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© 2025 Daz Productions Inc. All Rights Reserved.
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There's a new version of Iray with major changes in the current betas, so my guess is that it's a "backup your general release now if you don't want those changes" announcement.
Well, I suppose we will find that out when we see the version number of the next release.
A release candidate is a version the developpers think is ready enough to make into a general release but is released as a beta for a last round of tests. Sometimes there are multiple release candidates before the general release because bugs were discovered during the RC tests.
Anyway, a beta for DS5 would not be distributed as a version 4.x. The code base is completely different.
I'll be a little less coy with the next version number of Daz Studio, it's going to be another release in the 4.x series of releases. Not a 5.x.
The Studio 5 project is still ongoing but as tasks were completed we discovered more and more tasks that needed to be done, so instead of ghosting you all with no releases for a year or two we are continuing to work on Studio 5 while also working on adding more into Studio 4.
As far as what features are in this release, well, it's all in the changelog. If you want a better and more understanable version you can wait for the marketing team to write something up that looks nice and probably with some cool screenshots when it actually releases. I'm not going to try and steal their thunder here.
Well, thank you! Now it is clear. All this terminology around candidates and versions and releases ... all very confusing but now you have put it in plain language.
A bit of a sad tale regarding DS5 though ... years? Surely not? I'm getting very old.
I'm not getting any younger either ;)
Thanks Richard, I'll do that.
I'd apply, but I don't know if I could endure the wrath of the forum users!![wink wink](https://www.daz3d.com/forums/plugins/ckeditor/js/ckeditor/plugins/smiley/images/wink_smile.png)
most of my forum wrath is directed elsewhere, the developers of the backend are not losing my pists![wink wink](https://www.daz3d.com/forums/plugins/ckeditor/js/ckeditor/plugins/smiley/images/wink_smile.png)
but only if I can actually post and not get the Cloudflare working and basically DAZ isn't page![devil devil](https://www.daz3d.com/forums/plugins/ckeditor/js/ckeditor/plugins/smiley/images/devil_smile.png)
No, that is the "old" ghost light that doesn't work in 4 16.1.X. I'm asking about the "new" ghost light "supported" implementation for 4 16.1.40.
...it was interesting that in the version of Iray before the ghost lights stopped working, the top coat issue also didn't occur.
This is serious, as it affects pretty much most character skins and hair. that use top coat settings. Those settings were part of the content for a reason and it is particularly a pain for those who use Skin Builder, other skin creation resources as well a hair colour/texture resources such as those by Slosh and others.
I am not the only one who has run into this.
This situation needs to be taken up with Nvidia and a fix offered as right now it breaks something very basic that should not be broken.
For now it means having to stay behind with an older verion of the programme to avoid dealing with this in every scene...
For the sake of clarity, what has changed about Top Coat? (A lot of my custom skins have it off, or otherwise use unusual settings, so I've not immediately noticed a change.
I will say that the ghost light change is a bit annoying, as the new implementation (or at least what I understand that to be) has the issue that it's binary, and you now can't make a light partially opaque to stop it getting so overexposed without also interfering with the light output.
Right. I misunderstood your query. I have read posts where obviously people do not know what any form of ghost lighting is.
A "create new ghost light" feature would be great I agree. {along with with a manual for the whole program while we're at it}.
Same scene rendered with version 4.16.0.3 (left) adn 4.16.1.40(right).![sad sad](https://www.daz3d.com/forums/plugins/ckeditor/js/ckeditor/plugins/smiley/images/sad_smile.png)
Green ghost light completely dissapears.
...with some skin and hair that uses it at a certain setting, the tones com out very dark;
Attahcment 1: Daz 4.15
Attahcment 2: Daz 4.16
I've found that one of the reasons the dark skin shows up is when you tinker around with the spectral settings in the Render Settings.
For the Ghost Lights, regular Ghost Lights no longer work; you have to increase the cutout opacity to a minimum of 0.1 to get any usable light out of them, but then you'll see the ghost light as a grey-ish thing. I'm soooo excited.
