Weird Surprise

nonesuch00

Well I spent about 4 hours setting up a fascimile of the famous Norman Rockwell painting 'The Runaway'. To my surprise when I go to render it in DAZ Studio 4.10.1.118 it takes extremely long time to render even the 1st iteration. We are talking well over an hour & not 1 iteration & I ended up canceling. It seemed DAZ Studio or the computer was spinning their wheels in some sort of idele loop. It was so slow and my computer so throttled I thought my computer CPU had developed problems.

So instead I am testing another scene that is less complex in DAZ and it rendered in the normal speed. Any clues? I guess I could try composite rendering under I find the model that is causing this behaviour.

Richard Haseltine

What was in the scene? Did you try 3Delight, which might have shown if there was soemthing interfering with the view?

fastbike1

You have three characters and a number of props. Is subD high on any of them?

What video card? How much RAM in your computer. 

jestmart

Check for displacement on any of the surfaces as this will slow Iray too (because sub-d has to be set high).

nonesuch00

There is no displacement unless it's on the cook character who is G8M default texture.

Now subD I turned up to 2 in viewport and 4 on render on each character and all their clothing. I do that habitually with no problems before. I have the classic Genesis 8 Side Part hair and Supernatural Eyebrows on two of the characters.

I think the problem is this scene must be almost exactly at the boundary of my available RAM and I need to optimize for memory instead of speed in my render settings. It is so weird how my computer is completely i/o bound yet the CPU monitor shows typically less than 10% utilization on the 4 cores, reported RAM usage is low, but DAZ Studio chugs along a long long time doing practically nothing that is visible.

I will try soon to turn down the subD on each character and their clothing first. I was had no problems with on test renders with every scene element present except the clothing, hair, & upped subD on those. I want to render it now that I went to so much trouble posing it.

nonesuch00

OK, I created a different group for People, Lights, the Diner, Camera and put everything in them so I could turn off visibility quickly. The problem was all the subD in the clothing, especially the Law Enforcement Officer's clothing with all the attached accessories. I turned subD down to 1 & 2 and it renders now. I hadn't considered the scene any more complex than other scenes I made but I guess one day I will buy a desktop with 128GB RAM & that'll be that.

Thanks.