		auto mouseDelta = (Vector2)(screenCenter - mousePos) * float(Update_dt) / 100.0f;
 		cameraPos -= mouseDelta * Settings::CameraSensitivity.Value;
 
+		constexpr float poleLimit = 0.01f;
 		cameraPos.Y = std::clamp<float>(
 			cameraPos.Y,
-			-std::numbers::pi_v<float> / 2.f + std::numeric_limits<float>::epsilon(),
-			std::numbers::pi_v<float> / 2.f - std::numeric_limits<float>::epsilon()
+			-std::numbers::pi_v<float> / 2.f + poleLimit,
+			std::numbers::pi_v<float> / 2.f - poleLimit
 		);
 
 		Window->SetMouseVisibility(false);
@@ -397,6 +406,13 @@ void RenderWindow::Draw3D()
 		grid->View = View;
 		grid->Projection = Projection;
 		grid->Draw3D();
+
+		if (!Math::WithinEpsilon(cursor3D.X, 0) && !Math::WithinEpsilon(cursor3D.Y, 0) && !Math::WithinEpsilon(cursor3D.Z, 0))
+		{
+			grid_center->View = View;
+			grid_center->Projection = Projection;
+			grid_center->Draw3D();
+		}
 	}
 
 	auto drawAllObjects = [this]()

3DRadSpace/3DRadSpace_Editor_WindowsDX11/Editor/RenderWindow.hpp

@@ -32,6 +32,7 @@ class RenderWindow : public Engine3DRadSpace::Game
 	Camera Camera;
 	std::unique_ptr<LineList> axis;
 	std::unique_ptr<LineList> grid;
+	std::unique_ptr<LineList> grid_center;
 
 	float zoom = 5.0f;
 	float timer = 0;

3DRadSpace/3DRadSpace_Editor_WindowsDX11/Editor/SkinmeshPreviewer.cpp

@@ -47,10 +47,11 @@ void SkinmeshPreviewer::Update()
 		Vector2 mouseDelta = static_cast<Vector2>(pd) * float(Draw_dt);
 		_camCoords -= mouseDelta * Settings::CameraSensitivity.Value;
 
+		constexpr float poleLimit = 0.01f;
 		_camCoords.Y = std::clamp<float>(
 			_camCoords.Y,
-			-std::numbers::pi_v<float> / 2.0f + std::numeric_limits<float>::epsilon(),
-			std::numbers::pi_v<float> / 2.0f - std::numeric_limits<float>::epsilon()
+			-std::numbers::pi_v<float> / 2.f + poleLimit,
+			std::numbers::pi_v<float> / 2.f - poleLimit
 		);
 
 		Window->SetMouseVisibility(false);

3DRadSpace/3DRadSpace_Editor_WindowsDX11/Frontend/Windows/AboutWindow.cpp

@@ -0,0 +1,103 @@
+#include "AboutWindow.hpp"
+#include "../../resource.h"
+
+INT_PTR WINAPI AboutWindow_DlgProc(HWND hwnd, UINT msg, WPARAM wParam, LPARAM lParam)
+{
+	static AboutWindow* wndAbout = nullptr;
+
+	switch (msg)
+	{
+	case WM_INITDIALOG:
+	{
+		wndAbout = reinterpret_cast<AboutWindow*>(lParam);
+		wndAbout->window = hwnd;
+		wndAbout->_createControls();
+		return 1;
+	}
+	case WM_COMMAND:
+		switch (LOWORD(wParam))
+		{
+		case IDOK:
+			EndDialog(hwnd, IDOK);
+			return TRUE;
+		case IDCANCEL:
+			EndDialog(hwnd, IDCANCEL);
+			return TRUE;
+		default:
+			break;
+		}
+		if (HIWORD(wParam) == BN_CLICKED && reinterpret_cast<HWND>(lParam) == wndAbout->_okButton)
+		{
+			EndDialog(hwnd, IDOK);
+			return TRUE;
+		}
+		break;
+	default:
+		break;
+	}
+	return FALSE;
+}
+
+AboutWindow::AboutWindow(HWND owner, HINSTANCE hInstance) : Dialog(owner, hInstance, AboutWindow_DlgProc, "About 3DRadSpace", 260, 130)
+{
+}
+
+void AboutWindow::_createControls()
+{
+	_iconPictureBox = CreateWindowExA(
+		0,
+		"Static",
+		"",
+		WS_VISIBLE | WS_CHILD | SS_ICON,
+		10, 10, 200, 200,
+		window,
+		nullptr,
+		hInstance,
+		nullptr
+	);
+
+	HICON hIcon = (HICON)LoadImageA(
+		hInstance,
+		MAKEINTRESOURCEA(IDI_ICON1),
+		IMAGE_ICON,
+		200, 200,
+		LR_DEFAULTCOLOR
+	);
+	if (hIcon == nullptr)
+	{
+		MessageBoxA(window, "Failed to load the icon for the about window!", "Error", MB_ICONERROR);
+	}
+	else
+	{
+		SendMessageA(_iconPictureBox, STM_SETICON, reinterpret_cast<WPARAM>(hIcon), 0);
+	}
+
+	_label = CreateWindowExA(
+		0,
+		"Static",
+		"3DRadSpace Editor\nVersion 0.1.0Alpha\n\nhttps:\\3dradspace.github.io\n\n\n\nThis software is licensed under MIT.",
+		WS_VISIBLE | WS_CHILD | SS_CENTER,
+		220, 10, 200, 200,
+		window,
+		nullptr,
+		hInstance,
+		nullptr
+	);
+
+	_okButton = CreateWindowExA(
+		0,
+		"Button",
+		"OK",
+		WS_VISIBLE | WS_CHILD | BS_DEFPUSHBUTTON,
+		390, 220, 100, 30,
+		window,
+		reinterpret_cast<HMENU>(IDOK),
+		hInstance,
+		nullptr
+	);
+}
+
+void AboutWindow::ShowDialog()
+{
+	Dialog::ShowDialog(static_cast<void*>(this));
+}

3DRadSpace/3DRadSpace_Editor_WindowsDX11/Frontend/Windows/AboutWindow.hpp

@@ -0,0 +1,17 @@
+#pragma once
+#include "../Controls/Dialog.hpp"
+
+class AboutWindow : public Dialog
+{
+	HWND _label = nullptr;
+	HWND _iconPictureBox = nullptr;
+	HWND _okButton = nullptr;
+	
+	void _createControls();
+public:
+	AboutWindow(HWND owner, HINSTANCE hInstance);
+
+	void ShowDialog();
+
+	friend INT_PTR WINAPI AboutWindow_DlgProc(HWND hwnd, UINT msg, WPARAM wParam, LPARAM lParam);
+};