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V-Ray Tutorial - Studio Lighting (3ds Max) -- PAGE 5
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At this ponit of the workflow it is very important to find the balance between speed and quality.
I will talk about the settings globaly, because some problems can't be solved
with only changing the value of an option.
So lets see the Renderer tab in this light :)

-Change the resoultion to 900x500
-Set the Adaptive rQMC image samplers min dubdiv to 2.
Now thinner lines can be rendered correctly.
-Change the preset of the Irradiance map to Medium from Low.
Set 50 to the HSph subdiv to achive higher quality GI.
-Use value 1200 for the Light cache subdiv.
Change the Sample size to 0,006 ,now small details will be more visible.
Use value 1000 to the Pre-filter option to reduce noise.
We have a lot of glossi rays so check the "Use light cache for glossi rays"
option./it will speed up rendering/
For the Filter use the "None" possibility.
-At the rQMC sampler use value 0,005 for noise treshold.
Set the Global subdivs multiplier to 4 ,it will increase samling quality
everywhere in the scene.
-You can find the Light properties in System>Lights settings.
Changing the diffuse subdivision of the lights wil effect the number of
the traced photons.
-Change all the vraylights subdivison to 15 or 20 to avoid noisy parts.
-Change all the materials subdivs to 20 in the Reflection section.
With these settings the rendertime will increase a lot according to test render settings.
Now hit F9 and wait until the calculation finishes.

This is the final rendering, no noise ,artifacts or any nerve-racking rendering trouble.
A picture would not be complete without the postwork so lets move on.

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