3DEngine 3.0.98

3D Engine

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Documentation
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Overview

The 3D Engine is currently in an early stage of development and is not yet equipped with the essential features required for a production-ready game engine. However, a clear and forward-looking development roadmap has been established, with active work being done to implement advanced systems such as virtualized geometry and radiance cascades for fully dynamic global illumination. As development progresses, I plan to foster a community starting next year, with the aim of building a C# game engine that integrates seamlessly with Unity workflows. With your support, we can create a powerful and user-friendly engine, complete with an editor, that meets the demands of modern game development.

Key Technologies

Windows App SDK

• Use the WinAppSDK to create beautiful, modern apps for Windows 11.

Vortice.Windows

• Vortice.Windows provides bindings for key Windows libraries including:
  • DXGI, WIC, DirectWrite, Direct2D, Direct3D9, Direct3D11, Direct3D12, XInput, XAudio2, X3DAudio, DirectInput, DirectStorage, DirectML, UIAnimation, and DirectSound.

Entity Component System (ECS)

• ECS is a design pattern for high-performance and flexible game development. It emphasizes separation of data from behavior and supports the "composition over inheritance" principle, improving performance and code reusability.

Universal Scene Description (OpenUSD / USD.NET)

• OpenUSD is a framework for interchange of 3D computer graphics data. The framework focuses on collaboration, non-destructive editing, and enabling multiple views and opinions about graphics data.

Sample Projects

Voxel Sandbox

A 3D Engine sample project demonstrating the capabilities of the 3D Engine. Voxel Sandbox implements the following features:

• Chunk Generation: Procedurally generates voxel-based chunks for an expansive world.
• Noise Sampling: Utilizes noise algorithms to create realistic terrain variations.
• Mesh Generation: Dynamically generates meshes based on voxel data for efficient rendering.
• Character Controller: Implements a responsive character controller for player movement and interaction.
• Optimized Shader: Features custom shaders optimized for performance and and targeted for voxels and low memory usage.

All components are written in C#, showcasing how to leverage the 3D Engine's functionalities to build a fully-featured application.

NuGet Package

3DEngine NuGet Package:

Install the package via NuGet Package Manager for integration into your project.

dotnet new console -n Project
cd Project
dotnet add package 3DEngine
dotnet add package Costura.Fody
./Project.csproj

Setup project:

<Project Sdk="Microsoft.NET.Sdk">
    <PropertyGroup>
        <OutputType>WinExe</OutputType>
        <TargetFramework>net8.0-windows10.0.22621.0</TargetFramework>
        <ImplicitUsings>enable</ImplicitUsings>
        <SatelliteResourceLanguages>en</SatelliteResourceLanguages>
        <PlatformTarget>x64</PlatformTarget>
        <PublishAot>true</PublishAot>
    </PropertyGroup>

    <ItemGroup>
      <None Remove="FodyWeavers.xml" />
    </ItemGroup>

    <ItemGroup>
        <PackageReference Include="3DEngine" Version="3.0.98" />
        <PackageReference Include="Costura.Fody" Version="5.7.0">
          <PrivateAssets>all</PrivateAssets>
        </PackageReference>
    </ItemGroup>

    <ItemGroup>
        <Content Update="$(NuGetPackageRoot)\3dengine\3.0.98\contentFiles\any\net8.0-windows10.0.22621\Assets\Resources\**\*">
            <CopyToOutputDirectory>PreserveNewest</CopyToOutputDirectory>
        </Content>
    </ItemGroup>

    <ItemGroup>
      <None Update="Assets\Generators\FileNamesEnumGenerator.tt">
        <Generator>TextTemplatingFileGenerator</Generator>
        <LastGenOutput>FileNamesEnumGenerator.cs</LastGenOutput>
      </None>
    </ItemGroup>
    
    <ItemGroup>
      <Service Include="{508349b6-6b84-4df5-91f0-309beebad82d}" />
    </ItemGroup>
    
    <ItemGroup>
      <Compile Update="Assets\Generators\FileNamesEnumGenerator.cs">
        <DesignTime>True</DesignTime>
        <AutoGen>True</AutoGen>
        <DependentUpon>FileNamesEnumGenerator.tt</DependentUpon>
      </Compile>
    </ItemGroup>
</Project>

Ensure "PreserveNewest" is set for files in the Assets folder in Visual Studio. Replace the Path to the NuGet Package 3DEngine\3.0.98

Setup program:

class Program
{
    [STAThread]
    private static void Main() =>
        new Engine.Program().Run(
            config: Engine.Config.GetDefault(
              windowCommand: Engine.WindowCommand.Show,
              presentInterval: Engine.PresentInterval.Immediate,
              multiSample: Engine.MultiSample.x4,
              resolutionScale: 1,
              title: "3D Engine",
              width: 2560, height: 1440,
              renderGUI: true, defaultBoot: true),
            initialization: () => 
              Engine.Kernel.Instance.SystemManager.MainEntityManager.CreateEntity().AddComponent<GameManager>(),
            frame: () => { });
}

