Awesome

CoolEngines

Graphic Engine & Game Engine open source list！

Contents

Official

Official

Engine

Engine    EnginePlugin    OfflineEngine    SoftRenderer    RenderingDesign

Rendering

GI    VolumeRendering    PostProcessing    Stylize    Transparency    VFX    Standard Format

Emulation

Material    Environment       Camera

Optimization

Acceleration    SpatialDataStructures    RenderPath

Util

Util    SDF    Math    Image&Color    Noise    Mesh    Platform    UI

Tools

Tools

Tutorial

SDK&Tutorial

Other

Physics    Animation    Particle   

Official

• Unity Unity-Technologies    unity3d-jp    UnityLabs    UnityTech
• AMD GPUOpen-LibrariesAndSDKs    GPUOpen-Tools    GPUOpen-Effects    GPUOpen-Drivers
• NVIDIA NVIDIAGameWorks    nvpro-samples    NVIDIA    NVlabs
• Intel Intel GameTechDev https://software.intel.com/gamedev
• ARM ARM-software
• PowerVR powervr-graphics
• SideEfects sideeffects Hodini
• id-Software
• InteractiveComputerGraphics

Engine

• UnrealEngine :star: https://www.unrealengine.com/
• CRYENGINE :star: https://www.cryengine.com/
• Lumberyard https://aws.amazon.com/lumberyard/
• Urho3D lightweight, cross-platform 2D and 3D game engine,Greatly inspired by OGRE and Horde3D.
• filament:thumbsup: Filament is a physically based rendering engine for Android, Windows, Linux and macOS
• Falcor Real-Time Rendering Framework, NVIDIA
• Klayag A cross-platform open source game engine with plugin-based architecture
• G3D Graphics research and rapid prototyping in OpenGL and C++
• Ogre ogre github mirror
• OpenSceneGraph http://www.openscenegraph.org
• WickedEngine C++ game engine focusing on modern rendering techniques and performance. https://wickedengine.net
• stride Stride Game Engine (formerly Xenko)
• godot Godot Engine – Multi-platform 2D and 3D game engine https://godotengine.org
• anki-3d-engine AnKi 3D Engine - OGL/Vulkan backends, modern renderer, scripting, physics and more
• SpartanEngine Game engine with an emphasis on architectual quality and performance
• Granite personal Vulkan renderer
• FlaxEngine Flax Engine – multi-platform 3D game engine. https://flaxengine.com/
• bgfx :star: -Cross-platform, graphics API agnostic, "Bring Your Own Engine/Framework" style rendering library
• The-Forge The Forge Cross-Platform Rendering Framework PC, macOS / iOS, Android, XBOX, PS4
• island Project Island is an experimental, hot-reloading Vulkan renderer/proto-engine for Linux, written in C/C++.
• DiligentEngine A modern cross-platform low-level 3D graphics library http://diligentgraphics.com/diligent-engine/
• three.js JavaScript 3D library. https://threejs.org/
• cesium An open-source JavaScript library for world-class 3D globes and maps
• playcanvas ast and lightweight WebGL game engine https://playcanvas.com/

Engine Plugin

• Graphics Unity Graphics - Including Scriptable Render Pipeline
• armory -3D Game Engine for Blender
• RenderPipeline -PBR and Deferred Rendering for the Panda3D game engine
• ray-mmd physically-based rendering at mikumikudance

Offline Engine

• embree A collection of high-performance ray tracing kernels, developed at Intel.
• RadeonRays RadeonProRender ray intersection acceleration library for hardware and software multiplatforms using CPU and GPU
• appleseed A modern open source rendering engine for animation and visual effects https://appleseedhq.net/
• pbrt Source code for "Physically Based Rendering: From Theory To Implementation"
• mitsuba2 http://mitsuba-renderer.org/
• LuxCoreRender https://www.luxcorerender.org
• ospray A Ray Tracing Based Rendering Engine for High-Fidelity Visualization
• taichi Open Source Computer Graphics Library http://taichi.graphics
• tungsten High performance physically based renderer in C++11
• lighthouse2 Lighthouse 2 framework for real-time ray tracing
• nori Nori: an educational ray tracer https://wjakob.github.io/nori
• nanort single header only modern ray tracing kernel.
• SORT Simple Open-source Ray Tracer https://agraphicsguy.wordpress.com/
• fermat a high performance research oriented physically based rendering system, trying to produce beautiful pictures following the mathematician’s principle of least time

Soft Renderer

• OpenSWR A High Performance, Highly Scalable Software Rasterizer for OpenGL
• miaow An open source GPU based off of the AMD Southern Islands ISA.
• tinyrenderer A brief computer graphics / rendering course
• coco3d Coco3D is a real-time 3D software renderer for Windows PCs and mobile devices
• muli3d implements features of current graphics hardware in software. The focus is on ease of use and clear code
• swiftshader high-performance CPU-based implementation of the OpenGL ES and Direct3D 9 graphics APIs
• Mesa3D https://www.mesa3d.org
• renderer A shader-based software renderer written from scratch in C89 https://zauonlok.github.io/renderer/
• SoftwareRenderer Software rendering engine with PBR. Built from scratch on C++.
• Tyler Tile-based SW rasterizer
• RetroWarp The GPU is implemented with "pure" software rendering
• SoftRas Project page of paper "Soft Rasterizer: A Differentiable Renderer for Image-based 3D Reasoning"
• [grr] (https://github.com/kecho/grr) Gpu Renderer and Rasterizer - for python

Rendering Design

• DataDrivenRendering Data Driven Rendering repository
• fg Rendering abstraction which describes a frame as a directed acyclic graph of render tasks and resources.
• FrameGraph vulkan abstraction layer that represent frame as a task graph
• graphene Vulkan render graph shenanigans

GI

Collection

• IlluminationComparison A comparison of typical illumination methods. (SSAO, HBO, VXGI, and Ray Traced Global Illumination)
• dirtchamber A mixed reality testing environment for real-time global illumination algorithms

PRT

• precomputed-radiance-transfer
• SHTest
• SphericalHarmonicLighting
• Urho3D-1.4-SphericalHarmonicLighting

Irradiance Probes/Voxels

• webgl-deferred-irradiance-volumes An implementation of deferred irradiance volumes in WebGL
• RTXGI RTX Global Illumination (RTXGI) SDK

VPL

VSGL

• VSGL Fast Indirect Illumination Using Two Virtual Spherical Gaussian Lights

RSM

Imperfect Shadow Maps

• qt5-shadow-maps Shadow mapping implementation with Qt5 and OpenGL

Instant Radiosity

LPV

• Light-Propagation-Volumes
• GI-LPV Implement global illumination with OCaml, using light propagation volumes

VCT

• Nigiri An almost-dynamic voxel-based global illumination system for Unity.
• SEGI NKLIA fully-dynamic voxel-based global illumination system for Unity
• Unity-SRP-VXGI Voxel-based Global Illumination using Unity Scriptable Render Pipeline
• VCTRenderer Deferred Voxel Shading for Real Time Global Illumination
• voxel-cone-tracing A real-time global illumination implementation using voxel cone tracing.
• VoxelConeTracingGI Global illumination with Voxel Cone Tracing in fully dynamic scenes using a 3D clipmap to support huge areas around the camera while maintaining a low memory footprint.
• VoxelConeTracing An implementation of the "Voxel Cone Tracing" global illumination technique proposed by Cyril Crassin
• VCTGI GPU-based real-time global illumination renderer based on voxel cone tracing
• Vulkan-VXGI-VR-FrameWork University of Pennsylvania, CIS 565: GPU Programming and Architecture, Final Project
• MAGE Game and rendering engine featuring both forward and deferred PBR (physically-based rendering) pipelines with optional indirect illumination using Voxel Cone Tracing.
• Voxel_Cone_Tracing Voxel-Cone-Tracing easy to understand

SSGI

• SSGI-URP Screen Space Global Illumination for Unity Universal Render Pipeline
• FSSGI Fast Screen Space Global Illumination

DFGI

Lighting Grid

• LGHDemo Real-Time Rendering with Lighting Grid Hierarchy I3D 2019 Demo

Point Based GI

• PBGI Point Based Global Illumination

Radiosity

• instant_radiosity
• simple-instant-radiosity
• GIGL Tiny Global Illumination OpenGL Renderer

Ray tracing

Path tracing

• minpt A path tracer in 300 lines of C++

• GLSL-PathTracer :thumbsup: A GLSL Path Tracer

• PSRayTracing A (modern) C++ implementation of the first two books of the Peter Shirley Ray Tracing mini-books

• rayn A small path tracing renderer written in Rust.

