Awesome Houdini

A collection of awesome Free/Open Source things regarding the SideFx Houdini ecosystem.

Sourced from Github, Gumroad, OdForce, and miscellaneous google drive links. I've tried not to include assets which can also be found on Orbolt.

Note that not all assets may be compatible with your houdini licensce/version.

Assets
- General Purpose Asset Libraries/Toolboxes
- Categories
  - Geo/Editing
    - Generate
      - GSOPS Gaussian Splat Operators for SideFX Houdini
      - VFX Fractal Tookit Set of tools for generating fractal and generative art.
      - Isogrid Houdini SOP voxel-based generative geometry
      - ae_SVG SVG Importer and Exporter for Houdini
      - kitbash-parser 'Kitbash Parser' is a kit of tools to work with kitbash packs in Houdini.
      - Wire Builder HDA Procedural wire builder asset
      - linewriter Linewriter quickly creates lines of text geometry in Houdini.
      - Draw Stroke
      - FLAM3 for SideFX Houdini The Fractal Flame Algorithm, FLAM3 for SideFX Houdini
      - Houdarcs Houdini Architecture Assets
      - Tech Gear HDA Generate detailed cylindrical pieces. Can be useful to generate gears , bolts or details for sci-fi assets.
      - Cards to Curves SOP-level HDA to extract guide curves from hair cards.
      - Jelly Maker An HDA that turns any object or fluid sim into a jelly with bubbles in it.
      - Brick Tunnel HDA
      - Poly Expand 3D
      - Gear Builder
      - Kerning Tool Kerning typography in Houdini.
      - Curve to Rope Tool
      - GPattern Houdini plugin for seamlessly tiling geometry on the surface of another geometry.
    - Edit/Process
      - Hard Gun Box cutter like hard surface modeling tool kit
      - Microbot VDB Painter mbPainter for Sidefx Houdini is an Artist Friendly Set of Tools for interactive Manipulation of OpenVDB (www.openvdb.org) SDF Volumes.
      - Camera Culling Tool The Culling Tool takes in geometry and culls it based on a camera view, either on a single frame or a range of frames; with extra options such as the ability to keep objects based on connectivity.
      - Houdini Plugin for Mesh Reparation An artist-centered tool to repair meshes with holes. Such holes are filled with coherent, context-aware new patches with correct topology and microsurface detail. This tool is packaged as a Houdini Digital Asset, making a user-friendly, integrated plugin for Mesh Reparation.
      - Inspect Node Data SOP-level HDA for storing, retrieving, and inspecting parameters from nodes.This node uses a Dictionary Attribute to store parameter data from the Attribute from Parameters SOP and retrieve it for inspection. This is useful for storing data about how a cache was generated when wedging values.
      - Wrap Defromer The wrap deformer provides an alternative approach to Houdinis point deform. The wrap deformer will search for proximity to the driver meshes closest position on the primitive surface and interpolates from the full surface matrix of their respective points.
      - PCA Dejitter The PCA Dejitter Node allows you to Remove Jitter from an animated Geometry using Principal Component Analysis.
      - Houdini Principal Curvature A Houdini DSO that extracts the minimal and maximal principal curvature directions from geometry.
      - Houdini Transform Matcher A Houdini DSO that extracts the transform between two sets of points.
      - Blend Geo Blend geometry with a displaced version of it. It has the option of combining masks and setting a range/falloff from those mask.
      - Phong Deformer Houdini SOP implementing phong deformation
      - Texture Stamp Interactive texture stamping & projection tool for Houdini 20
  - AI
    - Stable Houdini Stable Diffusion Houdini Toolset
    - MLOPS Machine Learning Toolset for Houdini
  - KineFx
    - Kinefx Tools Collection of rigging tools and utils for Houdini Kinefx
  - Advanced Math
    - AVL Advanced function library, written in VEX language for SideFX Houdini. Now in development.
    - Houdini-x4d Assets for working in 4d space in Houdini.
    - Gear Logic Framework for mechanical logic circuits for Houdini
    - Houdini Matrix Library Library for large linear operations with VEX in Houdini.
  - Misc/Util
    - HMT Houdini Music Toolset (HMT) turns the most powerful 3D program into a MIDI sequence
    - Houdini-Telegram-Notifier Send messages to Telegram chat directly from SideFX Houdin
    - Hou_bg_renderer Render any renderable node in background.
