# Spatial Fragmentations 3.0 > Procedural Modelling with SideFX Houdini This workshop is a sequel to the Spatial Fragmentations Workshop series. We will dive deeper into Houdini and utilize its full potential to create complicated models. This workshop targets advanced users and will therefore extensively exp… ## At a glance - Format: On-demand course - Price: €85.00 (list €100.00) - Difficulty: Advanced - Duration: 8 Hours - Schedule: Sep 6-7, 2025 - Instructors: Mümün Keser - Categories: Architectural Design, 3D Modeling - Software: SideFX Houdini - Students: 32 - Rating: 5.0 / 5 - Canonical: https://paacademy.com/course/spatial-fragmentations-3-0 - Enroll: https://paacademy.com/course/spatial-fragmentations-3-0 --- ## About this course Spatial Fragmentations 3.0 is an advanced Houdini course on PAACADEMY that teaches procedural modeling using Volume-based geometry, VEX coding, and simulation techniques for architectural design. Over two days, participants build a complete workflow from base geometry generation through VEX-driven growth simulations, spatial fragmentation for room definition, and reactive facade generation using For-each loops and KineFX. Basic Houdini interface and node-based workflow experience is required. ## What you'll learn - Learn to construct complex workflows in Houdini that can be adapted to various architectural contexts. - Gain hands-on experience with Volume-based modeling techniques for generating and deforming geometries. - Understand and apply VEX coding for custom vector fields, growth simulations, and attribute-driven facade generation. - Explore node-based procedural modeling and surface functionalities in Houdini. - Discover techniques for finalizing and exporting geometries for use in other software or rendering pipelines. - Develop the ability to create procedural applications and models with countless variations tailored to specific tasks. ## Methodology This workshop aims to provide participants with the skills to utilize Volumes effectively and VEX coding interfaces embedded in Houdini, not only to enhance details in various forms but also to create and deform geometries. Participants will also learn to use VEX to create custom-guided vector fields to drive growth simulations and attribute-driven Facade generation. Through hands-on experience, participants will gain an understanding of node-based procedural modeling in Houdini and develop insight into a range of geometry and surface-based functionalities. Comprehensive instruction on VEX, for-each loops, and other various built-in Houdini functions will be provided. In addition, techniques for finalizing and refining the geometries created to prepare them for exporting or rendering in other software will be demonstrated. Participants will explore different approaches they can integrate into their workflows for specific tasks and realize how much control they have over the design process. Through procedural techniques, they will discover methods for creating geometries with countless variations. By the end of the workshop, students will be able to develop their own procedural applications and models that can be adapted to different tasks and applications. Ultimately, participants will recognize the importance of careful planning and design not only for the project but also for the workflow itself. ### Program: Day 1 - Lecture – General Overview of the Workshop - Session-01 – BASE GEOMETRY – Volume-based spatial Design generation to serve as a base Geometry for further workflows - Session-02 – BACKBONE – Vex-based Growth Simulation to add Structural depth - Assignment Day 2 - Session-03 – CELLS – Spatial Fragmentation Setup to define Spaces that can be seen as Rooms - Session-04 – SKIN – Reactive Facade generation with the help of For-each Loops and KineFX - Q&A and Recap - Project-oriented discussion and reviews ## Requirements - Basic familiarity with Houdini’s interface and node-based workflow is required. - If you are completely new to Houdini, we recommend completing our [beginner-level Houdini course](../../course/houdini-for-beginners-101) before joining this workshop. ## Curriculum ### Session 1 - Intro + PAACADEMY Updates (05:25) - Interactive Facade Kinematic Systems (30:12) - Houdini Volume Modeling Workflow (31:12) - Voxelization for Procedural Facades (44:57) - Panelization, Flows & Stability (49:27) - Color Fields Guide Growth (48:07) - Path Networks to Interiors (50:01) ### Session 2 - Cells & Interactive Facade (49:13) - Interactive Facade Panel Rotation (41:31) - Procedural Adaptive Facade Components (42:31) - Procedural Linkage Design Systems (30:14) - Procedural Design Across Scales (48:32) - Geometry Export Workflows (39:23) ## FAQ ### Is this workshop suitable for beginners in Houdini? This is an advanced workshop. Participants are expected to have basic familiarity with Houdini’s interface and node-based workflows. If you're new to Houdini, we recommend starting with the Houdini for Beginners 101 course first. ### What’s the main focus of this workshop in terms of technical skills? The workshop focuses on advanced procedural modeling techniques using Volumes, VEX coding, and simulations specifically tailored for architectural design applications. ### Will I learn how to export my Houdini models for use in other software? Yes. The workshop covers techniques for refining and finalizing geometries and demonstrates how to export your work for use in rendering or modeling pipelines outside of Houdini. ### Do I need to install Houdini before the workshop? Yes. Software installation is not part of the workshop. All participants must have Houdini fully installed and ready to use before the sessions begin. ### What kind of architectural outputs can I expect to create? You’ll build complex, data-driven geometries such as spatial growth simulations, vector field-driven forms, and facade systems that can adapt to different tasks and be customized for endless variations through procedural logic. ### How is VEX used in SideFX Houdini for architectural design workflows? VEX, short for Vector Expression, is Houdini's low-level programming language embedded directly into nodes such as Wrangles. In architectural workflows, VEX is used to write custom logic that controls how geometry is generated, modified, or driven by attributes. This includes creating vector fields that guide the direction of growth simulations, generating attribute-driven facades where surface properties respond to spatial data, and controlling for-each loops that iterate over geometry components. Unlike visual node systems, VEX gives precise per-point or per-primitive control, allowing designers to generate complex geometric variation that would be difficult to achieve through nodes alone. ### What does Spatial Fragmentations 3.0 cover across its two days? Day 1 begins with a general overview followed by two sessions: Session 01 focuses on Volume-based spatial design to generate a base geometry, and Session 02 introduces a VEX-based growth simulation to add structural depth through a backbone system. Day 2 continues with Session 03, which sets up a spatial fragmentation system to define room-scale cells within the geometry, and Session 04, which covers reactive facade generation using For-each Loops and KineFX. The workshop closes with a Q&A recap and project-oriented discussion and reviews. ### Is Spatial Fragmentations 3.0 suitable for beginners in Houdini? No. This workshop is explicitly designed for advanced users. Participants are expected to have basic familiarity with Houdini's interface and node-based workflow before joining. The sessions move quickly through Volume, VEX, and simulation techniques without covering foundational concepts. PAACADEMY recommends completing the beginner-level Houdini course first for anyone new to the software. This third edition of the Spatial Fragmentations series assumes participants are ready to go beyond introductory workflows and explore the full procedural depth of Houdini. ### What will I be able to build after completing Spatial Fragmentations 3.0? By the end of the workshop, participants will be able to develop their own procedural applications and models that can be adapted to different tasks and architectural contexts. Specifically, participants will have built a Volume-based spatial geometry, a VEX-driven growth simulation, a spatial fragmentation system defining room-like cells, and a reactive facade driven by attribute logic. Beyond these specific outputs, participants will have the technical foundation to plan and design both the project and the underlying workflow, and to generate geometries with countless variations through procedural control.