• simple-bidirectional-pathtracer

• edubpt

• Volumetric-Path-Tracer Volumetric path tracer using cuda

• simple-spectral A Simple Spectral Renderer

RTX

• Quartz Physically based Vulkan RTX path tracer with a declarative ES7-like scene description language.
• DXRPathTracer A (very) simple path tracer implemented using DirectX Ray Tracing (DXR)
• WispRenderer RTX Ray Tracing Renderer, made by Y3 students at Breda University of Applied Science https://teamwisp.github.io
• rtx-explore DirectX Raytracing Path Tracer
• PBRVulkan Vulkan Real-time Path Tracer Engine
• Helios Real-time unidirectional GPU path tracer using the cross-vendor Vulkan ray-tracing extensions.
• vk_mini_path_tracer A beginner-friendly Vulkan path tracing tutorial in under 300 lines of C++.

Metropolis Light Transport

PhotonMapping

• CPMFIGIOTVVD Correlated Photon Mapping for Interactive Global Illumination of Time-Varying Volumetric Data by Daniel Jönsson and Anders Ynnerman
• SOPGI A VEX raytracer for SideFX Houdini with photon mapping global illumination and full recursive reflections and refractions
• DXR-PhotonMapper An implementation of Photon Mapping using DXR

Ambient occlusion

• KinoObscurance Alchemy Ambient Obscurance ---AlchemyHPG11
• ScalableAmbientObscurance https://research.nvidia.com/publication/scalable-ambient-obscurance
• XeGTAO An implementation of [Jimenez et al., 2016] Ground Truth Ambient Occlusion, MIT license
• ASSAO Adaptive Screen Space Ambient Occlusion
• Robust Screen Space Ambient Occlusion Robust Screen Space Ambient Occlusion
• HBAOPlus HBAO+ is a SSAO algorithm designed to achieve high efficiency on DX11 GPUs.
• gl_ssao optimized screen-space ambient occlusion, cache-aware hbao
• VXAO Voxel Ambient Occlusion
• MiniEngineAO SSAO image effect from Microsoft MiniEngine, ported to Unity.
• NNAO Neural Network Ambien Occlusion
• dssdo Deferred Screen Space Directional Occlusion http://kayru.org/articles/dssdo/
• ssgi Screen space global illumination demo: SSAO vs SSDO
• SSRT Real-time indirect diffuse illuminaton using screen-space information for Unity.
• AmplifyOcclusion Full source-code for Amplify Occlusion plugin for Unity
• Unity-Ground-Truth-Ambient-Occlusion A physically based screen space ambient occulsion post processing effect
• Unity-GeoAO Fast ambien occlusion in Unity at runtime
• ConeSphereOcclusionLUT ConeSphereOcclusionLUT generates a cone sphere occlusion LUT to be used with TLoU style capsule AO shadows. For details "Lighting Technology Of "The Last Of Us".
• RTAO Ray Traced Ambient Occlusion (RTAO) implemented using DirectX Raytracing (DXR)
• BNAO A tiny, GPU-based Bent Normal and Ambient Occlusion baker for Unity.
• dxr-ao-bake A demo of ambient occlusion map baking using DXR

Bent Normal

• ssbn Screen Space Bent Normals

Radiosity Normal Mapping

• GzRNM brings Radiosity Normal Mapping/Directional Light Mapping to Unity 3D!
• SSbumpGenerator A GUI interface to a tool for generating SSBumps (Self Shadowed Bump Maps).

LightMap

• lightmapper A C/C++ single-file library for drop-in lightmap baking. Just use your existing OpenGL renderer to bounce light!
• seamoptimizer A C/C++ single-file library that minimizes the hard transition errors of disjoint edges in lightmaps.
• BakingLab A D3D11 application for experimenting with Spherical Gaussian lightmaps
• GPULightmass Luoshuang's GPULightmass for UE4
• trianglepacker Triangle packer for light map
• HDR_Lightmapper Implements a cycles based lightmapper with denoiser
• The_Lightmapper Fast and easy baked GI Lightmaps for Blender and Cycles
• LightmapperToy This project is a hobby lightmapper completely based on Houdini geometry nodes. Basically it grew out of a re-implementation of Matt's The Baking Lab with some modification.

MLGI

• DeepIllumination Code and examples from our paper "Deep Illumination: Approximating Dynamic Global Illumination with Generative Adversarial Networks," by Manu Mathew Thomas and Angus Forbes

GI Simulation

Diffuse inter-reflection

Caustic

• SC_Tracer photon mapping for global illumination and caustic
• Crystal-Caustics Approximated crystal caustics effect in Unity.

Reflection

• ComputeStochasticReflections Compute Stochastic Screen Space Reflections for unity post processing
• kode80SSR An open source screen space reflections implementation for Unity3D 5.
• StochasticScreenSpaceReflection
• Unity-Screen-Space-Reflection Clearly Screen Space Reflection
• UnitySSR Open source screen space reflection for Unity 5
• synthese_image author's blog
• URP_ScreenSpacePlanarReflections Simple example of implementing screen space planar reflections as a RenderFeature for URP
• UnityURP-MobileScreenSpacePlanarReflection A simple and fast ScreenSpacePlanarReflection(SSPR) as a standalone reusable RendererFeature in URP.
• Jin-Engine-2.1 The implementation of Pixel-projected Screen Space Reflections
• BakedReflectionsUnity :thumbsup: Reflection Probe Atlas impl. for Unity

Refraction

• SS-refraction-through-depth-peeling-in-threejs Screen space refraction through depth peeling in threejs

Shadow

• realtimeshadows <Realtime Shadows> codes
• Shadows :thumbsup: A sample app that demonstrates several techniques for rendering real-time shadow maps
• UnityPCSS Nvidia's PCSS soft shadow algorithm implemented in Unity
• ContactShadows Experimental implementation of contact shadows for Unity.
• HFTS NVIDIA Hybrid Frustum Traced Shadows in NVIDIA ShadowLib.
• ShadowFX DirectX 11 and 12 library that provides a scalable and GCN-optimized solution for deferred shadow filtering
• Cinder-Experiments A collection of experiments, samples and other bits of code.
• of-ESMShadowMapping Exponential Shadow Mapping in openFrameworks
• RayTracedShadows This demo implements BVH construction and GPU traversal for rendering hard shadows.
• RaytracedHardShadow DXR based raytraced hard shadow for Unity
• ShadowVolume Shadow Volume for Static-Scene-Object of Unity
• variance_shadow_mapping_vk Variance shadow mapping for omni lights with Vulkan
• Precomputed-Shadow-Fields-for-Dynamic-Scenes A realization of computing soft shadow by shadow fields
• voxelized-shadows-improved Construction and sampling of precomputed shadows in a compressed voxel octree
• DeepShadowMap Real-Time Deep Shadow Maps for Unity3D

PostProcessing

Collection

• PostProcessing
• reshade-shaders A collection of post-processing shaders written for ReShade. https://reshade.me
• Cat-PostProcessing
• Unity5Effects
• Unity_ScreenSpaceTechStack This is a package which contains SSAO, SSDiffuse and SSReflection.

AA

• CMAA2 Conservative Morphological Anti-Aliasing 2.0
• MSAAFilter MSAA and Temporal AA Sample
• temporal Temporal Reprojection Anti-Aliasing for Unity 5.0+
• TAA_Unity_URP Temporal Anti-Aliasing(TAA) for Unity’s Universal Render Pipeline
• smaa SMAA: Subpixel Morphological Antialiasing, is a very efficient GPU-based MLAA implementation
• smaaDemo Subpixel Morphological AntiAliasing OpenGL/Vulkan demo
• SMAA SMAA in unity3D
• SpecularAA A demo of various normal map filtering techniques for reducing specular aliasing
• glsl-fxaa FXAA implementation for glslify in WebGL
• Phone-wire AA
• DLAA (DLAA) Directionally Localized antiAliasing
• TAA-STAR C++/Vulkan Implementations of State of the Art Temporal Anti-Aliasing Techniques
• UE4 DLSS DLSS Plugin for Unreal Engine

Denoising

• oidn Intel(R) Open Image Denoise library http://www.openimagedenoise.org/
• NvidiaAIDenoiser A simple implementation of Nvidia's AI denoiser
• RealTimeDenoisingNeuralBilateralGrid [EGSR2020] Real-time Monte Carlo Denoising with the Neural Bilateral Grid
• practicalDenoising Reference Implementation of Practical Denoising for VFX Production Using Temporal Blur
• bcd Bayesian Collaborative Denoiser for Monte-Carlo Rendering
• glslSmartDeNoise :thumbsup: Fast glsl spatial deNoise filter

Bloom

• SE-Natural-Bloom-Dirty-Lens (Legacy) post-processing effect for Unity.
• Unity_StarGlow This is an implementation of Kawase's light-streak.

