Price history
Recorded standalone sale prices and the latest available store price, in USD. Historical dots use the sale start date and its recorded offer price. Prices can change during a sale; this is not a daily price log. Bundle prices and upcoming offers are excluded. History covers up to the 100 most recent recorded offers.
Lowest recorded standalone price in this history: $41.99. The latest store price is $59.99.
View 4 recorded prices
| Sale start / price check | Price | Observation |
|---|---|---|
| $59.99 | Latest store price | |
| $41.99 | Unity New Release Discount 2026-07-30 2026-08-06 | |
| $41.99 | Unity New Release Discount 2026-07-30 2026-08-06 | |
| $59.99 | Unity First Price 2026-07-30 2026-08-06 |
Sale and bundle history
The 3 most recent recorded offers including this asset. Past offers may no longer be available. Bundle prices cover a package, not this asset alone.
About Volunex – OpenVDB & Volumetric Effects Suite for HDRP
- Tools, Systems & Learning > Development Tools & Automation
- Art & Visuals > VFX
Volunex - Advanced Volumetric Effects for HDRP
Create cinematic volumetric clouds, smoke, explosions, tornadoes, atmospheric effects, animated OpenVDB sequences, and real-time GPU fluid simulations directly inside Unity.
Volunex is a volumetric rendering and effects toolkit designed for artists, environment designers, VFX creators, and developers working with HDRP.
It combines OpenVDB conversion, Texture3D volume rendering, procedural volume generation, animated volume sequences, interactive volumetric effects, particle-system integration, and a real-time GPU fluid simulation framework in one package.
OpenVDB Importing
Import OpenVDB density volumes into Unity using the built-in Volunex VDB conversion workflow.
Features include:
Import .vdb density files
Select a density grid by name
Automatic scalar-grid fallback
Numbered VDB sequence detection
Animated sequence importing
Adjustable sequence frame rate
Automatic active-volume bounds detection
Aspect-ratio-preserving conversion
Conversion to Unity Texture3D assets
R8 density storage for practical runtime rendering
Volunex converts sparse OpenVDB grids into dense Unity Texture3D assets optimized for use with its real-time raymarch renderer.
The optional editor conversion backend uses Python, OpenVDB and NumPy packages installed through the included backend installer.
Procedural Volume Editor
Generate volumetric effects without requiring external VDB files.
Available generators include:
Clouds
Smoke
Tornadoes
Explosions
Heightmap-based volumes
Imported Texture3D sources
Available procedural noise modes include:
Perlin
Worley
Ridged
Hybrid
Create individual volumes or animated Texture3D sequences directly in the Unity Editor.
Real-Time Volume Rendering
Volunex renders volumetric density using an HDRP-compatible raymarching shader.
Rendering controls include:
Adjustable raymarch steps
Empty-space skipping
Density control
Light absorption
Edge fading
Directional lighting
Local light support
Emissive volumes
Density-shaped shadows
Shadow softness and quality controls
Wind animation
Unity WindZone integration
The system is suitable for clouds, smoke, fire-like effects, magical volumes, dust, atmospheric effects, and other volumetric visuals.
Animated Volume Sequences
Create and play animated Texture3D sequences.
Features include:
Adjustable playback speed
Sequence frame rate
Play and stop controls
Randomized sequence starting time
Frame interpolation
Runtime sequence playback
Animated sequences can be used for smoke simulations, explosions, tornadoes, clouds, and other pre-generated volumetric effects.
Interactive Volumes
Volunex volumes can react to gameplay.
The included interaction system supports projectile and explosion-style density carving.
Examples include:
Bullets passing through smoke
Temporary holes in cloud volumes
Explosions dispersing local density
Interactive volumetric gameplay effects
Automatically recovering density after interaction
Interaction strength, radius, softness, duration and recovery can be customized.
Particle System Integration
Use volumetric assets with Unity Particle Systems.
Volunex can render particles as individual volumetric instances using Texture3D density or animated volume sequences.
Create effects such as:
Volumetric smoke particles
Explosion clouds
Dust bursts
Fireballs
Destruction smoke
Magical effects
Atmospheric particles
Controls include density, absorption, raymarch quality, emission, shadows, size, and opacity over lifetime.
Destruction Effects
The included destruction smoke component can emit volumetric smoke effects from collisions or scripted events.
This makes Volunex suitable for destruction systems, impacts, environmental effects, explosions, and gameplay VFX.
