elvencache a33ca71bcf add denoise example (#2344)
/*
* Implement SVGF style denoising as bgfx example. Goal is to explore various
* options and parameters, not produce an optimized, efficient denoiser.
*
* Starts with deferred rendering scene with very basic lighting. Lighting is
* masked out with a noise pattern to provide something to denoise. There are
* two options for the noise pattern. One is a fixed 2x2 dither pattern to
* stand-in for lighting at quarter resolution. The other is the common
* shadertoy random pattern as a stand-in for some fancier lighting without
* enough samples per pixel, like ray tracing.
*
* First a temporal denoising filter is applied. The temporal filter is only
* using normals to reject previous samples. The SVGF paper also describes using
* depth comparison to reject samples but that is not implemented here.
*
* Followed by some number of spatial filters. These are implemented like in the
* SVGF paper. As an alternative to the 5x5 Edge-Avoiding A-Trous filter, can
* select a 3x3 filter instead. The 3x3 filter takes fewer samples and covers a
* smaller area, but takes less time to compute. From a loosely eyeballed
* comparison, N 5x5 passes looks similar to N+1 3x3 passes. The wider spatial
* filters take a fair chunk of time to compute. I wonder if it would be a good
* idea to interleave the input texture before computing, after the first pass
* which skips zero pixels.
*
* I have not implemetened the variance guided part.
*
* There's also an optional TXAA pass to be applied after. I am not happy with
* its implementation yet, so it defaults to off here.
*/

/*
* References:
* Spatiotemporal Variance-Guided Filtering: Real-Time Reconstruction for
*	Path-Traced Global Illumination. by Christoph Schied and more.
*	- SVGF denoising algorithm
*
* Streaming G-Buffer Compression for Multi-Sample Anti-Aliasing.
*	by E. Kerzner and M. Salvi.
*	- details about history comparison for temporal denoising filter
*
* Edge-Avoiding À-Trous Wavelet Transform for Fast Global Illumination
*	Filtering. by Holger Dammertz and more.
*	- details about a-trous algorithm for spatial denoising filter
*/
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bgfx - Cross-platform rendering library

Build Status Build status License Join the chat at https://discord.gg/9eMbv7J

What is it?

Cross-platform, graphics API agnostic, "Bring Your Own Engine/Framework" style rendering library.

Supported rendering backends:

  • Direct3D 9
  • Direct3D 11
  • Direct3D 12
  • GNM (only for licensed PS4 developers, search DevNet forums for source)
  • Metal
  • OpenGL 2.1
  • OpenGL 3.1+
  • OpenGL ES 2
  • OpenGL ES 3.1
  • Vulkan
  • WebGL 1.0
  • WebGL 2.0
  • WebGPU/Dawn (experimental)

Supported platforms:

  • Android (14+, ARM, x86, MIPS)
  • asm.js/Emscripten (1.25.0)
  • FreeBSD
  • iOS (iPhone, iPad, AppleTV)
  • Linux
  • MIPS Creator CI20
  • OSX (10.12+)
  • PlayStation 4
  • RaspberryPi
  • Windows (XP, Vista, 7, 8, 10)
  • UWP (Universal Windows, Xbox One)

Supported compilers:

  • Clang 3.3 and above
  • GCC 5 and above
  • VS2017 and above

Languages:

Building

Getting involved

Examples

API Reference

Tools

Who is using it? #madewithbgfx

Airmech

http://airmech.com/ AirMech is a free-to-play futuristic action real-time strategy video game developed and published by Carbon Games.
airmech

cmftStudio

https://github.com/dariomanesku/cmftStudio cmftStudio - cubemap filtering tool.
cmftStudio

Crown

https://github.com/dbartolini/crown Crown is a general purpose data-driven game engine, written from scratch with a minimalistic and data-oriented design philosophy in mind.
Crown screenshot

Offroad Legends 2

http://www.dogbytegames.com/ Dogbyte Games is an indie mobile developer studio focusing on racing games.
ios