Tone Mapping

• tonemapper
• aces-dev AMPAS Academy Color Encoding System Developer Resources http://www.oscars.org/aces

ImageProcess

• UnityImageEffects
• NeuralNetworkPostProcessing Unity Post Processing with Convolution Neural Network
• RunwayML-for-Unity RunwayML for Unity 🎯 https://runwayml.com/integrations
• Procedural-painting Procedural painting algorithms in Unity 3d with compute shaders based on genetic evolution algorithms
• Waifu2xBarracuda Waifu2x Unity Barracuda implementation
• barracuda-style-transfer Companion code for the Unity Style Transfer blog post, showcasing realtime style transfer using Barracuda.
• android-gpuimage Android filters based on OpenGL (idea from GPUImage for iOS)

Compression

• JPEG-MP4-Compression-PostProcessing-Effect-for-Unity3D This package aims to accurately recreate the effect of JPEG/MP4 compression as a PostProcessing Effect

Material

Shade Model

BSDF

• libbsdf Library for BSDF, BRDF, and BTDF
• brdf    brdfExplorer
• BRDFExplorer http://corralx.github.io/projects
• Lux Lux – open source physically based shader framework for unity
• Alloy Alloy physical shader framework for Unity. https://alloy.rustltd.com/
• AntonovSuit
• brdf Code sample accompanying the article "Crash Course in BRDF Implementation"
• anisotropic_layered_material Code for "Real-time Rendering of Layered Materials with Anisotropic Normal Distributions", SIGGRAPH ASIA 2019.
• WaveOpticsBrdf This code implements the key ideas of the paper: Rendering Specular Microgeometry with Wave Optics, by Ling-Qi Yan, Miloš Hašan, Bruce Walter, Steve Marschner, Ravi Ramamoorthi.

SVBRDF

• svbrdf-oculus materials from Two-Shot SVBRDF Capture for Stationary Materials by Aittala et al (2015).
• Matmorpher Code repository for the EGSR 2021 paper MatMorpher: A Morphing Operator for SVBRDFs

BSSRDF

• Subsurface-Light-Transport-Raytracer
• SingleScatteringEditing
• hitchhikersscatter A Hitchhiker’s Guide to Multiple Scattering

IBL

• IBLBaker Light probe generation and BRDF authoring for physically based shading.
• cmftStudio cross-platform open-source cubemap filtering tool.
• Probulator Experimentation framework for probe-based lighting
• PBR An implementation of physically based shading model & image based lighting in various graphics APIs.
• IBLGGX Sample implementation of UE4/Frostbite image based lighting method based on GGX convolution of HDR environment maps.
• IntegrateDFG DFG LUT generator
• hyper3d-envmapgen Pre-filtered mipmapped radiance environment map generator that runs on WebAssembly.

AreaLight

• LTC_BRDF_Fit BRDF fitting code for LTC Area Lights by Heitz et al.
• ltc_code Code for "Real-Time Polygonal-Light Shading with Linearly Transformed Cosines"
• rtswplusd Real-Time Shading with Polyhedral Lights using Silhouette Detection

Character

SSS

• FastTranslucentShader
• separable-sss iryoku's SSSSS
• ScreenSpaceSubsurfaceScattering
• SubsurfaceScattering An implementation of a set screen space physically-based subsurface scattering algorithms
• MultipassTranslucency fake subsurface-scattering shader, using multiple passes with different blend ops to calculate thickness without reading back the depth buffer.

Skin

• pbrt-skin-bssrdf Implementation of Donner & Jensen's "A Spectral BSSRDF for Shading Human Skin" in PBRT
• skin-shader-unity GPU Gems 3 - Chapter 14 using the Unity engine
• Unity-Human-Skin-Shader-PC
• FaceWorks A middleware library and sample application for high-quality skin and eye rendering

Eye

Hair

• TressFX DirectX 11 library that provides convenient access to realistically rendered and simulated hair and fur
• vkhr Real-Time Hybrid Hair Rendering using Vulkan™
• WetaHair Implementation of "Importance Sampling for Physically-Based Hair Fiber Models"
• libWetHair A Multi-Scale Model for Simulating Liquid-Hair Interactions http://libwethair.info

Colth

• libwetcloth A Multi-Scale Model for Simulating Liquid-Fabric Interactions
• fabric-micro-detail-scattering Micro Detail Fabric Shader

Silk

Fur

• FurRendering Fur rendering in Unity with Shell Texturing
• UnityFurShader Fur shader for Unity.
• GIFT_PorterDoll PorterDoll Asset wtih "THE GIFT"
• ShellFurGodot Add-on that adds a fur node to the Godot engine, using a shell based approach to imitate fur strands.

Glint

• specular-manifold-sampling Code for "Specular Manifold Sampling for Rendering High-Frequency Caustics and Glints" (SIGGRAPH 2020)
• real_time_glint real_time_glint_dictgenerator Procedural Physically based BRDF for Real-Time Rendering of Glints.

Nature

Water

• Ceto :thumbsup: Ceto: Ocean system for Unity

• WaterSurfaceWavelets Water Surface Wavelets (SIGGRAPH 2018) http://visualcomputing.ist.ac.at/publications/2018/WSW/

• FSWW Fundamental Sources for Water Wave Animation

• VaOcean Ocean Surface Simulation Plugin for Unreal Engine 4

• OceanProject An Ocean Simulation project for Unreal Engine 4

• Ocean Community Next Gen Next gen iteration of the unity community ocean shader

• UE4_Dynamic_Water_Project Unreal Engine 4 Dynamic Water Project by marvelmaster

• WaveWorks WaveWorks is a library for simulating wind-driven waves on large bodies of water, in real time, using GPU acceleration.

• crest-oceanrender :thumbsup: Crest is a technically advanced ocean renderer implemented in Unity3D

• whitecaps Real-time Animation and Rendering of Ocean Whitecaps

• BoatAttack com.verasl.water-system Gerstner waves water.

• RealtimeWater implemented based on "Fast Water Simulation for Games Using Height Fields".

• fft-ocean WebGL FFT (Fast Fourier transform) ocean rendering for Three.js

• EncinoWaves Implementation of "Empirical Directional Wave Spectra for Computer Graphics" paper by Christopher Horvath

• water-wave-packets Sandbox binary and source code for the Siggraph 2017 paper "Water Wave Packets" by Stefan Jeschke (NVIDIA) and Chris Wojtan (IST Austria)

• WaveParticle A project for testing the wave particle

• Wave-Particles-with-Interactive-Vortices A dx12 river renderer using wave particles with interactive vortices.

• UnityWaveEquation unity实现二维波方程交互水面与实时焦散

• WaterCaustics Water caustic rendering experiments in OpenGL with Python

• threejs-caustics Caustics computation using ThreeJS

• water-demo A port of Evan Wallace's "Water Demo" for WebGL to Unity.

• Ocean_mobile_with_boat_physic Ocean mobile with boat physic controller

• Unity-WaterBuoyancy Water Buoyancy Simulation for Unity

• UnityTerrainErosionGPU Hydraulic and thermal erosion with shallow water equations implemented in Unity using compute shaders.

• DynamicWaterDemo A real-time dynamic water simulation with object interaction made entirely within the Godot Engine.

