dForce High Voltage Hair Issue

draine761_c7a1098aa1

I love the look of this hair, but it's being problematic when rendered.  I can render a Gen 8 Female figure in 20 seconds.  I can render a Gen 8 Female figure with Matilda Hair in 30 seconds.  However, a Gen 8 Female figure with dForce High Voltage Hair takes 21 minutes to render.  Whaaaa..?  I tried uninstalling and reinstalling the content, but it's the same result.  I grabbed the part of the Log that indicates warnings, but I'm not technically proficient enough to interpret the data.  These warnings are not ordinarily cropping up with my renders.  Can anyone give some advice, please?  Thanks!

 

chevybabe25

Hi draine :)

This hair is rather heavy on resources.  What you can do:

in the scene tab select the high voltage cap and expand it so that you can see the high voltage base.

select the high voltage base and click on the surface tab.

select the base_layer

Scroll down to "PS hairs (per guide).  Change the number from 5 to 2.

Scroll down to "PR hairs (per guide) Change the number from 3 to 6.

This should cut down on resources and render time.

draine761_c7a1098aa1

Thanks for such a quick response.  After making the suggested adjustments, the render time is nine and a half minutes.  That still seems cumbersome for just a figure and hair.  I also own Sea Salt hair, and that renders about the same (21 minutes without adjustment).  You make beautiful looking hair, but I think I'll have to mothball it until I can afford a new computer rig to handle the load.  I can only assume the warnings on the log (same ones appear for the Sea Salt hair) can be interpreted as, "Whoa.  This is gonna take a lot of resources, ace."  I could be whining over nine minutes when other artists might tell me that's not an unreasonable render time, but it could also be that I'm the impatient type.  =)

NylonGirl

I had just about the same situation. I saw how the hair looked on that 60% Monique and basically decided right then to get it. But I didn't know it was dForce hair. I mean I didn't know it was the dForce hair that generates the hair strands after the fact rather than the hair that does a dForce simulation but doesn't increase the ram usage at render time. I knew I was in trouble when adding the hair and hitting render seemed to exceed my computer's 16 gigs of RAM and the computer went to the swapfile, and then I guess the 2.6 gigs of  "geometry" combined with everything else exceeded the video ram. I tried the suggested changes too and I think it did make everything use less memory, but I will definitely have to only use this hair when I'm willing to let the CPU render for quite some time.

N-RArts

I'm sorry, but you're grizzling about 21 minutes?! Some of us would kill love to have an Iray render done in 21 minutes... 

chevybabe25

While I understand a lot of users now are not willing to let something render for 20 plus minutes, I have been conditioned. As an old time Poser user from the early days, I remember where 6 plus hours in I had 4 lines of a render done because I made the mistake of trying to use a wall from a DM set with a naked Vicky 3.  Sigh.  I suppose it really comes down to how much you like an item, how much you really need it and how much time you are willing to dedicate to said item.   

3Diva

This hair looks amazing but sadly it kept crashing Daz Studio on me. I tried a scene with several different hair and it rendered fine in less than 5 minutes. But the second I tried to render the same scene with this hair in it, it crashed Daz Studio. I tried several times to render the scene with this hair in it but it crashed Daz Studio each time. I finally found a way to get my computer to render the hair in the scene. I selected the hair in the Scene Tab then went to Parameters >> Line Tessellation and changed the Render Line Tessellation Sides to 1.

The hair renders slightly lighter that way but it still looks good. So you might try changing the Render Line Tessellation Sides to 1 and see if that helps. After I made that change the scene rendered fine for me.

NylonGirl

For me, it wasn't a matter of waiting 20 minutes. It probably would have been more than two hours. I just avoid dForce hair in general. But this one was especially rough. I still like it though. And I might try that render line tessellation setting though it would probably be easier for me to learn a new language than to learn how dForce hair works.

chevybabe25

Well I am bummed this hair is giving you guys a hard time :(

I have started adding a "weight" to my promos so you can at least figure out which ones your computer can or can not handle.  

NylonGirl said:

For me, it wasn't a matter of waiting 20 minutes. It probably would have been more than two hours. I just avoid dForce hair in general. But this one was especially rough. I still like it though. And I might try that render line tessellation setting though it would probably be easier for me to learn a new language than to learn how dForce hair works.

Dhair is normally easy.  This video shows how to change the tesselation at 4:40.  Just make sure you change the render line tesselation and not the viewport line tesselation.

ALLIEKATBLUE

This is really a lovely hair. Daz crashed on me as well.  After the problems with desert hair, I tried it in Daz 4.11 and this rendered in about 7 and 1/2 min using all the changes from chevybaby and 3diva

chevybabe25

That looks beautiful Alliekat :)

ALLIEKATBLUE

Thanks @chevybabe25. I wonder why your most resource heavy hairs work better in daz 4.11 or 4.12

benniewoodell

I love this hair and it came out at the absolute perfect time for the lead in my animated feature. I just used the dForce and it moves very nicely as well! 

chevybabe25

I honestly have no idea.  I would take a guess that each update of Daz is just getting more and more resource intense with complex shaders etc.

Sevrin

I did a quick render with iSourceTextures Hatsumomo using the hair and didn't find it took terribly long to render.  Took up a lot of memory, though.  Pardon the hair colour, I wanted something a little more saturated and think I may have overdone it.

chevybabe25

Love it!

middle_watch

Hope this might help, had a frustrated weekend trying to render High Voltage hair, and others, baffling, even previously saved scenes would only render the hair cap. Did all the usual stuff, reboot, reload etc etc. Then noticed that my default tool each time I loaded was the Weight Map Editor, no matter how many times I restarted. Changed it to select and the renders work perfectly, switch to weight map and they fail. How odd!