The 3.00.03 build number specifically is often remembered as a "sweet spot" release. Early builds of V-Ray 3.0 had some bugs, but the .03 update resolved many stability issues. For many studios, upgrading to newer versions (like 3.6 or 4.x) took time, so 3.00.03 became the standard operating system for projects ranging from high-end interior design to product visualization.

Set the to Irradiance Map and the Secondary Engine to Light Cache .

VRay Adv 3.00.03 features , an interactive rendering engine that runs directly inside the 3ds Max 2014 viewports or a floating ActiveShade window. In this release, VRayRT supports both CPU and GPU execution paths (via OpenCL and NVIDIA CUDA). Feature / Capability VRayRT CPU VRayRT GPU (CUDA) Primary Use Case Conceptual lighting drafts Fast look-dev, interactive preview Hardware Utilization All CPU Cores / Threads NVIDIA Graphics Cards Memory Limitation Restricted only by System RAM Restricted by GPU VRAM Material Support Near 100% parity with production Subsets of procedural maps supported