19 Free Download — Sidefx Houdini

Everything is a node, allowing for easy iteration. Installation & System Requirements

You cannot use Apprentice to create assets for paid commercial work. Watermark: Renders include a SideFX watermark. SideFX Houdini 19 Free Download

High-performance solver for hair, fabric, and soft bodies. Pyro FX: Realistic fire and smoke simulations. Everything is a node, allowing for easy iteration

32GB minimum, 64GB recommended for fluid/particle simulations. Everything is a node

If you are looking for free tools with commercial capabilities, you might consider:

Rendering is limited to a maximum resolution of 1280x720. Key Features & Why Learn It