Render problem with Turbulent Tail Hair for Genesis 3 and 8 Female(s)
Justin_Ames
Posts: 167
Hi everyone!
I bought the gorgeous hair: https://www.daz3d.com/turbulent-tail-hair-for-genesis-3-and-8-females
I let it render for 48hours and somehow this is the result. Which look pretty bad compared to the promo images of what the hair are supposed to look like. Did I do something wrong for it to look like that? I tried spot render, it got a little better but not much at all. The best result I could get is this one.
It's the first time something doesn't wanna render correctly like that. The Turbulent tail hair are the only object I ever had a problem with.
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Comments
Is it droping to CPU, if you are normally able to render on the GPU?
What is CPU and GPU ?
When I click on ''Render'' it doesn't give me such options. It just renders.
The Advanced tab of render Settings will show what it is set to use, the log file will show - at the end, once the render is done - what was used - Help>Troubleshooting>View Log File.
Not sure what my panel says so I took a screenshot. It looks like it uses both or something.
Yes, both are enabled - but that doesn't havea lot of memory, so it probably will drop out and leave only the CPU (which is much slower) in many cases. Check the log file after rendering (you can cancel early) to see if that is the case.
Okay, did it. But I don't understand anything it says or what I'm supposed to do... I took a screenshot again.
That bit at the top of the screenshot where it says "rend info : CPU: using 12 cores for rendering" means it's using the slower option. This is probably because your scene uses more memory than your graphics card has.
So what does that mean?.. That I will never be able to render the hair?
Which version of daz Studio is this - Help>About Daz Studio?
Version 4.21.0.5 Pro Edition (64-bit)
There's an uptade available for it but I don't dare install it in fear of the new version being so different I might not be able to use DAZ anymore. I'm just starting to get use to it. I don't wanna have to start all over again and re-learn how to do everthing.
Just to backtrack a bit, are you using the OOT Hairblending Shader (it should load with the hair)? It is a special shader with specialized functions, and cannot be used with hair shader presets other than its own. Your render has a very white hair colour, which is not included with the product. Did you alter it somehow by changing some of the parameters? There are a lot of them, so it is easy to make a mess if you are not familiar with them. Try applying one or more presets that come with the product and see how it renders.
Try just the base colours at first, to keep it simple. The hairblending adds a second colour and a transition map between the two. In this case, there are presets to turn ON and OFF the blending. In your render, the main body of the hair seems a little transparent, but with excessive highlights on the individual stray hairs (Back, Bangs2, Front2, and Side2). Try hiding them (Geometry->Cutout Opacity to 0.0) to see if they are the source of the bright streaks.
I used the material color preset from the texture expantion for the turbulent hair https://www.daz3d.com/texture-expansion-for-turbulent-tail-hair
I'm not sure to understand what a shader is, but all I know is that the color I used is called ''material'' and not ''shader''. (I took a screenshot to show you)
Also, I keep looking everywhere, but I can't find that ''Geometry'' option you're mentioning to cutout opacity. Where do you find it?
Okay, I didn't check the texture expansion. Applying one of those should be okay.
A Shader is the engine that actually generates the pixels using the supplied parameters. The current shader is displayed at the top of the Editor tab in the Surfaces pane. The Material presets supply all the parameters needed for the shader to basically generate the pixels with the right properties (colour, transparency, etc.). (There are also Shader Presets, which are like Material presets, but are not mapped to a specific geometrical area). You don't have to worry about the process, as long as you are using compatible Shaders and Material presets.
The Opacity Cutout is exposed in the Surfaces Tab. Each separate surface has its own set of parameters, in related groups. Expand one of the surfaces, and you will see a group called Geometry. Select it. Cutout Opacity will be in the list on the right. (Make sure "Show Sub Items" is checked, or else expand the Geometry Group). Move the slider to 0.0 to hide that surface. It will not appear in renders unrtil you set it back.
I see. Thank you for the explanation. It's a good thing I used a preset material in that case.
Found it, thank you! I just made a quick render to test it out and it looks a lot better without the individial stray hairs. Your help was greatly appreciated! The hair looks perfect now
thank you so much!
Yes, that is better. I think the expansion has some settings that are too high for the strands. Try comparing a base material preset with a similar one from the expansion to see if a setting or two is very different. Those stray hairs add a lot of realism to the renders, it would be a shame to have to remove them.
Unfortunately, even the base material preset of the hair is doing the same with the stray hairs..
I think it has something to do with the version of Iray in that version of Studio. I am using 4.22.1.48 beta (not the latest), but I do not get those blown-out highlights. Try tweaking some values that might tame them, like those under Base->Diffuse and Base->Glossy, or Top Coat if the Hairblending is enabled.
I just tried and put every glossy settings at 0 and I still get the same result
..
Translucency, maybe? I'm sure I read about too-bright strands, but long ago, like maybe a year?
I know you said you were reluctant to update Daz Studio in case it didn't work, but there is a way to go back to a previous version if you use DIM. Make a copy of your current installers for Studio and any matching numbered plugins (i.e., DAZ Studio 4.21 (Win 64-bit), Measure Metrics for DAZ Studio 4.21+ (Win 64-bit), Photoshop 3D Bridge for DAZ Studio 4.21+ (Win 64-bit), etc.) (if you have not yet downloaded the update) from the download folder.
Download and install the new version to try it out. If you want to go back, put DIM offline, copy or delete the new version (you might want to keep it for later, because you will never be able to get it again), and copy the old version back into the download folder. Refresh DIM and you should see your previous version ready to install.