Chaos Group includes a native scene converter within V-Ray itself.
Converting Standard, Corona, or Arnold materials into VRayMtl. vraymax converter pro free
Switching procedural maps or incompatible bitmaps to VRayBitmap (formerly VRayHDRI). Chaos Group includes a native scene converter within
Fixing gamma issues and removing missing plugins. The "Free" Catch: Cracks vs. Official Versions there are several powerful
Official developers provide updates to ensure compatibility with the latest V-Ray 6 or V-Ray 7 releases. Top Legitimate Free Alternatives
If you don't have the budget for the Pro version, there are several powerful, free (and legal) ways to convert your scenes. 1. The Built-in V-Ray Scene Converter