    - Auto Cache Out Tool Auto Cache Out tool is for managing caches and .hip files. The tool will lay down all the important nodes you need to cache out and when you render it will create the directories and automatically version up your caches and files.
    - Texture-synthesis-houdini Houdini / PDG plugin for EmbarkStudios' texture-synthesis.
    - Re-time Solver Intuitive, "squash and stretch" style retiming
    - Houdini Tech Art Challenge Winners 2021 HPaint, Polyline Creator, Poly Slice Tool, and more
    - Color Palette Ramp A Houdini HDA that creates a ramp based on a color palette from an image.
    - VR Houdini Camera VR Viewport Camera Utility for Houdini
  - Pipeline/PDG
    - Firehawk PDG Tools A houdini package to aid PDG submission with auto-versioning, asset handling, and immmutable timestamped hip files for reproduction of content.
    - Nagamochi_PDG This is a TOP HDA library for SideFX's Houdini. There are some nodes for Maya, but those nodes are not perfect because I am not close to Maya. I'm looking forward to your advice!
    - Houdini PRTROP
  - Rendering/Materials
    - HoudiniSD SubstanceDesigner Nodes for Houdini
    - Aces Converter Converts textures to ACES color space, as seen in Toadstorms Guide.
    - egMatLib Material Library for Houdini Mantra, Redshift and Arnold
    - egRedshiftTools Tools for Redshift in SideFx Houdini
    - egMantraTools Tools For SidefX Houdinis Mantra Renderer
    - Lookbox Look dev tool suite for Mantra
    - Redshift HDRI Creator Create/edit HDRIs
    - Bayer Dithering COP
  - Solver/Sim
    - Point Based Growth HDA Houdini point based growth Asset.
    - Path Solver HDA Path Solver is a Houdini Digital Asset solving points/objects along any path without them intersecting each other.
    - Dune Solver
    - Diffusion Limited Aggregation Create fractal like growth inside 3D geometry using the principle of Diffusion Limited Aggregation. The implementation has been done in three parts: Text and 3D Geometry and Intersection
    - Wiggly Spacetime Constraints for Deformable Objects in Houdini
    - H_ML_CASTLES ML Supported Procedural Castles in SideFX Houdini using PyTorch
  - Wrangles/Code
    - OpenCL Wrangle COP This operator allows you to run an OpenCL kernel as part of your COP network. Depending on the GPU, some operators can be orders of magnitude faster than even VEX.
    - CPP Wrangle This Houdini node allows you to write wrangle nodes in C++ instead of VEX.
    - Nvidia Warp Houdini Exposes NVIDIA's Warp framework to Houdini.NVIDIA's Warp provides access to running high-performance kernels either on the CPU or GPU, all with the convenience of writing the code in Python.
    - GSS Call Python Houdini Asset for Running a Python Script within a specific Python Environment
  - Environments
    - Palladio Palladio enables the execution of CityEngine CGA rules inside of SideFX Houdini.
    - Catacomb A procedural dungeon generator in Houdini.
    - Houdini Geospatial Tools Tools for geospatial exploration in Houdini (ipython notebooks + GeoJSON python library)
    - Houdini TaleSpire Terrain Generation Toolset A toolset to procedurally create terrain for TaleSpire in Houdini.
    - River Procedural Tool Houdini procedural tool for creating rivers
    - JZTrees Houdini procedural vegetation generator and FX toolkit
    - Nature Tools Scripts assets for creating procedural forest
    - treegen Vegetation Generation Tool for Houdini. The Digital Asset implements the space colonization algorithm by Runions et al (2007). The asset can be used to easily produce natural tree structures allowing control over the growth by shaping the roots, the foliage and the way the tree fills up the space.
  - Volumes
    - HNanoSolver Houdini GPU Fluid Solver powered by NanoVDB
    - Pyro Shader for Redshit, ARnold, Renderman
    - Houdini-Plugin-for-Tensorflow-Smoke-Stylization Tensorflow implementation of Style Transfer for Smoke Simulations. Created as part of ETH Zurich Student Summer Research Fellowship
    - Sparse Pyro Upres The sparse upres solver is a deeply modified sparse pyro that allow the user to quickly upres a smoke simulation from simple inputs
    - Wind and Turbulance HDA Creates wind and turbulence data to transfer into Dops to get better results than the "Gas wind" node.
    - Volume DICOM SOP This operator allow to open DICOM data in Houdini and operate them as volumes.
    - Houdini Atmopshereic Tookit Toolkit by Kate Xagoraris for everday cloud / volume operations