• Jerry Tessendorf's paper "Simulating Ocean Water".
  fftocean ocean-simulation Phillips-Ocean

• Eric.Bruneton's paper "an improved version using an FFT method to synthesize the surface." Eric.Bruneton Brunetons-Ocean

Snow

• Unity-IndentShader http://wacki.me/blog/2017/01/dynamic-snow-sand-shader-for-unity/
• SnowDeformation To create a snow accumulation and deformation effect along with physical based rendering
• UnrealSnow Unreal Engine snow simulation for large terrains using Compute Shaders for GPU paralellization.
• DeepSnowFootprint A unity shader solution to generate footprint on thick snow surfaces.
• unity-deformablesnow Repository for online PIGSquad workshop on deformable snow in Unity.
• SnowSimulation GPU Snow Simulation for Unity and Direct3D
• snow "A Material Point Method for Snow Simulation" (Stomakhin et al., 2013).
• SnowSimulation

Sand

• JourneySand An Unity project to reproduce the sand rendering in Journey's style

Grass

• KvantGrass Animating grass shader for Unity
• UnityGrassGeometryShader https://roystan.net/articles/grass-shader.html
• GLGrassRenderer implementation of Responsive Real-Time Grass Rendering for General 3D Scenes
• Grass.DirectX Realistic Grass Rendering using DirectX 11 and a geometry-shader based approach.
• VulkanGrassRendering Vulkan implementation of "Responsive Real-Time Grass Rendering for General 3D Scenes" by Jahrmann and Wimmer
• GPUGrass real-time grass rendering based on GPU instancing
• MassiveGrass Unity Terrain spawns a large number of grasses along the edge of the tree (shader independent)

Tree

• Vulkan-Forest-Rendering-Engine

Terrain

• Terrain-Topology-Algorithms Terrain topology algorithms in Unity
• tin-terrain A command-line tool for converting heightmaps in GeoTIFF format into tiled optimized meshes.
• TerrainPrettifier A small GPU-based component designed to aid in cleaning and refining satellite/DEM based terrains directly inside Unity.
• PVTUT Procedural Virtual Texture with Unity Terrain
• terrain-erosion-3-ways Three Ways of Generating Terrain with Erosion Features
• Webgl-Erosion Erosion simulation in Web Browser

Cloud

• volsample Research on sampling methods for real-time volume rendering
• kode80CloudsUnity3D A realtime volumetric cloud rendering solution for Unity3D.
• clouds Volumetric Clouds plugin for Stingray
• Meteoros Real-time Cloudscape Rendering in Vulkan based on the implementation of clouds in the Decima Engine.
• Custom-Middleware Ephemeris 2 is a middleware solution for implementing a dynamic 24 hour Skydome System.
• VolumeCloud Volume cloud for Unity3D
• Clouds https://www.youtube.com/watch?v=4QOcCGI6xOU
• TerrainEngine-OpenGL renders an (almost) procedural scene, featuring a terrain with distance adaptive LOD, water surface simulation and volumetric clouds.
• realtime_clouds Experiment with generating clouds in real time on low end computer
• Marshmallow Vulkan-based implementation of clouds from Decima Engine
• volumetric-clouds Volumetric clouds in Unity
• Raymarch-Clouds Unity Iq's Clouds.
• droplet-render Volumetric cloud modeling and rendering for Blender.
• Mesh-Cloud-Rendering Reimplement Sea of Thieves's Cloud in Unity
• UnlitClouds A unity cloud shader, using vertex colors and tessellation for a simple stylized look.

Sky

• SkyboxPanoramicShader
• SkyModels A collection of various Sky Models implemented with OpenGL compute shaders suitable for real-time rendering.
• sun-sky Various sun/sky models, convolution of theta/gamma-parameterised models
• nvjob-sky-shader-simple-and-fast #NVJOB Dynamic Sky. Sky Shaders. Free Unity Asset.

Rain

• Unity-Raindrops raindrops shader
• RainDropEffect Rain Drop Effect2: Effective, Fast and Flexible Rain Distortion Effect for Unity
• LensRain A screen-space lens rain effect using Unity's V2 Post-processing framework.
• RainFX Natural Rain

Fire

• fire A fire effect for Unity.
• volumetric-fire Project for Computer Graphics course by Jaagup Kuhi, Siim Raudsepp and Andri Poolakese

Ice

Iridescent

• Iridescence
• Iridescent Shader Iridescence shader
• SoapFlow a fluid simulation of a 2D soap film

Glass

• unity-frosted-glass Test of a frosted glass material in Unity.

Gem

• UnityRayTracingGem Ray tracing gem shader for Unity

Environment

VolumetricLight

• VolumetricLights Volumetric Lights for Unity
• LightShafts A light shafts (volumetric shadows) effect for Unity.
• VolumetricLighting NVIDIA Gameworks Volumetric Lighting
• VolumetricLighting ighting effects implemented for the Adam demo: volumetric fog, area lights and tube lights
• Aura Volumetric Lighting for Unity
• Vapor Volumetric Fog for Unity

FakeVolumetricLight

• VolumetricTracer A simple way to render soft, volumetric bullet tracers in Unity. Only needs a unit cube and a material to render and supports instancing.

Atmospheric

• UnrealEngineSkyAtmosphere A Scalable and Production Ready Sky and Atmosphere Rendering Technique
• AtmosphericScattering Atmospheric Scattering for Unity
• precomputed_atmospheric_scattering Eric Bruneton, 2017
• Brunetons-Improved-Atmospheric-Scattering Eric Bruneton for Unity, 2017 LWRP ver(greje656)
• clear-sky-models This project implements 8 clear sky models in a common framework to compare them with each other and with a reference model and reference measurements.
• OutdoorLightScattering Outdoor Light Scattering Sample
• Scatterer Atmospheric scattering mod for KSP
• tectonics.js 3d plate tectonics in your web browser
• MinimalAtmosphere A minimal atmospheric scattering implementation for Unity
• glsl-atmosphere Renders sky colors with Rayleigh and Mie scattering.

Fog

• unity-volumetric-fo
• UEShaderBits-GDC-Pack UE4 Volumetric Fog Techniques
• SSMS Screen space multiple scattering for Unity.

Render Path

• VolumeTiledForwardShading :thumbsup: Volume Tiled Forward Shading. This technique is based on Tiled and Clustered Forward Shading (Olsson, 2012)
• HybridRenderingEngine Clustered Forward/Deferred renderer with Physically Based Shading, Image Based Lighting and a whole lot of OpenGL.
• ClusteredShadingAndroid and IntelForwardClusteredShading Clustered shading on Android sample
• clustered_forward_demo Ola Olsson.
• Cluster Clustered shading implementation with bgfx
• ClusteredShadingConservative DirectX 12 light culling technique featured in GPU Pro 7
• lightindexed-deferredrender Light Indexed Deferred Rendering - Before there was Forward+ and Clustered deferred rendering there was Light Indexed Deferred Rendering (ShaderX7)
• Vulkan-Forward-Plus-Renderer Forward+ renderer in Vulkan using Compute Shader. An Upenn CIS565 final project.
• nTiled nTiled - forward and deferred openGL renderer with support for Tiled Shading, Clustered Shading and Hashed Shading
• DeferredTexturing A rendering sample that demonstrates bindless deferred texturing using D3D12
• SweetTexelShading Texel-Shading (experimental!) with Unity's ScriptableRenderPipeline

Camera

Physically Based Camera

• Physical-Camera
• pbc
• Cat-Physically-Based-Camera

DOF

• HexBokehBlur Hexagonal Bokeh Blur
• BokehDepthOfField Implementing Different Algorithms to mimic Bokeh Depth Of Field: A Physical Camera Effect created due to Focal Length, Aperture size, shape
• VVDoFDemo

Lens

• PhysicallyBasedLensFlare Lens flare
• LightLeaksUnity Light Leaks Image Effects for Unity
• hdreffects High dynamic range rendering, with lens flare approximation and bloom
• LensFlares Simple GPU Occlusion for Lens Flares
• UnityOcclusionLensFlare A Lens Flare effect for Unity that doesn't require Physics.

