Currently V-ray offers no way to choose which channels go into an EXR when we add a denoiser render element. Therefore compressed EXR's that could be a much needed 5-7mb suddenly bloat out to 40-50mb which is a massive drain on both hard drive spa...
essential tool for those who move from Corona to V-Ray and do not want to redo every single material from scratch.
In companies where both engines are used it is very useful.