Tools/Extensions
- Development
  - Houdini_TDK Tool Development Kit for SideFX Houdini
  - Help Card Maker A tool to create easily help cards for your digital assets.
  - tk-houdini A Shotgun Pipeline Toolkit Engine for Houdin
- I/O
  - Nvil-houdini-link AppLink that allows for quick geometry interchange between Houdini and NVil.
  - Hou2Drive Upload current Houdini file to a linked Google Account.
  - Daz2HouNeo Daz Studio to Houdini Processing Tools (with Arnold)
  - Houdini 2 AE Tool for exporting camera and locators fromH oudini to after effects
- UI
  - Gamestuff Houdini interface game engine.
  - Misc
    - hpaste Simple plain text snippet exchange for Houdini.
    - Houdini Package Manager A comprehensive GUI package manager for Houdini. Manage all your plugins and create new packages with ease.
    - Vex Snipfuzz Houdini shelf tool: fuzzy search a text file containing VEX snippets and paste into selected wrangle node
  - Panels
    - Houdini-Keyframe-Breakdowner Python panel for Houdini to easily add inbetween poses to animations
    - Womrhole Content Browser The Wormhole Content Browser is a custom UI for Houdini that enables quick browsing, previewing, and importing of content into Houdini.
    - Vex Snippet Library Python Panel utility for creating, storing, and accessing vex snippets in Houdini.
    - Marking Menu Marking Menu for the Houdini network editor. Fast access to node creation, placement, toolscripts, and shelf tools
    - Houdini Image Browser Python Panel file browser with thumbnail database
    - Asset Browser A qt asset browser for applications like houdini/nuke/maya/blender
    - Houdini-Rig Control Library Python panel for fast create control shape for rig
    - Houdini Bookmarks Houdini Bookmarks is a Houdini Python Panel aimed to help organize a scene by bookmarking and quickly accessing nodes, online references and file locations.
  - Parameters
    - MASSEParmUtilities Easily setup control parmaters
    - ftrimify Houdini parameter menu extension to add ftrim() around ch() and chs() references.
    - Houdini EditParms Small tool for multiple parameters editing.
    - HoudiniExprEditor Houdini Expression Editor allows you to set up an external text editor for all type of expressions. Such as Vex snippet, python code, HScript. It uses a system of file watchers to keep track of code updates in real time. It doesn't freeze Houdini and you don't have to close your editor to see the updated code applied on your parameter. Also compatible with custom Python SOP nodes source code.
  - Viewport
    - Houdini Subdiv Isolines Display Render hook for drawing subdivision surface isolines in the viewport.
- Hip File
  - Hip Meta Stripper Strips metadata from your hip files.
- Misc
  - hou_packager A simple SideFX Houdini package manager. It lets the user to easily "install", disable or delete any (ready) Houdini HDA libraries.
  - Houlean This Houdini plugin allows you to use Lean 4 as a scripting language/replacement of VEX. This plugin is highly experimental!
  - MLHoudiniSamples Samples for Machine Learning on Houdini.
  - Houdini Muzzle Houdini wrapper to start the application with special preferences
- Rendering
  - hdBlackbird A USD/Hydra RenderDelegate plugin that adds support for the Blackbird renderer (a fork of the Blender Foundation's Cycles renderer) to any client.
  - Houdini Shader Converter Houdini Python Shelf tool for Converting Shaders within Houdini using JSON
  - Houdini CopyToFram This script provides a window in which the user is able to select a directory to copy the current file and it´s dependencies to a different, arbitrary location (e.g. a network storage). In this process the script will copy all linked/referenced files to the chosen location as long as they are below the current workspace.
- Scripts and Development Tools
  - Null Between Bones Creation of 'Null' nodes between all selected nodes (e.g. 'Bone' nodes). Useful for creation of controls for rigging.
  - cmhbenjamin/Houdini Scripts Flipbooksettingssaver/pointAttributeHistogram assets.
  - JoseZalez/Houdini Scripts Library of houdini scripts and tools (VEX, Python, OpenCL).
  - dynamite Tool for a streamlined bake cage creation in Houdini.

