VRay RT vs. VRay - 3d Noise bump difference

V-Ray for 3ds Max V-Ray for 3ds Max :: General
1

I was using VRay RT for initial look dev. I was using Noise map in 3D coords.
In RT, The detail of bump was amazing.

BUT, when I render with VRay, all the fine details were gone.

Anybody know why there is a difference?
How can I get the same detail in actual render?

Thanks in advance.

2

Can you show your Noise settings?

Best regards,
Vlado

3

This is radius 100 sphere with default Noise map(Turbulance).

RTvsVRaynose.jpg
RTvsVRaynose.jpg960×1076 138 KB

4

I see; what are your AA settings for the production renderer? The closest equivalent to what the RT engine does is “Adaptive DMC” image sampler with filtering turned off.

Best regards,
Vlado

5

Tried “Adaptive DMC” image sampler with filtering turned off, but no difference.

I wonder it is because Noise map output only 8bit information?