Houdini VEX Programming for Beginners by Deepak Gayan

This course is built for artists who want to stop being afraid of code. You’ll start with Python in Visual Studio Code to get the fundamentals of programming down, then directly translate that knowledge into VEX inside Hini. No fluff, just a straight path from zero to writing your own attributes and loops.

🎯 What you’ll learn

• Write basic Python to understand variables, loops, and functions.
• Apply Python logic directly to Houdini using VEX.
• Master point, prim, and detail functions for attribute manipulation.
• Use pcfind, neighbours, and bbox functions for spatial queries.
• Create nested loops and manage arrays effectively.

✅ Requirements

• Skills: Basic understanding of Houdini’s interface and navigation.
• Tools: A computer capable of running Houdini and Visual Studio Code.

📝 Description

Most VEX courses assume you already know how to program. This one doesn’t. We start with Python because it’s a clean, readable language that lets you focus on logic, not syntax. You’ll install VSCode, write your first script, and work through exercises on arrays, loops, and conditionals.

Once you’re comfortable, we switch to VEX inside Houdini. You’ll learn how to use point(), prim(), and detail() functions to read and write geometry attributes. We cover for, while, and do while loops, including nested loops for complex data manipulation. The course also dives into spatial functions like pcfind, neighbours, and xyzdist, which are essential for any FX or generalist workflow.

The teaching style is direct and practical. Each concept is followed by a hands-on exercise, so you’re not just watching—you’re coding. The instructor plans to add more lessons over time, making this a living resource for beginners.

🧑‍🎓 Who this course is for

• Generalists and FX artists who want to add scripting to their toolkit.
• Houdini users who feel stuck with manual node setups and want to go procedural.
• Anyone with a basic grasp of Houdini who is ready to learn VEX from scratch.

🧑‍🏫 About the Author

Deepak Gayan is a veteran FX artist with over 13 years of experience in film, television, and OTT platforms. His career has focused on particle systems, fluid dynamics, and tool development using Python and VEX. He has built shaders and simulation tools for high-end visual effects pipelines, giving him a practical, production-oriented perspective on teaching code to artists.

🏁 Final Result

• A solid understanding of programming fundamentals applied directly to Houdini.
• The ability to write custom VEX code to manipulate geometry attributes and create procedural effects.
• Completed practice exercises that reinforce core concepts like loops, arrays, and spatial queries.