Learning Materials

HIPS
- junichirohorikawa - Houdini Howtos
- Atom Tutorial Hip Library
- Nitzan Tregerman Community Projects
- dchow1992 - Example Hips A collection of interesting hip files / techniques to use as examples or reference: https://vimeo.com/dchow1992
- Presentation Houdini Vis Houdini files of visualizations from my presentation "Place like I do! Example-based procedural placements in a dialogue system"
- Rich Lord Tools Various HIP files from CG/VFX/Houdini artist Rich Lord, including Growing Prints, RBD Scatter, and more
- Utilizing NumPy and NetworkX in Houdini for linear algebraic computations and path finding In these example files, we are gearing Houdini Python nodes to work with NumPy and NetworkX for path-finding and aggregation of environmental analyses in a generative design process.
- Assorted Houdini Demos Toy projects
- Educational Hips Houdini setups with a lot of comments and descriptions.
- Eetu's Lab Od force thread with many examples.
- Atom's Link Page
- Applied Quaternions Some Houdini Files to demonstrate how to work with quaternions.
- Mantra LPE Cookbook Contains recipes for making commonly used render passes using LPE.
- Free VDB Clouds Pack of 3 cloud VDBs for large Ariel views.
- Fix Particle Stepping
- Robotic Arm Kinefx Demo
- Assorted Houdini Demos
- houdinicr
Vex
- Houdini Attributes Cheatsheet
- Kuchavo/Vex-Snippets A collection of useful VEX snippets for Houdini.
- Jtmori/Vex Tutorial 📑 A collection of code snippets and examples showing syntax and capabilities of VEX language inside SideFX Houdini
- Vex and Hscript Reference Reference notes for using VEX and HScript in Houdini
- Houdini Git Structure make Houdini hip gitable. parse hip file to generate structure for git record. Houdini hip 檔案解析生成資料架構，以便 git 管理。
- John Vensson Vex Snippets
- One Minute Vex
- YuriyAndropov/VEX
- Vex and HScript Reference
- Houdini Vex Basic 3D Geometry Basic Geometry built with VEX
- Houdini Vex Mandelbox
- Houdini Vex Butterfly Curve
- Houdini Physical Simulations Notes and code snippets used to create volumes, oceans, fluid and more inside SideFX Houdini
- OlegAleks/VEX Everyday code snippets
- Houdini-Tricks Various Houdini tips and tricks
Scripting/Dev
- Houdini ICPP An additional layer on top of the Houdini inlinecpp module that makes writing, debugging and distributing Inline-C++ modules easier.
- Houdini Vex Help VSCode extension that mimics the behavior of the wrangle nodes "open help from selected text", but directly in vscode.
- VEX Houdini addon for Sublime Text
- Houdini Package Runner Tooling to analyze or perform actions on Python code in Houdini package
- HIP Collector A Houdini script which collects a .hip and it's file references into a single portable directory It can resolve file references with variables such as $HIP, $JOB, $OS and file sequences ($F / $F4 etc)
- Pyqt Ui Gen Tool Create initial code for UI inside DDC applications (Houdini/Maya)
- pyhapi Object-Oriented Python Wrapper for Houdini Engine's C API. Note that this is 3rd party binding, not official.
- HoudiniHelpToComment About A PYTHON script which auto populates every NEW node comment with its documentation headline
- VSCode Vex Houdini VEX Support for VSCode
- HoudiniGenerateAllNodes A simple PYTHON script which populates the whole scene with all the nodes available in Houdini.
- Auto Controller Rig Houdini script for processing FBX rigs.
- Camera Morphing Houdini
- Houdini Silent Install ScriptAutomatically (silent) downloads and installs latest Houdini build. Good solution for studio pipeline!
- Emacs Houdini Vex Mode Emacs autocomplete for VEX.
- Sublime Debugger Houdini This adapter serves as a "middleman" between the Sublime Debugger plugin and a DAP implementation for python (debugpy) injected into Houdini.
- Hapi-rs Idiomatic Rust bindings to Houdini Engine C API
- Hapi-sys Raw Rust bindings to Houdini Engine API
- Huilib A minimalistic Python wrapper for Houdini native UI script
- Houdini Docker An automated workflow for containerizing SideFX Houdini installations with Docker
Misc
- Jtmori - VFX Goodnight Reading📚 Curated collection of good reading about VFX and CG
- Houdini NodeShape Converter Convert SVG paths to Houdini JSON nodeshapes.
- Houdini Manage Qt GUI and Command-line to manage Houdini libraries
- wranglegist Submit snippet parameters to Gist feed from within Houdini
- FaceCaptureX Get iphone X face motion data then make animation in Houdini.
- Data Driven Procedural Generation Collection of Papers on Data Driven Procedural Generation
- OpenGl OpenGL 3 and 4 with GLSL
- Elna Command Line Interface for visual effects project and asset management. It also has a Houdini project management tools with an ability to publish Otls.
- houdini2vr Preview your Houdini mono/stereo VR renders in VR headset. This tool takes displayed image plane in Render View pane and displays it in your VR headset.
- Houdini Tricks Tumblr Assorted Houdini tips and quick tutorials
YouTube/Vimeo Channels
Blogs/Personal Sites

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Awesome Houdini

Table of Contents 📚

Assets

General Purpose Asset Libraries/Toolboxes

Categories

Geo/Editing

Generate

Edit/Process

AI

KineFx

Advanced Math

Misc/Util

Pipeline/PDG

Rendering/Materials

Solver/Sim

Wrangles/Code

Environments

Volumes

Tools/Extensions

Development

I/O

UI

Misc

Panels

Parameters

Viewport

Hip File

Misc

Rendering

Scripts and Development Tools

Learning Materials

HIPS

Vex

Scripting/Dev

Misc

YouTube/Vimeo Channels

Blogs/Personal Sites

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