Adaptive DomeLight is great!

[kosso_olli]

I just made some tests in V-Ray Next, especially with the adaptive domelight. I have to say that apart from that square artifact bug, it works like a charm! From what I have heard the artifact bug is already fixed.

This render in 6000x4500px took 2h43mins in Next, and 2h49mins in 3.6.04. Default settings for both.
Not much speed improvement, but look at the noise levels! That is insane! If I crancked up the settings in 3.60.04 to match the results of Next, I would need way more time.
So, great work!

Left is Next, right is 3.60.04





Regards

Oliver

[kosso_olli]

And some more images.

[Richard7666]

The images are a bit too small to be able to discern much difference? I can see brightness differences but not much noise difference.

[kosso_olli]

Really? On my monitors the difference is easy to spot. In general, look at the dark areas. In the first set of images, right below the switches, in the second set right below the steering wheel. You can't miss it actually. Next is much much cleaner.

[dean_dmoo]

I couldn't see it on my mobile, but on my monitor it's really obvious. Are you going to do a test with the same noise amount for both versions to see how much faster it is in time?

[anthonyh]

Speed wise, is this CPU vs CPU or vs GPU ?

[kosso_olli]

This is all CPU, for both versions of V-Ray.

[andy51]

I totally agree with kosso_olli the addition of the Adaptive Dome light is one of the best features of VRay Next, when it comes to reduction of noise. As they say, not a huge speed improvement but, for me at least, the vastly reduced level of noise, is a far more important consideration, than the speed

[glorybound]

Yeah, I still can't use it for interiors, because I get the square artifact bug, too. Is the fix in the nighties?

[andy51]

Square artefact bug? Not heard of this one before, nor have I noticed any strange artefacts in any of my interior renders, can you explain, show an example.

[glorybound]

You can see it in the photos posted above (3rd image, first post). It's a dark render, so it is a little hard to see, but it is there.

[andy51]

Well, from what I can see, people are using incorrect workflows with their scenes and since V-Ray is supposed to be smarter to help produce faster, cleaner renders, I guess you need to make sure you aren't "cheating" or trying to get the adaptive dome light to do fix stuff which is physically inaccurate.. Until then maybe switch to the normal dome light and wait longer for a clean image.. My thoughts on such things, are that to many people, in a rush to get a project finished or wanting to get a result that is not exactly based on reality or having pick up bad habits over the years...cut corners, do things that are physically wrong, add lights where there would be none etc and while (most of the time) that got the job done in the past, I imagine V-Ray Next with it's Smarter workflow, was designed to do things correctly and is being tripped up by inaccurate scene setups, using features that while they may have been handy in the past, are not something the adaptive dome light is designed to cope with... Sure it would be good for a few people, if they fixed it so you could bend the rules and still get a good result, but for me, that would just make for a less realistic result and who knows, it could also slow the adaptive dome light feature down, basically making the whole point of having it, rather meaningless. I'm not going to even attempt to correct whatever it is you are doing wrong to get these artefacts, but from what little I have read in another thread on the subject of this so called bug, most of you are bending the rules in some way, doing things that are incorrect, that you have done for who knows how long and some of you are going to have to go "cold turkey" to break those habits.

It's a bit like someone saying "I can drive as well as anyone else, after all I passed my test. Isn't that proof enough?".. . but we all know how many bad habits almost every driver picks up during their years driving on the road, They start off cautious, constantly watching everyone else, checking their mirrors, signalling correctly etc, but as time goes by, they relax more and more, paying less and less attention, driving becomes second nature, like they don't even have to think any more, then it starts.... forgetting to check their mirrors or maybe not signalling in time or at all and their reaction times slow. So while they may well get safely from A-B, every day, just as everyone else does, maybe for years, maybe for their entire life behind the wheel, the majority are still bending or breaking the rules and eventually a few will end up paying for certain habits they have picked up. However that shoudn't mean we change things so that those rules can be bent or broken by everyone, without consequences, if we did that, we would eventually have total chaos on the roads, nobody would be safe, death rate on he roads would sky rocket. Hopefully you understand what I am trying to say here

[glorybound]

I don't have the time to read your entire post (I am running out), but it is a known bug reported before Next was released. Vlado said that they are working on it.

[kosso_olli]

It is caused by some objects not casting shadows. It is a standard situation in automotive visualisation, and by no means an unplausible cheat. It has to be fixed, and Vlado said they have a solution already.

[vlado]

For some reason I just now see this; would it be possible to get me a scene with the artifact to vlado@chaosgroup.com ? I want to make sure it is fixed.

Best regards,
Vlado