Real-Time GPU Fluid Simulation
Volunex also includes an experimental real-time 3D GPU fluid simulation framework.
The simulation includes:
3D velocity fields
Density simulation
Temperature simulation
Semi-Lagrangian advection
Buoyancy
Vorticity confinement
Divergence calculation
Jacobi pressure solving
Pressure projection
Fluid emitters
Directional, point and vortex forces
Collider obstacle support
GPU raymarch rendering
The fluid solver is designed for real-time smoke and fire-style volumetric effects.
Quality presets can be adjusted according to the target hardware and required visual quality.
Fluid Simulation Components
Volunex Fluid Volume
Controls the GPU simulation and rendering volume.
Volunex Fluid Emitter
Injects density, heat and velocity into the simulation.
Volunex Fluid Force
Adds directional, point or vortex forces to the fluid.
Volunex Fluid Collider
Adds collider-bound obstacle regions to the simulation.
Included Demo Content
Volunex includes ready-to-use examples and generated test assets:
Main Volunex demonstration scene
Fluid simulation demonstration scene
Procedural cloud density asset
Animated procedural smoke sequence
Generated tornado sequence
Perlin noise texture
Cellular noise texture
Ridged noise texture
Turbulence noise texture
Radial volume mask
Plume mask
Heightmap test textures
Example materials and shaders
Editor Workflow
Volunex adds convenient tools under:
Tools > Volunex
Available tools include:
Setup
Create Volume in Scene
Procedural Volume Editor
Import OpenVDB
Fluid Simulation tools
The package is designed to provide both artist-friendly editor workflows and runtime scripting access.
Performance Controls
Volume rendering quality can be adjusted through raymarch step counts, shadow samples, empty-space skipping and density settings.
The GPU fluid solver also supports adjustable simulation resolutions.
Recommended starting fluid resolutions:
Low: 32 cubed
Medium: 64 cubed
High: 96 cubed
Ultra: 128 cubed
Start with Medium quality and increase resolution according to target GPU performance.
Requirements
2021.2.x to 6000.3
High Definition Render Pipeline (HDRP)
Compute Shader capable GPU for real-time fluid simulation
3D texture and UAV support for GPU fluid features
The OpenVDB importer uses an optional editor-side conversion backend. The backend installer downloads the required Python, OpenVDB and NumPy packages into the project Library environment.
No OpenVDB runtime dependency is required for already-converted Texture3D assets.
Ideal For
Environment artists
VFX artists
Cinematic scenes
FPS and action games
Destruction effects
Atmospheric environments
Horror games
Sci-fi effects
Clouds and weather effects
Smoke and explosion effects
Prototype and research projects
Volunex provides a flexible foundation for bringing high-quality volumetric effects and OpenVDB-based workflows into HDRP.
Create cinematic volumetric clouds, smoke, explosions, tornadoes, atmospheric effects, animated OpenVDB sequences, and real-time GPU fluid simulations directly inside Unity.
Volunex is a volumetric rendering and effects toolkit designed for artists, environment designers, VFX creators, and developers working with HDRP.
It combines OpenVDB conversion, Texture3D volume rendering, procedural volume generation, animated volume sequences, interactive volumetric effects, particle-system integration, and a real-time GPU fluid simulation framework in one package.
OpenVDB Importing
Import OpenVDB density volumes into Unity using the built-in Volunex VDB conversion workflow.
Features include:
Import .vdb density files
Select a density grid by name
Automatic scalar-grid fallback
Numbered VDB sequence detection
Animated sequence importing
Adjustable sequence frame rate
Automatic active-volume bounds detection
Aspect-ratio-preserving conversion
Conversion to Unity Texture3D assets
R8 density storage for practical runtime rendering
Volunex converts sparse OpenVDB grids into dense Unity Texture3D assets optimized for use with its real-time raymarch renderer.
The optional editor conversion backend uses Python, OpenVDB and NumPy packages installed through the included backend installer.
Procedural Volume Editor
Generate volumetric effects without requiring external VDB files.
Available generators include:
Clouds
Smoke
Tornadoes
Explosions
Heightmap-based volumes
Imported Texture3D sources
Available procedural noise modes include:
Perlin
Worley
Ridged
Hybrid
Create individual volumes or animated Texture3D sequences directly in the Unity Editor.
Real-Time Volume Rendering
Volunex renders volumetric density using an HDRP-compatible raymarching shader.