Standard Format

• OpenShadingLanguage Advanced shading language for production GI renderers
• glTF-SDK glTF-SDK is a Software Development Kit for glTF
• cgltf Single-file glTF 2.0 loader and writer written in C99
• fx-gltf A C++14/C++17 header-only library for simple, efficient, and robust serialization/deserialization of glTF 2.0
• gltf-pipeline Content pipeline tools for optimizing glTF assets
• USD Universal Scene Description http://www.openusd.org
• MaterialX MaterialX is an open standard for transfer of rich material and look-development content between applications and renderers.
• MDL NVIDIA Material Definition Language SDK
• OpenMeshEffect OpenFX Mesh Effect API - A plug-in API for cross-software procedural mesh effects

Stylize

NPR

• NPR_Lab Test some NPR in Unity.
• JasonMaToonRenderPipeline JTRP : Unity HDRP ToonShading Render Pipeline (Preview)
• ToonShading A collection of "Toon" shaders for Unity based on a stepped PBR approximation.
• kamakura-shaders NPR for Unity with a bunch of features and adjustable parameters in a user-friendly interface.
• UnityChanToonShaderVer2_Project UnityChanToonShaderVer2 Project / v.2.0.7 Release
• MToon Toon Shader with Unity Global Illumination
• PoiyomiToonShader A feature rich toon shader for unity and VR Chat
• Xiexes-Unity-Shaders A re-write and restructure of XSToon.
• MNPR An expressive non-photorealistic rendering framework for real-time, filter-based stylization pipelines within Maya. http://mnpr.artineering.io
• Wind-Waker-Shader Cel Shading of two thresholds with a blur/gradient between them
• UnityNPR A testbed for non-photorealistic rendering in Unity.
• ChinesePaintingDemo Demo of Chinese Painting Shader
• WaterColorFilter WaterColorFilter for Unity
• ToonLandscape3 ToonLandscape3
• Toon-Shader A character focused Toon Shader for Unity using Shader Graph.
• URP_StylizedLitShader Madumpa's URP Stylized Lit Shader Repository
• BotW-ToonShader A recreation of Zelda: Breath of the Wild's toon shader in Unity, using Shader Graph

Low Poly

• LowpolyOcean low polygon water effect working in Unity
• Lowpoly-Water-Unity Low poly water with edge/shore blend. Similar to the awesome water in Monument Valley.
• FlatShader A very simple shader which performs flatshading without the need for duplicating vertices when building the geometry.
• 3d-quickhull Header only 3d quickhull in c99 http://www.karim.naaji.fr/projects/quickhull

Voxel

• UE4VoxelTerrain Unreal Engine 4: Smooth voxel terrian
• VoxelPlugin Voxel plugin for Unreal Engine
• voxelizer Header only mesh voxelizer in c99
• gpu-physics-unity A GPU Accelerated Voxel Physics Solver for Unity
• Field3D A library for storing voxel data on disk and in memory.
• magicavoxel-shaders Shaders for MagicaVoxel to simplify common and repetitive tasks.
• UnityVOXFileImport A tool to import a .vox file for Unity's GameObject and Prefab
• Terasology open source voxel world http://terasology.org
• VoxelSpace errain rendering algorithm in less than 20 lines of code
• unity-voxel Mesh voxelization for Unity.
• tsdf-fusion Fuse multiple depth frames into a TSDF voxel volume.
• Marching-Cubes-Terrain Marching Cubes terrain implementation in Unity using the Job System and the Burst compiler

Volume Rendering

RayMarch

• uRaymarching Raymarching Shader Generator in Unity
• unity-ray-marching Ray Marching Sandbox
• unity-volume-rendering Volume rendering by object space raymarching for Unity.
• Texture3DPreview-for-Unity This package enables interactive previews of Texture3D assets in Unity's Inspector window.
• UnityVolumeRendering A volume renderer, made in Unity3D. See slides from presentation here: https://speakerdeck.com/mlavik1/volume-rendering-in-unity3d
• unity-ray-marching Ray marching for rendering 3D noise and textures in Unity 3D
• UE4_VolumeRaymarching Plugin for UE4 to perform volume raycasting

Point Clouds

• PCL A standalone, large scale, open project for 2D/3D image and point cloud processing.
• Pcx Point cloud importer & renderer for Unity
• compute_rasterizer Rendering Point Clouds with Compute Shaders
• potree WebGL point cloud viewer for large datasets
• point2mesh Reconstruct Watertight Meshes from Point Clouds [SIGGRAPH 2020]

Shear-warp

Other

• OpenVDB Sparse volume data structure and tools. OpenVDBForUnity
• unreal-vdb This repo is a non-official Unreal plugin that can read OpenVDB and NanoVDB files in Unreal.
• openvkl Intel® Open Volume Kernel Library (Intel® Open VKL) is a collection of high-performance volume computation kernels

Acceleration

Frustum Culling

• sseculling

PVS

• kPortals A pre-calculated Portal visibility system for Unity.
• CornerCulling Fast and Maximally Accurate Occlusion Culling

..

• pipeline nvpro-pipeline is a research rendering pipeline
• IndirectOcclusionCulling Indirect Occlusion Culling
• melt Automatic conservative mesh occluder generation by box filling

Bounding

• bounding-mesh Implementation of the bounding mesh and bounding convex decomposition algorithms for single-sided mesh approximation

Soft Occlusion Culling

• intel_occlusion_cull
• Image-Space-Occlusion-Culling-Engine Image Space Occlusion Culling Engine optimized to perform occlusion culling in CPU.
• Janua Open Source occlusion culling engine for 3D Scenes
• OcclusionCulling software (CPU) based approach to occllusion culling using multi-threading and SIMD instructions to improve performance.
• rasterizer This project is a state-of-the-art software occlusion culling system.
• vigilant-system
• Horus-Unity-Occlusion-Culling Occlusion culling for Unity

Hardware Occlusion Queries

Hierarchical-Z Buffer

• Hierarchical-Z-Buffer

Hierarchical Occlusion Map

GPU-Driven

• Indirect-Rendering-With-Compute-Shaders Compute shader: Frustum culling,Occlusion culling with HierarchicalZBuffer
• gpu_occlusion_culling_vk GPU occlusion culling using compute shader with Vulkan
• niagara A Vulkan renderer written from scratch on stream

Imposter

• IMP billboard imposter baking for Unity
• ImpostorBaker UE4 Plugin for generating Impostors for static meshes

LOD

• Planet-LOD Planet Rendering: Adaptive Spherical Level of Detail based on Triangle Subdivision

HLOD

• HLODSystem HLOD system

Meshlets

• meshlete Chop 3D objects to meshlets
• gl_vk_meshlet_cadscene This OpenGL/Vulkan sample illustrates the use of "mesh shaders" for rendering CAD models.

Spatial Data Structures

• UnityOctree A dynamic, loose octree implementation for Unity written in C#
• NativeQuadtree A Quadtree Native Collection for Unity DOTS
• ECS-Octree Unity ECS based octree.
• KDTree Fast KDTree for Unity, with thread-safe querying.
• KdTree A fast, generic, multi-dimensional Binary Search Tree written in C#
• aabo Axis Aligned Bounding Octahedron
• three-mesh-bvh A BVH implementation to speed up raycasting and enable spatial queries against three.js meshes.
• bhh Bounding Halfspace Hierarchy
• Fast-BVH A Simple, Optimized Bounding Volume Hierarchy for Ray/Object Intersection Testing
• bvh A modern C++ BVH construction and traversal library
• bvh BVH STAR in Japanese
• ooc_svo_builder Out-Of-Core Construction of Sparse Voxel Octrees - reference implementation
• SparseVoxelOctree A GPU SVO Builder using rasterization pipeline, a efficient SVO ray marcher and a simple SVO path tracer.
• Transvoxel-XNA Transvoxel implementation in C# for XNA
• HashDAG Interactively Modifying Compressed Sparse Voxel Representations
• Unity_GPUNearestNeighbor Spatial Hashing Algorithm with GPU Acceleration

SDF

• Discregrid A static C++ library for the generation of discrete functions on a box-shaped domain. This is especially suited for the generation of signed distance fields.
• IsoMesh A group of related tools for Unity for converting meshes into signed distance field data, raymarching signed distance fields, and extracting signed distance field data back to meshes via surface nets or dual contouring.
• SDFr Unity. ECS. Many rays intersect in triangles
• MeshToSDF Unity. Computer Shader. JFD Generate SDF in realtime
• Signed-Distance-Field-Generator Unity. Computer Shader. Find the nearest distance of the triangle
• msdfgen Multi-channel signed distance field generator
• Typogenic Signed-distance field text rendering for Unity
• SDF Signed Distance Field Builder for Contour Texturing
• SDFGen A simple commandline utility to generate grid-based signed distance field (level set) generator from triangle meshes
• DeepSDF Learning Continuous Signed Distance Functions for Shape Representation
• sdfu Signed Distance Field Utilities https://crates.io/crates/sdfu
• mTec Rendering the World Using a Single Triangle:Efficient Distance Field Rendering
• distance-occlusion A library of distance and occlusion generation routines
• pb_CSG Constructive Solid Geometry (CSG) csg.js
• rust_test :thumbsup:
• snelly A system for physically-based SDF (signed distance field) pathtracing in WebGL
• Signed Signed will be an GPL licensed editor and renderer for procedural Signed Distance Functions (SDFs).

