Dagon

The goal of this project is to create a modern, easy to use, extensible 3D game engine for D language. Dagon is based on OpenGL 4.0 core profile. It works on Windows and Linux.

The engine is still under development and lacks many important features. It is currently not recommended to use Dagon in production due to API instability. Follow the development on Trello to see the priority tasks.

Dagon uses modern graphics techniques and so requires a fairly powerful graphics card to run. Turing-based NVIDIA cards are recommended (although ray tracing support is not required). The engine is only desktop, support for mobile and web platforms is not planned.

If you like Dagon, support its development on Patreon or Liberapay. You can also make a one-time donation via NOWPayments. I appreciate any support. Thanks in advance!

Screenshots

Features

Static and animated meshes, glTF, OBJ and IQM formats support
Textures in PNG, JPG, DDS, HDR, TGA, BMP, GIF, PSD formats
Deferred pipeline for opaque materials, forward pipeline for transparent materials and materials with custom shaders
Physically based rendering (PBR)
HDR rendering with Reinhard, Hable/Uncharted, Unreal, ACES and Filmic tonemapping operators
HDRI environment maps. Preconvolved DDS cubemaps
Directional lights with cascaded shadow mapping and volumetric scattering
Spherical and tube area lights, spot lights
Normal/parallax mapping, parallax occlusion mapping
Deferred decals with normal mapping and PBR material properties
Dynamic skydome with sun and day/night cycle
Particle system with force fields. Blended particles, soft particles, shaded particles with normal map support, particle shadows
Terrain rendering. Procedural terrain using OpenSimplex noise or any custom height field
Water rendering
Post-processing (FXAA, SSAO, DoF, lens distortion, motion blur, glow, color grading)
UTF-8 text rendering using TTF fonts via Freetype
GUI and 2D graphics extension based on Nuklear. 2D canvas framework that renders vector shapes
GUI extension based on Dear ImGui
Keyboard, mouse and joystick input. Input manager with abstract bindings and file-based configuration
Unicode text input
Ownership memory model
Entity-component model
Built-in camera logics for easy navigation: freeview and first person views
Box container support for assets
Physics using Newton Dynamics.

Planned in future:

Screen-space reflections.

Getting Started

The recommended way to start using Dagon is creating a game template with dub init. Create an empty directory for the project, cd to it and run the following:

dub init --type=dagon
dub build

Do not delete data/__internal folder! It is used to store engine's internal data such as shaders and textures.

Runtime Dependencies

SDL 2.0.14
Freetype 2.8.1 (optional)
Newton Dynamics 3.14 (optional)
Nuklear (optional)
ImGui (optional)

Runtime dependencies are automatically deployed on Windows. On other platforms, you will have to install them manually.

Nuklear should be compiled as a dynamic library:

Install CMake
Go to extensions/nuklear/thirdparty/bindbc-nuklear-0.4.3/c/build
Run cmake ..
Under Linux, run make and sudo make install. libnuklear.so will be installed to /usr/local/lib
Under Windows, open nuklear.vcxproj in Visual Studio and build ALL_BUILD project. Look for nuklear.dll in the Release directory.

Documentation

See tutorials and corresponding examples.

License

Copyright (c) 2016-2022 Timur Gafarov, Rafał Ziemniewski, Mateusz Muszyński, dayllenger, Konstantin Menshikov, Björn Roberg, Isaac S., ijet. Distributed under the Boost Software License, Version 1.0 (see accompanying file COPYING or at http://www.boost.org/LICENSE_1_0.txt).

Made with Dagon

Electronvolt - work-in-progress first person puzzle based on Dagon
dagon-sandbox - a test application that demonstrates some of Dagon's features
Dagoban - a Sokoban clone
dagon-shooter - a shooter game

gecko0307/dagon

gecko0307

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