WTH????? Iray magic? Me stupid?
222Thread Activity
Pushee-RiFri, Jun 12
DoroThee237Fri, Jun 12
Pushee-RiFri, Jun 12
EverwildThu, Jun 11
RadkresThu, Jun 11
Pushee-RiThu, Jun 11
I've already worked on a few projects with RFN (Rigid Follow Nodes) - but despite all my Iray experiments, what you see below has never happened to me. I'd really appreciate your help 
In the image, you can see (from left to right) the texture preview, the Iray preview, and the rendered image. Take a look at the earring in the last image: it's suddenly rotated in a way that isn't visible in the previews. Strange... really very strange. Here's some additional information: I first imported the earring .obj, rotated and positioned it slightly, and then saved it as a prop. Then I loaded the prop, created RFN surfaces, parented the prop to the RFN, and adjusted its alignment a bit more (position, rotation, etc.). The whole thing is saved as a wearable.
Can you imagine what I (or Iray) botched up there?


In the image, you can see (from left to right) the texture preview, the Iray preview, and the rendered image. Take a look at the earring in the last image: it's suddenly rotated in a way that isn't visible in the previews. Strange... really very strange. Here's some additional information: I first imported the earring .obj, rotated and positioned it slightly, and then saved it as a prop. Then I loaded the prop, created RFN surfaces, parented the prop to the RFN, and adjusted its alignment a bit more (position, rotation, etc.). The whole thing is saved as a wearable.
Can you imagine what I (or Iray) botched up there?

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From what i gathered on a quick search (cause i haven't used RFN before), you can try unparenting and reparenting or export/import.
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Pushee-Ri
Karma: 50,373
Wed, Jun 10Thanks for the tip (which gave me a cold sweat):
That would have been 6 (!) objects that I would have had to process (the project includes G9, GF8, and GM8). However, the error comes from a completely different source (see below)
That would have been 6 (!) objects that I would have had to process (the project includes G9, GF8, and GM8). However, the error comes from a completely different source (see below)
Since the earring is made of metal, the hair, being electrostatically charged, attracts the earring. The creators of the Iray rendering engine thought of everything!
Guy the physicist
You should take my answer for what it is: a joke
Guy the physicist

You should take my answer for what it is: a joke

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Pushee-Ri
Karma: 50,373
Wed, Jun 10Hey - the earring isn't made of metal, but of plastic (which would actually support your theory even more 
The root of all evil, however, lies elsewhere (see below)

The root of all evil, however, lies elsewhere (see below)
Just a wild guess: is the hair colliding with the earring due to a push modifier/deformer or collision setting? Maybe you want to test it with either another hair or another earring, if the problem is caused by either of them you may find it out that way. OR a very basic one: does it deform because the earring is not for the Generation of Character you are using? I had a similar problem with some freebie earrings.
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Pushee-Ri
Karma: 50,373
Wed, Jun 10Thanks for the tips 
The crux of the matter, however, lies elsewhere (see below)
'I had a similar problem with some freebie earrings.'
I suppose we shouldn't blame the earring manufacturer, but rather the designer of the model ...

The crux of the matter, however, lies elsewhere (see below)
'I had a similar problem with some freebie earrings.'
I suppose we shouldn't blame the earring manufacturer, but rather the designer of the model ...
Inadvertent use of timeline? Modifications made at one frame; but rendered occurred in another?
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Pushee-Ri
Karma: 50,373
Wed, Jun 10Timeline? What's a timeline??? 
Honestly - I don't even use that thing for my dForce simulations
Still, it's a nice and interesting tip... but unfortunately, it's the wrong one (see below)

Honestly - I don't even use that thing for my dForce simulations
Still, it's a nice and interesting tip... but unfortunately, it's the wrong one (see below)

Another guess.. something to do with figure render resolution
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Pushee-Ri
Karma: 50,373
Wed, Jun 10Unfortunately not. That would have been something I could have explained to users, and they could have fixed it by following some instructions. The solution is much more... 'interesting', if you will call it that (see below)
Thanks so much to everyone who gave me tips above 
But the problem isn't with Iray, nor with the render resolution (SubD). The hair isn't the issue either. The same goes for the skin and the G version.
The solution is (drumroll and fanfare TaaTaTaTaaaa):
THE MODEL (sic) !
As you can see in the top two rows of the image, the G9 earring behaves exactly as intended and designed on the G9 models. In the bottom row are the errors (including what I would call DAZ bugs)
3rd row left:
With non-proportionally scaled models, the earring rotates. However, this isn't a big deal, since I've set and saved the pivot point (center of mass) for the object so that it rotates on the hook rather than around itself. This means users can identify the issue and fix it themselves (with some hints in the readme). By the way: this doesn't happen with proportional scaling of the model (see Mae - the model with the charming smile, (two-thirds the size of the original)
3rd row center/right:
not the skin, not the hair, not the mesh resolution (subD) - It's the model itself (DAZ Shop) that shifts the earring... and, surprisingly, not in the Texture/Iray preview, but during rendering! DAZ magic at its finest
That's too bad, since there's no way to explain or correct the mistake... and I was planning to use that model for my earring promos. Well - at least now I know I'm not quite as stupid as I felt yesterday