Transparency

• unity-dithered-transparency-shader Unity material and shader for applying clipped, dithered transparency
• PreMulAlpha Pre-Multiplied blend mode

OIT

• Order-Independent-Trasparency
• OIT_Lab
• oitDemo Order Independent Transparency In OpenGL 4.x
• vk_order_independent_transparency Demonstrates seven different techniques for order-independent transparency in Vulkan.
• PixelSyncOIT A demo for order independent transparency using pixel synchronization (GL_ARB_fragment_shader_interlock)

Optimization

• OffScreenParticleRendering Off Screen Particle Rendering system for Unity Other.....
• TLVulkanRenderer Vulkan-based renderer on real-time transparency

Differentiable

• redner Differentiable rendering without approximation.
• nvdiffrast Nvdiffrast - Modular Primitives for High-Performance Differentiable Rendering.
• jrender Jrender 2.0

Math

• Eigen :star: linear algebra: matrices, vectors, numerical solvers, and related algorithms. Eigen
• MathGeoLib :thumbsup: A C++ library for linear algebra and geometry manipulation for computer graphics
• GeometricTools :thumbsup: A collection of source code for computing in the fields of mathematics, geometry, graphics, image analysis and physics.
• glm OpenGL Mathematics (GLM) https://glm.g-truc.net
• CGAL geometric algorithms in the form of a C++ library.
• cglm Highly Optimized Graphics Math (glm) for C
• GEOS Geometry Engine
• klein :thumbsup: P(R*_{3, 0, 1}) specialized SIMD Geometric Algebra Library https://jeremyong.com/klein
• MTL Matrix Template Library, a linear algebra library for C++ programs.
• DirectXMath DirectXMath is an all inline SIMD C++ linear algebra library for use in games and graphics apps
• polyscope A prototyping-oriented UI for geometric algorithms https://polyscope.run
• geomc A c++ linear algebra template library
• geometry3Sharp C# library for 2D/3D geometric computation, mesh algorithms, and so on
• fastapprox Approximate and vectorized versions of common mathematical functions
• hlslpp Math library using hlsl syntax with SSE/NEON support
• vml C++17 GLSL-like vector and matrix math lib
• mathfu C++ math library developed primarily for games focused on simplicity and efficiency. http://google.github.io/mathfu

MathInShader

• ShaderFastLibs Shader libraries for fast shader opetations.

SH

• sh-lib Spherical/zonal harmonics library
• spherical-harmonics Spherical harmonics library
• IntegralSH Integrating Clipped Spherical Harmonics Expansions
• HLSL-Spherical-Harmonics A collection of HLSL functions one can include to use spherical harmonics in shaders.
• SHTOOLS SHTOOLS - Spherical Harmonic Tools https://shtools.github.io/SHTOOLS/

Curve

• nurbs Non-Uniform Rational B-Splines (NURBS) of any dimensionality

FFT

• benchmarking-fft choosing FFT library
• VkFFT Vulkan Fast Fourier Transform library
• GLFFT A C++11/OpenGL library for the Fast Fourier Transform
• dj_fft Header only FFT library

Sampling

• SampleZoo Simple implementations of sampling patterns, with objective tests to compare them

Random

• pcg-cpp PCG Random Number Generation

Image&Color

Noise

• procedural-tileable-shaders Collection of tileable procedural textures such as: cellular noise, fbm, voronoi, perlin and other.
• FastNoise Fast C++ Noise Library. Others Version: C++/C#/SIMD/Unity/Unreal
• LibNoise.Unity libnoise Coherent noise library for Unity, a port of LibNoise
• webgl-noise :star: Procedural Noise Shader Routines compatible with WebGL
• GPU-Noise-Lib Optimized GPU noise functions and utilities http://briansharpe.wordpress.com/
• Wombat An efficient texture-free GLSL procedural noise library
• NoiseShader Noise shader library for Unity
• OpenSimplex2 Successors to OpenSimplex Noise, plus updated OpenSimplex.
• Accidental Noise Library generating Perlin noise and other forms of noise in a modular fashion.
• VisualNoiseDesigner Visual Noise Designer for Unity
• TileableVolumeNoise Collection of functions that can be used to generate tileable volume/3d noise. An exemple of volume noise functions that can be specifically used for clouds is also presented.
• CloudNoiseGen A static utility class for Unity which handles generating and loading periodic, cloud-like (perlin-worley) 3D noise textures on the GPU.
• BlueNoiseGenerator an implementation of a Siggraph 2016 paper "Blue-noise Dithered Sampling" by Iliyan Georgiev and Marcos Fajardo from Solid Angle
• LowDiscBlueNoise generate 2D point sets which have both low discrepancy and Blue-Noise properties.
• glsl-curl-noise CurlNoise
• Noice Noise generator utility.

Computer Vision

• OpenCV Open Source Computer Vision Library. C# Wrapper opencvsharp
• unrealcv UnrealCV: Connecting Computer Vision to Unreal Engine

Image

• bimg :thumbsup: Image library.
• OpenImageIO OpenImageIO http://www.openimageio.org
• ImageSharp A cross-platform library for the processing of image files; written in C#
• ImageMagick create, edit, compose, or convert bitmap images. It can read and write images in a variety of formats (over 200)
• ImageViewer HDR, PFM, DDS, KTX, EXR, PNG, JPG, BMP image viewer and manipulator
• Dithering-Unity3d Dithering algorithms for Unity3d
• psd_sdk A C++ library that directly reads Photoshop PSD files.
• hdrview High-dynamic range image viewer with an emphasis on examining and comparing images, and including minimalistic tonemapping capabilities.

VectorGraphics

• vg-renderer A vector graphics renderer for bgfx, based on ideas from NanoVG and ImDrawList (Dear ImGUI)

TextureCompressed

• nv_dds DDS image loader for OpenGL/ OpenGL ES2 http://paroj.github.io/nv_dds/
• nvidia-texture-tools Texture processing tools with support for Direct3D 10 and 11 formats.
• crunch Advanced DXTc texture compression and transcoding library http://binomial.info
• unity-ycca-subsampling ChromaPack YCCA chroma subsampling technique
• basis_universal :star: Basis Universal GPU Texture and Texture Video Compression Codec
• bc7enc Single source file BC1-5 and BC7 encoders and BC1-5/7 decoders with MIT or Public Domain licenses
• astc-encoder This is the official repository for the Arm ASTC Encoder, a texture compressor for the Adaptive Scalable Texture Compression data format.
• betsy Betsy aims to be a GPU compressor for various modern GPU compression formats such as BC6H, purposedly written in GLSL so that it can be easily incorporated into OpenGL and Vulkan projects.
• Goofy Goofy - Realtime DXT1/ETC1 encoder
• GPURealTimeBC6H Real-time BC6H compression on GPU
• tev High dynamic range (HDR) image comparison tool for graphics people with an emphasis on OpenEXR images.
• KtxUnity :thumbsup: Load KTX and Basis Universal textures at runtime
• qoi The “Quite OK Image” format for fast, lossless image compression
• libspng Simple, modern libpng alternative https://libspng.org/
• fpng Super fast C++ .PNG writer/reader

Color

• OpenColorIO A color management framework for visual effects and animation http://opencolorio.org
• GLSL-Color-Spaces Utility functions to convert between various color spaces in GLSL
• colour Colour Science for Python https://www.colour-science.org
• color ++ library thats implemets class color. Available models: RGB, HSL, HSV, CMY, CMYK, YIQ, YUV and growing.
• colormap-shaders A collection of shaders to draw color maps.

Mesh

IO

• assimp A library to import and export various 3d-model-formats
• open3mod Open 3D Model Viewer - A quick and powerful 3D model viewer
• DirectXMesh
• OpenFBX Lightweight open source FBX importer
• fast_obj Fast C OBJ parser

Subdivision

• OpenSubdiv An Open-Source subdivision surface library. http://graphics.pixar.com/opensubdiv

Simplification

• Fast-Quadric-Mesh-Simplification Mesh triangle reduction using quadrics
• UnityMeshSimplifier Mesh simplification for Unity.
• simplify Implementation of Surface Simplification Using Quadric Error Metrics, SIGGRAPH 97, written in Go.
• SeamAwareDecimater Mesh simplification with UV's boundary preserved
• BunnyLOD Cross platform GLFW based port of Stan Melax's BunnyLOD Easy Mesh Simplification

Deform

• Deform A framework for deforming meshes in the editor and at runtime in Unity.

