vray dirt as good as occlusion texture?

[Bechstein]

Hello there,

I saw this nice image (first one) on the new modo 5.01 web presentation and it inspire me for this little test. I just want to achieve this beautifully shader effect.
In the second image i was really happy with the material settings. But ... look at the next picture. Were is the nice shader gone?
All i've done is switch from dmc imagesampler min=1 and max=4 to min=1 and max=32.
This killed the effect nearly complete.
So i call my new beautifully shader unstable. It is depending on dmc sampler settings.
Any other suggestion to archive this effect?


some more info:
gi=off
max2010x64
win7x64
vray1.5sp5

[vlado]

You need to increase the VRayDirt subdivisions to get the effect back, or use the Adaptive Subdivision image sampler.

The correct way to construct such a shader is to use VRayDirt itself directly as diffuse or reflection color texture, rather than as a mask.

Best regards,
Vlado

[Bechstein]

Thanks for your reply! Use it as a mask is the only problem? The heavy touch of the output from vraydirt with the color correction map will cause no problems? Okay. I will try that and post a test later.