But the problem isn't with Iray, nor with the render resolution (SubD). The hair isn't the issue either. The same goes for the skin and the G version.
The solution is (drumroll and fanfare TaaTaTaTaaaa):
THE MODEL (sic) !
As you can see in the top two rows of the image, the G9 earring behaves exactly as intended and designed on the G9 models. In the bottom row are the errors (including what I would call DAZ bugs)
3rd row left:
With non-proportionally scaled models, the earring rotates. However, this isn't a big deal, since I've set and saved the pivot point (center of mass) for the object so that it rotates on the hook rather than around itself. This means users can identify the issue and fix it themselves (with some hints in the readme). By the way: this doesn't happen with proportional scaling of the model (see Mae - the model with the charming smile, (two-thirds the size of the original)

3rd row center/right:
not the skin, not the hair, not the mesh resolution (subD) - It's the model itself (DAZ Shop) that shifts the earring... and, surprisingly, not in the Texture/Iray preview, but during rendering! DAZ magic at its finest

That's too bad, since there's no way to explain or correct the mistake... and I was planning to use that model for my earring promos. Well - at least now I know I'm not quite as stupid as I felt yesterday


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Look For a Projection Morph Had this happen to my Ear rings too with figures that use them Daz Has a Projection Morph Manager to control this effect.
https://www.daz3d.com/projection-morph-manager
https://www.daz3d.com/projection-morph-manager
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Pushee-Ri
Karma: 50,373
Thu, Jun 11Thanks for the tip 
Unfortunately, there are two issues:
* The earrings are intended to be a commercial product (at a low price).... so I can't really give advice on a product that costs 5 to 6 times as much as my project
* The linked product focuses on objects with fit-to (auto-fit). However, that’s not the case with my earrings, since they’re set up as Rigid Follow Nodes (i.e., they weren’t rigged)
Nevertheless, thank you very much for your interest and your time

Unfortunately, there are two issues:
* The earrings are intended to be a commercial product (at a low price).... so I can't really give advice on a product that costs 5 to 6 times as much as my project

* The linked product focuses on objects with fit-to (auto-fit). However, that’s not the case with my earrings, since they’re set up as Rigid Follow Nodes (i.e., they weren’t rigged)
Nevertheless, thank you very much for your interest and your time

Everwild
Karma: 9,974
Thu, Jun 11The description for the morph manager says "Compatible with all items that are auto-fitted to figure." Do you have any idea if it would help with hair assets that kink (roughly in the same area as the earrings), especially when fitted to youth morphed figures? Currently, I have to unfit them, parent them, then shape and fit them manually.
Pushee-Ri
Karma: 50,373
Thu, Jun 11@Everwild
'Sorry, that was supposed to be @Radkres, not you, Pushee!'
Thanks for pointing that out… I would have felt a little overwhelmed trying to come up with a response
'Sorry, that was supposed to be @Radkres, not you, Pushee!'
Thanks for pointing that out… I would have felt a little overwhelmed trying to come up with a response

Radkres
Karma: 1,627
Thu, Jun 11Well It Depends as not all Figures give this problem just the "Special " Buggy Figures that made it through Quality Control.
I have used it to fix Elf Ears in Hair But as with anything from Daz You have to be Aware that sometimes The Help they Give is Less Helpful.
Sorry I Can't Tell You if it will fix Your Hair it Worked on my Ear ring problem and Elf Ears.
I have used it to fix Elf Ears in Hair But as with anything from Daz You have to be Aware that sometimes The Help they Give is Less Helpful.
Sorry I Can't Tell You if it will fix Your Hair it Worked on my Ear ring problem and Elf Ears.
The solution is really simple:
Just create a project using the same technique (Rigid Follow Node, RFN) and release it as a freebie

That way, people interested in the commercial projects can first test whether their favorite model works well with the earrings.
Life can be so simple, right?
https://www.renderhub.com/pushee-ri/creoles-zero-earrings-for-genesis-8-and-9
Just create a project using the same technique (Rigid Follow Node, RFN) and release it as a freebie

That way, people interested in the commercial projects can first test whether their favorite model works well with the earrings.
Life can be so simple, right?
https://www.renderhub.com/pushee-ri/creoles-zero-earrings-for-genesis-8-and-9
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DoroThee237
Karma: 17,655
Fri, Jun 12Life is simple when some people do their best to simplify it for us!