DelaunayTriangulation

• CDT C++ library for constrained Delaunay triangulation (CDT)
• poly2tri Fast and Robust Simple Polygon Triangulation With/Without Holes poly2tri-cs
• unity-triangulation2D Ruppert's Delaunay Refinement Algorithm in Unity
• unity-delaunay-triangulation
• Constrained_Delaunay_Triangulation

Delaunay&Destruction

• unity-delaunay A Delaunay/Voronoi library for Unity, and a simple destruction effect
• Boom.unity Destruction effect in unity
• ScamScatter Open Source Real time procedural mesh destruction for Unity3D
• unity-destruction An open-source script to destroy objects realistically in Unity3D.
• Hull-Delaunay-Voronoi Hull, Delaunay and Voronoi algorithms in Unity

Slicer

• ezy-slice An open source mesh slicer framework for Unity3D Game Engine. Written in C#.
• mesh-cutter Simple mesh cutting algorithm that works on simple 3d manifold objects with genus 0

Modeling

• Dust3D :thumbsup: a cross-platform 3D modeling software. Auto UV unwrapping, auto rigging with PBR Material support, pose and motion authoring all in one. https://dust3d.org/
• meshlab MeshLab is mostly based on the mesh processing library VCGlib
• Mesh-processing-library mesh processing techniques in computer graphics published at ACM SIGGRAPH in 1992–1998
• pmp-library The Polygon Mesh Processing Library
• PyMesh a rapid prototyping platform focused on geometry processing https://pymesh.readthedocs.io
• trimesh Python library for loading and using triangular meshes.
• libigl Simple C++ geometry processing library.
• instant-meshes Interactive field-aligned mesh generator
• openmesh A generic and efficient polygon mesh data structure
• openflipper programming framework designed for processing, modeling and rendering of geometric data.
• cinolib A generic programming header only C++ library for processing polygonal and polyhedral meshes
• mmg open source software for bidimensional and tridimensional remeshing http://www.mmgtools.org
• Directional Directional is a C++ library for creating, manipulating and visualizing directional fields on 3D meshes
• Easy3D A lightweight, easy-to-use, and efficient C++ library for processing and rendering 3D data

Sketch

• monster-mash A new sketch-based modeling and animation tool that allows you to quickly sketch a character, inflate it into 3D, and promptly animate it.

Optimization

• meshoptimizer Mesh optimization library that makes indexed meshes more GPU-friendly

Compress

• Compressonator Tool suite for Texture and 3D Model Compression, Optimization and Analysis using CPUs, GPUs and APUs
• draco compressing and decompressing 3D geometric meshes and point clouds.

Reconstruction

• meshroom 3D Reconstruction Software based on the (AliceVision)[https://github.com/alicevision/AliceVision] framework.
• openMVG open Multiple View Geometry library. Basis for 3D computer vision and Structure from Motion.

Direction fields

• fieldgen Generates high-quality, optimally smooth tangent direction fields on triangle meshes.

Platform

• herebedragons A basic 3D scene implemented with various engines, frameworks or APIs.
• glfw A multi-platform library for OpenGL, OpenGL ES, Vulkan, window and input
• MoltenVK Vulkan graphics and compute API, that runs on Apple's Metal graphics framework
• dxvk Vulkan-based D3D11 implementation for Linux / Wine

UI

• imgui :star: Dear ImGui: Bloat-free Immediate Mode Graphical User interface for C++ with minimal dependencies
• ImGuizmo Immediate mode 3D gizmo for scene editing and other controls based on Dear Imgui
• nanovg Antialiased 2D vector drawing library on top of OpenGL for UI and visualizations.
• nanogui Minimalistic GUI library for OpenGL
• nuklear A single-header ANSI C gui library
• AnttWeakbar a light and intuitive GUI into OpenGL or DirectX based programs to interactively tweak parameters on-screen.

Util

• stb
• yocto-gl Yocto/GL: Tiny C++ Libraries for Physically-based Graphics
• debug-draw

GPGPU

• arrayfire ArrayFire: a general purpose GPU library.
• hipSYCL Implementation of SYCL for CPUs, AMD GPUs, NVIDIA GPUs
• Amplifier.NET Amplifier allows .NET developers to easily run complex applications with intensive mathematical computation on Intel CPU/GPU, NVIDIA, AMD without writing any additional C kernel code.
• moderngpu Patterns and behaviors for GPU computing

VFX

• UnityExperiments Collection of experimental Unity Projects
• ShadersForFun ShadersForFun
• smo-shaders A collection of shaders to replicate those used in Super Mario Odyssey's Snapshot Mode.
• shader-graph-nodes Custom Nodes for Unity Shader Graph

Minecraft

• Wisdom-Shaders A Minecraft shaderspack. Offers high performance with high quality at the same time. https://qionouu.cn/
• Ebin-Shaders This is a Minecraft shaderpack for use with Optifine.
• robobo1221Shaders

MetaBlobs

• MetaBlob Meta Blobs for Unity 3D.
• unity-metaball unity-metaball

Transitions

• gl-transitions :thumbsup: The open collection of GL Transitions https://gl-transitions.com/
• ScreenManager Flexible way to manage screens with transitions for Unity

Mesh Cut

• cross-section create a cross section through meshes
• UnityScreenSpaceBoolean Screen Space Boolean Implementation for Unity.
• 3DXRayShader_Unity Surface shader. Clips a Model with given plane , applies fresnel on clipped part and highlights the cross section.

PageCurl

• Unity3DBookPageCurl Page curl effect for Unity3D using native UI tools

Projector

• ProjectorForLWRP Projector component
• DynamicShadowProjectorExtensionForLWRP

Decal

• driven-decals A mesh-based PBR decal system for Unity's universal render pipeline.
• ProjectionSpray Draw spray to 3D model with Unity.
• Splatoonity Splatoon like painting in Unity 3D
• unity_coneofsightfx This project shows how to implement Commandos cone of sight fx in Unity3D.
• DMDecalBuffer Rendering decals to an offscreen buffer in URP for shader effects
• SkinnedMeshDecals An example of rendering decals on SkinnedMesh Renderers in Unity.

OutLine

• PixelBaseOutlinePostProcessing use some unity graphic API to display outline post processing.
• Outline-Effect Outline Image Effect for Unity
• Outlined-Diffuse-Shader-Fixed This is a fixed version of diffused outline shader from http://wiki.unity3d.com/index.php/Outlined_Diffuse_3
• UltimateOutline The easiest way to achieve outlines in unity.
• UnityOutlineShader Source code for Outline Shader tutorial for Unity. Detects edges in a scene using the depth and normals buffers.

Motion

• AmplifyMotion Amplify Motion was the first Full-scene Motion Blur extension for Unity
• ProceduralMotion A collection of procedural motion scripts for Unity

Portal

• unity-portal-rendering Super small example of using offscreen render targets to achieve a portal effect in Unity
• shaders-portal A showcase of shader effects to replicate portals in videogames.

Fractal

• ElectricSheep_WebGL WebGL Electric Sheep Renderer

InteriorMapping

• Unity-InteriorMapping Interior mapping shader for Unity with a sample scene.

Dissolve

• VerticalDissolve Procedural vertical dissolve shader. Highly customizable. Tweak edge color, noisiness & waviness, rim light, emission scrolling and more.

HoloShield

• HoloShield Highly customizable sci-fi shield / force field shader for Unity3D.

