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I hope somebody know what is to do...

The problem is that when the samplinglevel reach a level nearly 6,... the picture lose light and contrast,...I tried everything
I have done a lot of tests,...from MXI Emitter to SSS, only with the physical sky,only skydome,...only one emitter,...with more complex scenes and with simple scenes,...etc.etc... I think it is a problem in the render engine like Tyrone Marshall said...so here is is a SSS test with the preview, and a simple one,...in both there is the same problem,...for example the simple scene gets the problem at SL 5.75 and the other at SL 6.02...in both scenes the previw is always the same,...the problem is only visible in the picture but not in the preview window,...




cu jurX

This is not a problem jurX01.
Up to SL 7, the renderwindow shows some kind of accelerated preview.
What you see dimmed is the actual state of the ongoing calculation, don't worry.

I used to worry about this but the light comes back in later.

YOu will get the same as the previe with longer rendering.

IT looks like it suddenly goes dark but it will brighten up as more time passes to match the preview.

It should be about your scene and/or setup Oliver.
Otherwise, this is not a fault as we all know.

Hmm..?

Usually its back by sample 12 with my stuff.

I guess I'm not really sure now.

It's not logical to compare preview with the real simulated result.
Unfortunately, preview isn't being calculated in the same way.

thX all.. .I was just wondering because this was not always,....so I made some tests,...there I saw that the brightness/contrast comes back after a higher samplinglevel,... this is maybe no problem but it have to be fixed,...I hope NL will fix that in the next versions, because sometimes for fast managerial decisionsa a fast rendering is good enough but not flat like this,...so I do what Adam Trachtenberg meens,....I have to wait for the render to develop...thX again for your infos...

Well what you can do when you come back and see that the render has changed in appearance, just play with the settings in the mxi viewer....before taking the pic into PS. Since you're working on the mxi directly you can really make some radical changes.