Large White Area on Skin in Render (help)
frederictrudel
Posts: 5
Hello everyone! Here's hope someone can help me with this new problem.
I did all the updates yesterday on Daz and my character is now showing this large white spot on her leg in renders. It's always at the same place and it never did that before. I tried changing outfits and surface stuff like that but nothing worked so far. I'm looking for your knowledge, please :) Here's an image of what I'm talking about.
Thanks! :)
Untitled-1.jpg
507 x 315 - 155K
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Comments
That might well be a relfection of a light source - how is the scene being lit?
The scene is just an open scifi bedroom lit with the default scene light. Here's the finished render done weeks ago compared to a quick one done right now. I tried without the scene too (just the character) and the white spot is still there.
I tried to change outfits, rotate the character, change character skin, nothing seems to be working. This started to happen yesterday, after I updated everything in Daz.
Here's my rendering options
This looks like it's being caused by the way the new version of IRay, that's included in the new version of DAZ, handles emmissive surfaces in combination with opacity. If you put a background of some kind, you'll be able to see that the laser beam coming from the gun is much different now.
Emmissive surfaces and opacity? IRay changes happened?
Is there a way to fix my renders like an option to go back to the way it worked before the update?
Lots of threads here about it. Basically there was a flaw in the way Iray used to work and now NVIDIA fixed it to be much more realistic. Again if you put a background behind it, especially the same background since that will be easiest to see what the difference really is, you should be able to adjust the Lumens and the Opacity in the Surface Pane to get more or less the same effect.
If I start a new character from scratch (loading a new actor), the problem seems to fix itself.
Is there a way to "reload" my existing characters to fix this or will I have to recreate them all slider by slider? They have loads of stuff and add-ons on them so this could be a long process is why I'm asking.
Select your custom character in the scene pane.
On the main toolbar click
File>Save as>Shaping Preset
If DS doesn't find it on it's own, you will need to navigate to the right place.
use My Library>Presets.
That should be found in Documents>Daz 3D>Studio>My Library>Presets
Unless it's been moved somewhere else.
Once you've made a save there DS seems to remember the location.
I would suggest taking to time to make a new folder in there (right click and New>Folder)
Name your folder so you can keep your custom characters sorted out.
Had I started that when I first started DS I wouldn't have had to sort thru hundreds of custom characters a few weeks ago to get them all organized.
You can also do
File>Save as>Character preset
Which saves the shape and materials.
Gemerally the change to opacity-luminosity interaction will weaken light, not strengthen it.
That's what I would think too, but it's lined up so perfectly that it looks like it's coming from the laser beam. Certainly would not be the first time I've been wrong. It's also really hard to tell what's happening when comparing a cropped completed render including background with a cropped very incomplete render that doesn't have a background. Kind of looks like the first picture may have the headlamp turned on, which could also explain it. That could also explain why creating a new scene with a new character wouldn't show this problem.
The only fix I found was to take an older version of the character on another render and update her to the new stuff and it's fine now.
It had to be some sort of glitch of something wrong I did in the newer file during renders.