Ideas

Please add Energy Conservation on Refractive materials.

It's a tool that works very well on other platforms like Cinema4D and 3Ds Max. I see that it could add a lot to the V-Ray workflow in Blender.

Add Overscan feature, allowing you to expand the image above the specified resolution.

Corona had released a Fabric Material in Corona 14, its really neat and it will be very helpful to have it in V-Ray too. Please consider to integrate in next update.

Integrate Blender's ability to create node groups that can be instanced in different materials and saved as assets for frequent use

V-Ray Volume Grid is a special kind of volumetric effect that works with grid-based cache formats, compared to Environment Fog which is a general purpose volumetric effect. The Volumetric Grid reads its data from an input file which supports grid-...

Please consider adding an officially supported native V-Ray for Blender version on Linux. Linux is widely used in professional production pipelines, but the lack of V-Ray support forces many artists to stay on Windows despite preferring Linux for ...

Pursuing of ability to choose the best workflow for different heavy tasks and situations of our Workflow. I would strongly recommend giving us the ability to change the output of 32-bit EXR like Single-Layerd EXR with different compression - espec...

A dedicated Tiles generator like Bercon Tiles/Corona Tiles but built for V-Ray, Compatibility with BerconGradient or dedicated gradient map to create more complex tiles

Ability to use VrayDecal as a scatter element with ChaosScatter, and or ForestPack and RailClone. (like CoronaDecal works with ChaosScatter). We could have finally a way to texture bomb about anything on anything.