Ah… yeah… the Rhino Render… don’t get me started 
Nathan made an excellent Cycles render plugin too, that didn’t make it to Rhino 6 as default, but you can install it through the hidden and also great _TestPackageManager:
Great for larger than screen renderings. But @nathanletwory does this support Denoiser too? If not, could you update it so it does? Together with supporting Raytraced view that would be awesome!