You can access a full-featured version of V-Ray for 30 days by signing up on the Chaos V-Ray Trial page . This trial includes all premium features, such as GPU rendering and the Hydra delegate for Solaris, with no watermarks during the evaluation period.
While "free download" for premium software often leads to risky third-party sites, the safest and most reliable way to get is through official channels that offer legitimate trial and educational access. Official Ways to Get V-Ray for Houdini 19 Free vray for houdini 19 free download
Chaos Group provides clear, legal pathways to download and use V-Ray for Houdini without an upfront cost for evaluation or learning. You can access a full-featured version of V-Ray
V-Ray for Houdini is highly optimized for the procedural workflows introduced in version 19 and later: Students | Chaos Education Official Ways to Get V-Ray for Houdini 19
While Houdini itself has a free Apprentice version, be aware that it does not support third-party renderers like V-Ray due to its lack of Houdini Engine support. Key Features for Houdini 19 Users