Torque6

https://github.com/andr3wmac/Torque6 Torque 6 is an MIT licensed 3D engine loosely based on Torque2D. Being neither Torque2D or Torque3D it is the 6th derivative of the original Torque Engine. Torque 6 Material Editor

Kepler Orbits

https://github.com/podgorskiy/KeplerOrbits KeplerOrbits - Tool that calculates positions of celestial bodies using their orbital elements. Web Demo

CETech

https://github.com/cyberegoorg/cetech - CETech is Data-Driven game engine and toolbox inspired by Bitsquid/Stingray engine.
CETech screenshot

ioquake3

https://github.com/jpcy/ioq3-renderer-bgfx - A renderer for ioquake3 written in C++ and using bgfx to support multiple rendering APIs.
ioq3-renderer-bgfx screenshot

DLS

http://makingartstudios.itch.io/dls - DLS the digital logic simulator game.
DLS - Creating a 4-bit Register

http://dls.makingartstudios.com/sandbox/ - DLS: The Sandbox
dls-sandbox-screenshot

MAME

https://github.com/mamedev/mame MAME - Multiple Arcade Machine Emulator Try MAME in Browser!
mame-screenshot

Blackshift

https://blackshift.itch.io/blackshift - Blackshift is a grid-based, space-themed action puzzle game which isn't afraid of complexity — think Chip's Challenge on crack.

Blackshift Trailer, May 2016

Real-Time Polygonal-Light Shading with Linearly Transformed Cosines

https://eheitzresearch.wordpress.com/415-2/ - Real-Time Polygonal-Light Shading with Linearly Transformed Cosines, Eric Heitz, Jonathan Dupuy, Stephen Hill and David Neubelt, ACM SIGGRAPH 2016

Real-Time Polygonal-Light Shading with Linearly Transformed Cosines

Dead Venture

http://www.dogbytegames.com/dead_venture.html - Dead Venture is a new Drive 'N Gun game where you help a handful of survivals reach the safe haven: a military base on a far island.

Dead Venture - Gameplay Teaser (iOS / Android)

REGoth

https://github.com/degenerated1123/REGoth - Open source reimplementation of the zEngine, used by the game "Gothic" and "Gothic II".

Browser demo: http://gothic-dx11.de/gothic-js/REGoth.html

REGoth Engine

Ethereal Engine

https://github.com/volcoma/EtherealEngine EtherealEngine C++ Game Engine and WYSIWYG Editor
EtherealEngine screenshot

Go Rally

http://gorallygame.com/ - Go Rally is top-down rally game with a career mode, multiplayer time challenges, and a track creator.

Go Rally

vg-renderer

https://github.com/jdryg/vg-renderer#vg-renderer - A vector graphics renderer for bgfx, based on ideas from both NanoVG and ImDrawList (Dear ImGUI)
vg-renderer

Zombie Safari

http://www.dogbytegames.com/zombie_safari.html - Do what you please in this Open-World Offroad Driving game: explore massive landscapes, complete challenges, smash zombies, find secret locations, unlock and upgrade cars and weapons, it's up to you!

Zombie Safari - Official Gameplay Trailer (Android)

Smith and Winston

http://www.smithandwinston.com/ - Smith and Winston is an exploration twin stick shooter for PC, PS4 & XBoxOne arriving in late 2018. Smith and Winston features a massively destructable voxel world, rapid twin stick combat, physics puzzles and Metroid style discovery.

Smith and Winston: Gameplay Video

Football Manager 2018

http://www.footballmanager.com/ - Football Manager 2018 is a 2017 football management simulation video game developed by Sports Interactive and published by Sega.

Match Engine | Football Manager 2018

WonderWorlds

http://wonderworlds.me/ - WonderWorlds is a place to play thousands of user-created levels and stories, make your own using the extensive in-game tools and share them with whomever you want.

WonderWorlds

two-io / mud

https://hugoam.github.io/two-io/ - an all-purpose c++ app prototyping library, focused towards live graphical apps and games.

mud

Talking Tom Pool

https://outfit7.com/apps/talking-tom-pool/ - "Sling and match” puzzle game for mobile devices.

