render setup causing light patches and noise

[srishtichoudhuri]

Hello Guys, I am SRISHTI and im an aspiring designer, im new to this forum, this is my first post anyhow I have been using vray 3.0 on 3ds max 2014 since 5 months and I get this problem a lot. I try to solve it as best as I can but I don’t understand and how it came to be in the first place.

 

I think its called ”noise in light”, "light patches” and “noise” in general, creating a very dirty render even when my noise threshold is at 0.005 or 0.001. This render took 2 hours 30 minutes on my MSI GE62VR 6gb NVIDIA 1060 Graphic card on a 16 GB ram. And I have used Adaptive Subdivision at -1 and 2 as well as 3 and 4, the shading rate is 2 with a catmull rom filter. All lights are at 16 samples in light modifiers.

 

Gamma And lut setup is aligned according to 2.2 linear multiplier both in colour mapping and setting window. under G.I. Primary engine is irradiance map at high and light cache at 1300. I feel I have set all important things to max yet I get this awful result. So it would be a huge help if you could guide me on why this is happening and how to rectify it.

 

Im attaching a both the render images that I took below . I have an interview in 2 weeks and this is my vehicle showcase and I need to get it to a presentable point so any help would be appreciated. Thankyou.