Keywords: Graphics, Volumetric Rendering, Mesh Voxel, Voxelization

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Fragments

Forums

Horizon:Zero Dawn Cloud System
https://www.gamedev.net/forums/topic/680832-horizonzero-dawn-cloud-system/

Papers

The Real-time Volumetric Cloudscapes of Horizon:Zero Dawn
https://www.guerrilla-games.com/read/the-real-time-volumetric-cloudscapes-of-horizon-zero-dawn
http://killzone.dl.playstation.net/killzone/horizonzerodawn/presentations/Siggraph15_Schneider_Real-Time_Volumetric_Cloudscapes_of_Horizon_Zero_Dawn.pdf

Real-time rendering of volumetric clouds
http://www.diva-portal.org/smash/get/diva2:1223894/FULLTEXT01.pdf

Real-Time Volumetric Rendering
http://patapom.com/topics/Revision2013/Revision%202013%20-%20Real-time%20Volumetric%20Rendering%20Course%20Notes.pdf

Stormscapes: Simulating Cloud Dynamics in the Now
https://storage.googleapis.com/pirk.io/papers/Haedrich.etal-2020-Stormscapes.pdf
http://computationalsciences.org/publications/haedrich-2020-stormscapes.html

A Voxel Generator Based on Autoencoder
https://www.mdpi.com/2076-3417/12/21/10757

Documents

High Performance Voxel Engine: Vertex Pooling
https://nickmcd.me/2021/04/04/high-performance-voxel-engine/

Mesh Voxelization
https://www.geeks3d.com/20160531/mesh-voxelization/

Realtime Volume Rendering

Documents

Interactive Path Tracing and Reconstruction of Sparse Volumes
https://research.nvidia.com/publication/2021-03_interactive-path-tracing-and-reconstruction-sparse-volumes

Interactive Graphics 25 - Volume Rendering
https://www.youtube.com/watch?v=y4KdxaMC69w

Origin:
What techniques does a software like Embergen use for realtime volume rendering? - Reddit

Source & Examples

Source & Examples - Fragments

A collection of HLSL functions one can include to use spherical harmonics in shaders. This repository can be simply be used as a submodule.
https://github.com/sebh/HLSL-Spherical-Harmonics

An OpenGL sample that demonstrates Volumetric Lighting using a frustum-aligned voxel grid and compute shaders.
https://github.com/diharaw/VolumetricLighting

A basic Volume Renderer mainly for Medical Images like CT-Scans and MRI Images
https://github.com/gallickgunner/Volume-Renderer

An OpenGL sample that implements volumetric clouds using ray marching and compute shaders.
https://github.com/diharaw/volumetric-clouds

Extremely naive implementation using 1/2 HRC model. (Holographic Radiance Cascades, Volumetric, 2D Global Illumination)
https://github.com/Yaazarai/Holographic-Radiance-Cascades

Source & Examples - Voxel

Cubiquity is an experimental micro-voxel engine written in C++ and released into the public domain.
https://github.com/DavidWilliams81/cubiquity

A simple voxel engine written from the ground up in C++ and OpenGL
https://github.com/JamesRandall/SimpleVoxelEngine

Handmade voxel engine
https://github.com/TheNumbat/Exile
https://thenumb.at/Voxel-Meshing-in-Exile/

A Lightweight Mesh Voxelization Library with OpenGL Geometry Shader
https://github.com/skanti/Mesh-Voxelization-OpenGL-Geometry-Shader

Header only mesh voxelizer in c99
https://github.com/karimnaaji/voxelizer

Triangle Mesh to Voxel using compute shaders in Metal
https://github.com/sinadb/voxels

CUDA Voxelizer to convert polygon meshes into annotated voxel grids
https://github.com/Forceflow/cuda_voxelizer

Source & Example - Cloud

Horizon Forbidden West: Nubis Evolved - Real-time Volumetric Clouds for VFX
https://www.artstation.com/artwork/RnB8Dy
Horizon Forbidden West: Burning Shores - Immersive Voxel-Based Clouds
https://www.artstation.com/artwork/8bRy3q
Nubis Voxel Clouds Pack (VDB files)
https://drive.google.com/drive/folders/1VwpzrzLQ2ghDrTR3t4TlpfmhiUT1VJ2D

Source & Examples - Quadmesh (Billboard)

Fluffy stylized trees tutorial, using quadmesh-to-billboards shader in Unity
https://www.youtube.com/watch?v=iASMFba7GeI

Quadmesh Billboard Foliage - Houdini to Unreal
https://www.artstation.com/blogs/mohamad_salame1/AyAL/quadmesh-billboard-foliage-houdini-to-unreal

Fluffy Material for UE5 - Quadmesh to Billboards (Recommended)
https://yamato3d.gumroad.com/l/UE-Fluffy-Mat

Realistic smoke lighting with 6-way lighting (Explosion) in VFX Graph (Recommended)
https://twitter.com/FavrelO/status/1634236736254386178
https://vimeo.com/806149701#_=_
https://blog.unity.com/engine-platform/realistic-smoke-with-6-way-lighting-in-vfx-graph

Source & Examples - UE5 Volumetric

Sparse Volume Textures
https://dev.epicgames.com/documentation/en-us/unreal-engine/heterogeneous-volumes-in-unreal-engine
Heterogeneous Volumes
https://dev.epicgames.com/documentation/en-us/unreal-engine/sparse-volume-textures-in-unreal-engine

Portal VDB Pack Loop. This Project contain 10 Realistic VDB 3d Portal Effects Loop
https://www.unrealengine.com/marketplace/en-US/product/portal-vdb-pack-loop

Portal VDB Pack Loop Vol 2. This Project contain 10 Realistic VDB 3d Portal Effects Loop
https://www.unrealengine.com/marketplace/en-US/product/portal-vdb-pack-loop-vol-2

Destruction Smoke VDB Pack. This Project contain 10 Realistic VDB 3d Destruction Smoke Effects
https://www.unrealengine.com/marketplace/en-US/product/destruction-smoke-vdb-pack

Cloud Forge Complete - VDB Clouds 1.4.3
https://www.fab.com/listings/944f23a3-d94e-4212-a0f2-454114c6d0f3

Assets

Assets - Fragments

Expanse - Volumetric Skies, Clouds, and Atmospheres in HDRP
https://assetstore.unity.com/packages/tools/particles-effects/expanse-volumetric-skies-clouds-and-atmospheres-in-hdrp-192456

An extensive tool to control dynamic time of day and weather settings using realistic volumetric clouds and atmosphere.
https://www.unrealengine.com/marketplace/en-US/product/sky-creator

Assets - Cloud

A large and highly detailed volumetric cloud data set, intended to be used for various purposes, including movie and game production as well as research. The entire data set is available in the “cloud” package.
https://disneyanimation.com/resources/clouds/

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