Talking Tom Pool

GPlayEngine

https://github.com/fredakilla/GPlayEngine#gplayengine - GPlayEngine is C++ cross-platform game engine for creating 2D/3D games based on the GamePlay 3D engine v3.0.

Off The Road

http://www.dogbytegames.com/off_the_road.html - Sandbox off-road driving simulator.

Off The Road

Coal Burnout

https://beardsvibe.com/ - Multiplayer PVP rhythm game.

coal-burnout

My Talking Tom 2

https://outfit7.com/apps/my-talking-tom-2/ - Many mini games for mobile devices.

My Talking Tom 2

NeoAxis Engine

https://www.neoaxis.com/ - Versatile 3D project development environment.

neoaxis-engine

xatlas

https://github.com/jpcy/xatlas#xatlas - Mesh parameterization library

xatlas

Heroes of Hammerwatch

https://store.steampowered.com/app/677120/Heroes_of_Hammerwatch/ Heroes of Hammerwatch is a rogue-lite action-adventure game set in the same universe as Hammerwatch. Encounter endless hordes of enemies, traps, puzzles, secrets and lots of loot, as you battle your way through procedurally generated levels to reach the top of the Forsaken Spire.

Heroes of Hammerwatch

Babylon Native

Build cross-platform native applications with the power of the Babylon.js JavaScript framework.

Babylon Native

Nira

Instantly load and view assets on any device. All you need is a web browser.

Nira
SIGGRAPH 2019: Project Nira: Instant Interactive Real-Time Access to Multi-Gigabyte Sized 3D Assets on Any Device

Heroes of Hammerwatch

openblack

An open source reimplementation of the game Black & White (2001).

OpenBlack

openblack

Cluster

Implementation of Clustered Shading and Physically Based Rendering with the bgfx rendering library.

Cluster

cluster

NIMBY Rails

NIMBY Rails is a management and design sandbox game for railways you build in the real world.

NIMBY Rails

NIMBY Rails

Minecraft

https://www.minecraft.net/zh-hant/attribution/

home-hero-1200x600

FFNx

Next generation driver for Final Fantasy VII and Final Fantasy VIII (with native Steam 2013 release support!)

FFNx

FFVIII

Shadow Gangs

Shadow Gangs is an arcade style ninja action game.

https://www.microsoft.com/en-gb/p/shadow-gangs/9n6hkcr65qdq

Shadow Gangs

Growtopia

Growtopia is a free-to-play sandbox MMO game with almost endless possibilities for world creation, customization and having fun with your friends. Enjoy thousands of items, challenges and events.

https://growtopiagame.com/

growtopia

Galaxy Trucker

Digital implementation of tabletop spaceship building in real-time or turn-based mode, then surviving space adventures, with AI opponents, multiplayer, achievements and solo campaign.

https://galaxytrucker.com/

Galaxy Trucker

Through the Ages

The card tabletop deep strategy game in your devices. Lead your civilization from pyramids to space flights. Challenges, achievements, skilled AIs and online multiplayer.

https://throughtheages.com/

Through the Ages

Codenames

One of the best party game. Two rival spymasters know the secret identities of 25 agents. Their teammates know the agents only by their codenames. Simple to explain, easy to understand, challenging gameplay.

https://codenamesgame.com/

Codenames

License (BSD 2-clause)

Copyright 2010-2020 Branimir Karadzic

Redistribution and use in source and binary forms, with or without modification,
are permitted provided that the following conditions are met:

   1. Redistributions of source code must retain the above copyright notice, this
      list of conditions and the following disclaimer.

   2. Redistributions in binary form must reproduce the above copyright notice,
      this list of conditions and the following disclaimer in the documentation
      and/or other materials provided with the distribution.

THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
OF THE POSSIBILITY OF SUCH DAMAGE.
Languages
C++ 44%
C 36.6%
Lua 5.4%
Zig 3.3%
C# 3%
Other 7.6%