Glitch

• CyberPunkEffect Cyberpunk 2077 Scanning Effect

SmearFrame

• SmearFrame Unreal Engine 4 smear frame material effect
• SmokeBlur

Matcap

• matcaps Huge library of matcap PNG textures organized by color
• spherical-environment-mapping Spherical Environment Mapping GLSL Shader
• UnityMatCapShader Unity MatCap shader

EchoFX

• unity_echofx The Division ECHO fx implemented in Unity3D

Cubism

• Cubism-Shader A shader that creates a cubism effect based on voronoi segmentation in Unity 3d

Wireframe

• unity-solidwire-shader A simple shader which renders stylized wireframes while staying true (within reason) to the visual style of the Vectrex

Growth

• hedera paint 3D ivy in the Unity Editor, watch procedurally generated meshes simulate growth and clinging in real-time

VFXGraph

• HDRP-Fluvio Some early tests of FluvioFX with VFX Graph and HDRP

Compute Shader Effect

• FinalAudition A complete remake of 2005 demo "Final Audition" by Plastic

Others

• GPU-Line-of-Sight GPU Line of Sight / Field of View visualization for Unity

Tools

UE4

• UnrealEngine

Unity

• Unity

DataExchange

• Unity-AlembicToVAT Alembic to VAT (Vertex Animation Texture) mini tool
• VFXGraphSandbox Unity VFX Graph technical experiment.
• alembic Alembic is an open framework for storing and sharing scene data that includes a C++ library, a file format, and client plugins and applications. http://alembic.io/
• AlembicImporter Alembic importer and exporter plugin for Unity

Shader

• Pyramid :thumbsup: Pyramid Shader Analyzer
• shader-playground :thumbsup: Shader compilers http://shader-playground.timjones.io
• glsl-optimizer :star: GLSL optimizer based on Mesa's GLSL compiler.
• glslang Khronos reference front-end for GLSL and ESSL, and sample SPIR-V generator
• shaderc A collection of tools, libraries and tests for shader compilation.
• ShaderConductor ShaderConductor is a tool designed for cross-compiling HLSL to other shading languages
• graphicsfuzz A testing framework for automatically finding and simplifying bugs in graphics shader compilers.
• ComputeSharp A .NET Standard 2.1 library to run C# code in parallel on the GPU through DX12 and dynamically generated HLSL compute shaders
• ShaderDebugger C++ library for debugging HLSL & GLSL shaders
• Shader HighLighting: HlslTools nshader ShaderlabVS

ShaderToy

• glslViewer Console-based GLSL Sandbox for 2D/3D shaders shaders
• SHADERed :star: Lightweight, cross-platform & full-featured shader IDE
• shader-toy Shadertoy-like live preview for GLSL shaders in Visual Studio Code
• ShaderMan Convert ShaderToy to Unity HLSL/CG https://smkplus.github.io/ShaderMan.io

Visual Effects

• gaffer A open source application framework designed specifically for creating tools for use in visual effects production.
• cortex Libraries for visual effects software development

Texture

• armorpaint :thumbsup: 3D PBR Texture Painting Software https://armorpaint.org
• material-maker A procedural textures authoring and 3D model painting tool based on the Godot game engine
• Materialize Materialize is a program for converting images to materials for use in video games and similars.
• xNormal A free tool to bake texture maps ( like normal maps and ambient occlusion )
• FlowmapPainter
• Fornos GPU Texture Baking Tool
• AwesomeBump generate normal, height, specular or ambient occlusion textures from a single image
• NormalmapGenerator A simple program that converts images into normal maps
• Imogen GPU Texture Generator
• aobaker ambient occlusion baking tool
• Luminance HDR A complete workflow for HDR imaging.
• TextureGenerator 3D and 2D Noise/Texture generation using the compute shaders within the Unity engine.

Atlas

• boundary-first-flattening Boundary First Flattening (BFF) is a free and open source application for surface parameterization.
• OptCuts a new parameterization algorithm, jointly optimizes arbitrary embeddings for seam quality and distortion
• simpleuv Automatic UV Unwrapping Library for Dust3D
• xatlas:thumbsup: Mesh parameterization / UV unwrapping library. A cleaned up version of thekla_atlas
• thekla_atlas Atlas Generation Tool
• UVAtlas UVAtlas isochart texture atlas
• Cheetah-Texture-Packer High efficient and fast 2D bin packing tool
• Unity3D-TextureAtlasSlicer
• VaTexAtlas plugin for Unreal Engine 4 that makes texture atlases simpler to use with UMG system.
• RectangleBinPack Source code for performing 2d rectangular bin packing.
• pack-spheres Brute force circle/sphere packing in 2D or 3D

GPU Debug

• renderdoc A stand-alone graphics debugging tool. https://renderdoc.org
• CodeXL a comprehensive tool suite that enables developers to harness the benefits of CPUs, GPUs and APUs.
• LPGPU2-CodeXL LPGPU2 CodeXL power performance analysis and feedback tool for GPUs
• perfdoc A cross-platform Vulkan layer which checks Vulkan applications for best practices on Arm Mali devices.
• agi Android GPU Inspector
• gapid Graphics API Debugger by google
• microprofile embeddable CPU/GPU profiler
• vogl OpenGL capture / playback debugger by valve
• apitrace Tools for tracing OpenGL, Direct3D, and other graphics APIs
• GPUVis GPU Trace Visualizer
• Remotery Single C file, Realtime CPU/GPU Profiler with Remote Web Viewer
• BuGLe BuGLe combines a graphical OpenGL debugger with a selection of filters on the OpenGL command stream.
• Other: gDEBugger, NVIDIA Nsight, Microsoft PIX

SDK&Tutorial

API Samples

• DirectX-Graphics-Samples This repo contains the DirectX Graphics samples that demonstrate how to build graphics intensive applications on Windows.
• directx-sdk-samples This repo contains C++ samples from the DirectX SDK updated to build using the Windows 8.x SDK or Windows 10 SDK
• Zombie-Direct3D-Samples June 2010 SDK updated to build with the latest version of Windows and Visual Studio
• IntroductionToVulkan Source code examples for "API without Secrets: Introduction to Vulkan" tutorial
• VulkanTutorial
• Vulkan
• vulkan-sdk for android
• nvpro-samples NVIDIA DesignWorks Samples
• NVIDIA Direct3D SDK 11
• NVIDIA Direct3D SDK 10
• NVIDIA Direct3D SDK 9
• NVIDIA GameWorks Graphics Samples GameWorks cross-platform graphics API samples

Book Code

• d3d12book Sample code for the book "Introduction to 3D Game Programming with DirectX 12"
• OpenGLInsightsCode
• GraphicsGems
• GPUZen
• ray-tracing-gems
• jgt-code Code developed for articles in the "Journal of Graphics Tools"

Graphic SDK

• GodComplex
• GPUOpen-LibrariesAndSDKs
• GPUOpen-Effects
• NVIDIAGameWorks
• opengl-es-sdk-for-android
• powervr-graphics

Graphics Awesome

• graphics-resources a list of graphic programming resources
• awesome-graphics Curated list of computer graphics tutorials and resources
• awesome-vulkan A curated list of awesome Vulkan libraries
• awesome-opengl A curated list of awesome OpenGL libraries, debuggers and resources.

Book&Tutorial

• thebookofshaders
• ShaderTutorials Shaders For People Who Don't Know How To Shader, a tutorial series for beginners!
• ekzhang/graphics-workshop Learn computer graphics by writing GPU shaders!

Animation

• ozz-animation open source c++ 3d skeletal animation library and toolset
• acl Animation Compression Library
• cal3d Askeletal based 3d character animation library written in C++ in a platform-/graphic API-independent way.
• GPUSkinning
• Animation-Texture-Baker Animation Texture Baker for Unity
• UE4_MotionMatching- Early Implementation of Motion Matching tech
• skeleton-builder
• hazumu Raytracing Skeletal Animation
• ssds An implementation of Skinning Decomposition with Similarity Transformations (I3D2018)

ML

• AI4Animation Character Animation in Unity3D using Deep Learning and Artificial Intelligence

Bone

• uSpringBone High performance SpringBone using ECS and JobSystem in Unity.
• UnityChanSpringBone UnityChan Sping Bone System for lightweight secondary animations
• SPCRJointDynamics 布風骨物理エンジン
• EZSoftBone A simple kinetic simulator for Unity, you can use it to simulate hair/tail/breast/skirt and other soft objects
• dem-bones An automated algorithm to extract the linear blend skinning (LBS) from a set of example poses

IK

• SimpleIK Unity Inverse Kinematics made easy

Skin

• DQ-skinning-for-Unity DQ-skinning
• dem-bones An automated algorithm to extract the linear blend skinning (LBS) from a set of example poses

Particle

• XParticle
• Effekseer This software is a particle effect editing tool.
• VolumetricParticles
• gpu-particles A GPU Particle System for Unity
• CurlNoiseParticleSystem Particle system using Curl Noise for Unity.

Visualization

• VTK The Visualization Toolkit