Rendering controls include:
Adjustable raymarch steps
Empty-space skipping
Density control
Light absorption
Edge fading
Directional lighting
Local light support
Emissive volumes
Density-shaped shadows
Shadow softness and quality controls
Wind animation
Unity WindZone integration
The system is suitable for clouds, smoke, fire-like effects, magical volumes, dust, atmospheric effects, and other volumetric visuals.
Animated Volume Sequences
Create and play animated Texture3D sequences.
Features include:
Adjustable playback speed
Sequence frame rate
Play and stop controls
Randomized sequence starting time
Frame interpolation
Runtime sequence playback
Animated sequences can be used for smoke simulations, explosions, tornadoes, clouds, and other pre-generated volumetric effects.
Interactive Volumes
Volunex volumes can react to gameplay.
The included interaction system supports projectile and explosion-style density carving.
Examples include:
Bullets passing through smoke
Temporary holes in cloud volumes
Explosions dispersing local density
Interactive volumetric gameplay effects
Automatically recovering density after interaction
Interaction strength, radius, softness, duration and recovery can be customized.
Particle System Integration
Use volumetric assets with Unity Particle Systems.
Volunex can render particles as individual volumetric instances using Texture3D density or animated volume sequences.
Create effects such as:
Volumetric smoke particles
Explosion clouds
Dust bursts
Fireballs
Destruction smoke
Magical effects
Atmospheric particles
Controls include density, absorption, raymarch quality, emission, shadows, size, and opacity over lifetime.
Destruction Effects
The included destruction smoke component can emit volumetric smoke effects from collisions or scripted events.
This makes Volunex suitable for destruction systems, impacts, environmental effects, explosions, and gameplay VFX.
Real-Time GPU Fluid Simulation
Volunex also includes an experimental real-time 3D GPU fluid simulation framework.
The simulation includes:
3D velocity fields
Density simulation
Temperature simulation
Semi-Lagrangian advection
Buoyancy
Vorticity confinement
Divergence calculation
Jacobi pressure solving
Pressure projection
Fluid emitters
Directional, point and vortex forces
Collider obstacle support
GPU raymarch rendering
The fluid solver is designed for real-time smoke and fire-style volumetric effects.
Quality presets can be adjusted according to the target hardware and required visual quality.
Fluid Simulation Components
Volunex Fluid Volume
Controls the GPU simulation and rendering volume.
Volunex Fluid Emitter
Injects density, heat and velocity into the simulation.
Volunex Fluid Force
Adds directional, point or vortex forces to the fluid.
Volunex Fluid Collider
Adds collider-bound obstacle regions to the simulation.
Included Demo Content
Volunex includes ready-to-use examples and generated test assets:
Main Volunex demonstration scene
Fluid simulation demonstration scene
Procedural cloud density asset
Animated procedural smoke sequence
Generated tornado sequence
Perlin noise texture
Cellular noise texture
Ridged noise texture
Turbulence noise texture
Radial volume mask
Plume mask
Heightmap test textures
Example materials and shaders
Editor Workflow
Volunex adds convenient tools under:
Tools > Volunex
Available tools include:
Setup
Create Volume in Scene
Procedural Volume Editor
Import OpenVDB
Fluid Simulation tools
The package is designed to provide both artist-friendly editor workflows and runtime scripting access.
Performance Controls
Volume rendering quality can be adjusted through raymarch step counts, shadow samples, empty-space skipping and density settings.
The GPU fluid solver also supports adjustable simulation resolutions.
Recommended starting fluid resolutions:
Low: 32 cubed
Medium: 64 cubed
High: 96 cubed
Ultra: 128 cubed
Start with Medium quality and increase resolution according to target GPU performance.
Requirements
2021.2.x to 6000.3
High Definition Render Pipeline (HDRP)
Compute Shader capable GPU for real-time fluid simulation
3D texture and UAV support for GPU fluid features
The OpenVDB importer uses an optional editor-side conversion backend. The backend installer downloads the required Python, OpenVDB and NumPy packages into the project Library environment.
No OpenVDB runtime dependency is required for already-converted Texture3D assets.
Ideal For
Environment artists
VFX artists
Cinematic scenes
FPS and action games
Destruction effects
Atmospheric environments
Horror games
Sci-fi effects
Clouds and weather effects
Smoke and explosion effects
Prototype and research projects
Volunex provides a flexible foundation for bringing high-quality volumetric effects and OpenVDB-based workflows into HDRP.