Example script:

using System;
using System.Collections;
using System.Numerics;

using Engine;
using Engine.Buffer;
using Engine.Components;
using Engine.DataStructures;
using Engine.ECS;
using Engine.Editor;
using Engine.Framework;
using Engine.Graphics;
using Engine.GUI;
using Engine.Helper;
using Engine.Runtime;
using Engine.Utilities;

public class Example : Component
{
    [ToolTip("This is a ToolTip")]
    [Show]
    private string _visibleString = "This field is private";
    [Hide]
    public string HiddenString = "This field is public";
    [ShowOnly]
    public string ShowOnlyString = "This string is not editable";
    public int Int;
    public float Float;
    public Vector2 Vector2;
    public Vector3 Vector3;
    public Vector4 Vector4;
    [Slider(1, 100)]
    public float Slider;
    public bool Bool;
    [If("Bool", "True")]
    [ShowOnly]
    public string IfField = "This field is only visible if the bool is true";
    [IfNot("Bool", "True")]
    [ShowOnly]
    public string IfNotField = "This field is only visible if the bool is not true";
    [Color]
    public Vector4 Color;
    public Entity? _Entity;
    [Space]
    [Header("Header")]
    public event Action? Event;

    // This is the base function of OnRegister.
    public override void OnRegister() =>
        ScriptSystem.Register(this);
      
    public override void OnAwake() { }
    public override void OnStart() { }
    public override void OnUpdate() { }
    public override void OnLateUpdate() { }
    public override void OnFixedUpdate() { }
    public override void OnRender() { }
    public override void OnGUI() { }
    public override void OnDestroy() { }
}

Example usage:

Engine.Loader.ModelLoader.LoadFile(Engine.ModelFiles.Model);
Engine.Loader.ModelLoader.LoadFile(Engine.Utilities.AssetPaths.MESHES + "Model.obj");

Engine.Loader.ImageLoader.LoadFile(Engine.TextureFiles.TextureAtlas);
Engine.Loader.ImageLoader.LoadFile(Engine.Utilities.AssetPaths.TEXTURES + "Texture.png");

Engine.Kernel.Instance.Context.CreateShader(Engine.Utilities.AssetPaths.SHADERS + "Shader");
Engine.Kernel.Instance.Context.CreateComputeShader(Engine.Utilities.AssetPaths.COMPUTESHADERS + "ComputeShader");

Entity.AddComponent<Example>();

Entity.Manager.CreateEntity(name: "Controller").AddComponent<PlayerController>().Initialize(this);
Entity.Manager.CreateEntity(name: "Sky").AddComponent<DefaultSky>().Initialize();

var mesh = Entity.Manager.CreateEntity().AddComponent<Mesh>();

mesh.SetMeshData(ModelFiles.Model);
mesh.SetMeshData(Assets.Meshes["Model.obj"]);
mesh.SetMeshData(vertices, indices, positions, new InputLayoutHelper().AddPosition3D().AddUV());

mesh.SetRootSignature();
mesh.SetRootSignature(new RootSignatureHelper().AddConstantBufferView(2).AddShaderResourceViewTable());

mesh.SetMaterialTextures(TextureFiles.Texture);
mesh.SetMaterialTextures(textureEntries: [new("Texture.png", 0)]);

mesh.SetMaterialPipeline(ShaderFiles.Shader);
mesh.SetMaterialPipeline("Shader");

Engine.Utilities.Output.Log(Entity.Transform.Position);

if (Input.GetKey(Key.Escape, InputState.Down))
{
    PAUSED = !PAUSED;

    if (PAUSED)
        Input.SetMouseLockState(MouseLockState.Unlocked);
    else
        Input.SetMouseLockState(MouseLockState.LockedInvisible, 0.5, 0.5);
}

if (!PAUSED)
    Input.SetCursorIcon(SystemCursor.IDC_CROSS);

Solution Structure

The 3D Engine repository includes:

• 3DEngine (Package)
• Editor
• Engine

You can build the 3DEngine (Package) for both the Editor and Engine as a MSIX Application or the Engine as a portable Win32 Application.

Upcoming Features and Development Roadmap

• USD Integration
• Materials
• Render Textures
• Compute Shaders
• Post Processing
• Gizmos
• Asynchronous Reprojection
• Radiance Cascade (Alexander Sannikov)
• Virtualized Geometry (Nano Tech, Chris K)
• Networking
• Spatial Audio
• PhysX 5
• Export Build to the Xbox Platform

Build Instructions

To compile the 3D Engine, ensure you have Visual Studio 2022 with the following components:

• Windows App SDK
• Visual Studio Installer with:
  • .NET 8.0 SDK
  • Windows 11 SDK (10.0.22621.0)

Screenshots