noticing on my current evening interior of house that i am getting too much noise in my scene, Geometry is all OK and there are no dodgey materials!.
general lighting is with a PG HDRI and only a couple of lights internally, but there is clearly a lack of light causing the blotchy effects.
i want work in a LWF state, so the the HDRI is on a vray dome light multiplier 1, with the values set in the material editor so that i can see the map as i want it.
i have then setup the camera, f4, shutter 1/10, iso 100.
the light sources in the lamps are vray spheres that have lumens values of 900.
the only way i can get rid of the blotchy-ness is to FAKE with some vray plane which is what i dont want to do.
i want to keep it real, i have the render setting high for light cache and the DMC is set to 20.
i have added the day shot for interest.
cheers for the help
g