You mean this change log? Uhm... yeah... lots of vital information in it...![laugh laugh](https://www.daz3d.com/forums/plugins/ckeditor/js/ckeditor/plugins/smiley/images/teeth_smile.png)
And leaving the passing on of vital information to a MARKETING TEAM????? Those people are there to hype stuff up and make barker style proclamations, to sell stuff - not to transfer vital information to the customers...![frown frown](https://www.daz3d.com/forums/plugins/ckeditor/js/ckeditor/plugins/smiley/images/confused_smile.png)
...as I understand it had to do with the top coat thin film channel The skins I create in Skin Builder tend to have a Thin Film value of 2.00 which is normal and never presented an issue in 4.14.0.30 or before.. I rarely if ever use Spectral Rendering nor no mess around with any spectral settings in the render settings tab.
I looked at the Beta Highlights thread and when I did that comparison I it was in 4.16.1.8 which used Nvidia Iray version 344800.8726. The quick and dirty fix was setting Thin Film to 0 but that slightly altered the appearance. The other fix involved installing an additional set of MDL materials however the instructions sounded a bit convoluted.
The current public release uses version 349500.7063 in which the changelog mentions improvements were made to the thin film relating to fresnel effect. I installed 4.16.1.40 and ran some render tests without changing anything and apparently that improvement corrected the issue I encountered in 4.16..1.8 of he dark skin and dark hair. .
okay i read the answer sorry for the post, it was an iray bug (a usefull one
). I hope an easy conversion trick will be available.
When you say you get no light if the opacity is less than 0.1, does mean is stops emitting light at all with an opacity of 0.0999? This would be odd behaviour.
I had read somewhere that nVidia had "fixed" the ghost lights bug by calculating the amount of light to be emitted as lumens x opacity. That would mean a ghost light with an opacity of 0.001 would emit 1000 times less light than it used to. However could this be overcome by simply increasing the lumens on the ghost light by a factor of 1000?, so that the light emitted was the same as the older iRay version. I don't have the new version installed, so I can not check this myself.
The problem with the new ghost light solution mentioned earlier in the thread is that the ghost light is still visible in reflections. This is good for things like skin, as it gives you the specularity that ghost lights lacked, however for something like a window, or a mirror, the ghost light will appear as a white square, which is not ideal. Thus, IMHO, the new solution has some drawbacks compared to older ghost lights.
a factor will be a nice workaround. If this works![crying crying](https://www.daz3d.com/forums/plugins/ckeditor/js/ckeditor/plugins/smiley/images/cry_smile.png)
Sickleyield posted recently that there is a way to make ghost lights in the new version of Iray (https://www.daz3d.com/forums/discussion/comment/7270236/#Comment_7270236). Her recent Invisilights product (SY Invisilights Iray | Daz 3D) is built using this method and will work in the new version of Iray. I'm guessing that is what is meant by 'supported' not that they are becoming native to Studio (though that would be nice).
Other current ghost light products would need to be updated using this new methodology but there has been no update on those yet that I have seen in the forums. The issue being that there would then need to be 2 versions, one for people who remain on the current version of Studio and another for those that update to this and future versions. Not sure of the chances of that happening but we can only wait and see what happens on that front.
Also waiting to see if the resourceful forumites can come up with a workaround :)
This explains why I spent hours adding ghost lighting to a scene yesterday and ended up suspecting that they weren't actually working.... I thought I was going mad. The colour tint still worked though... I had updated the Nvidia drivers just beforehand
LOL! I suggest a psuedonym.
Just did a test comparison between DS 4.16.0.3 and DS 4.16.1.40, using a section of an old scene. Latest Studio driver 511.65, GTX 1070 card.
It's correct that Luminance needs to be increased by a factor of 1000, but I don't see any difference when it comes to reflections in glass (I presume that will include mirrors?) and eye reflections. The effect on Specularity also seem to be the same. The only difference seems to be more fireflies with same render time (3 minutes for each render here), in DS 4.16.1.40.
Whether it makes any difference what NVidia card you use I can't tell though. I'd presume that it doesn't matter that it's a render originally saved from an older version of DS, but again, I'm not sure.
I ran the two version of DS on the same PC, but separately (one running, the other shut down), to avoid any possible interference between them.
I know it's been asked before, but why can't we get the option to roll-back to a previous version?
My rendering machine is a pain at the best of times. 4.14 worked perfectly. 4.15 was okay. But 4.16 is just a complete pain in the a.... I just can't seem to achieve the same results in 4.16 (like those in 4.14). :(
I'm not looking forward to upgrading to 4.16.1
Judging by the forum up-time since friday, at least I'd get the weekends off![angel angel](https://www.daz3d.com/forums/plugins/ckeditor/js/ckeditor/plugins/smiley/images/angel_smile.png)