Rendering time for single image is very very long

Bradmc

Hi, I am completely new to 3D design and have just started working with daz as my first program and I am kind of curious if the time I am experiencing for rendering is normal. I am trying to render 2 characters with no cloths or hair in basic sets like the ruins which I think I came with daz and using a couple spot lights and rendering is taking more than an hour. I was trying to use the godray item from the store and it was only 5 percent after 45 minutes so I completely gave up with that. These are on basic resolutions as well, around 1080. Optimally, for my purposes I need much higher resolutions and I am hoping I didn't just blow 500 bucks in the store when I don't have the hardware to handle it. I tried deserting CPU in the advanced tab in rendering settings and as soon as I started it drove my CPU up to 98 percent anyhow. Is there some things I should be changing in the default settings that I might not be aware of? Ryzen 1700x base clock Gtx 1070 16mb ddr4 2333mhz Windows 10

Richard Haseltine

In an enclosed space you will not eb getting any contribution to the lighting from the HDR image, so your two spots are the only light source. That means that a lot of areas will be relying on bounced light to illuminate them, which means that it will take a lot of light path samples to get them filled in and eliminate the noise. That would certainly make for slow progress, but it doesn't explain why the ernder is dropping to CPU (I assume your 1070 will have 8GB of RAM, which should be enough for the scene you describe unless something is very high polygon or there are huge textures applied). You might check Window>Panes(Tabs)>Scene Info to see how many polygons your scene is using - if there are two numbers separated by a slash it's the larger that matters.

Mescalino

Your PC is fine. (wish my 1070 had 16GB in steadd of  8GB) Do you have GPU checked on both instances under your iray render settings?  The scene you describe should take 5 mins maybe 10 to render on your machine. double to triple on cpu.

Are you sure you have the latest drivers?

Bradmc

Richard Haseltine said:

In an enclosed space you will not eb getting any contribution to the lighting from the HDR image, so your two spots are the only light source. That means that a lot of areas will be relying on bounced light to illuminate them, which means that it will take a lot of light path samples to get them filled in and eliminate the noise. That would certainly make for slow progress, but it doesn't explain why the ernder is dropping to CPU (I assume your 1070 will have 8GB of RAM, which should be enough for the scene you describe unless something is very high polygon or there are huge textures applied). You might check Window>Panes(Tabs)>Scene Info to see how many polygons your scene is using - if there are two numbers separated by a slash it's the larger that matters.

I'll check the poly count in the morning. I have a correction as well for my earlier post, I am using the secret garden pack not the ruins pack. The secret garden pack has that rigged ivy which I assume might be hard on the system I was ding some forum scouring and I came across somebody mentioning leaving old render windows open keeps the memory on the card allocated. Do you know it it is true? When I got to the point last night where I was trying to fully complete a render to 100 percent, I had several windows open of partially completed ones. Something else I will try in the morning. I still have all the scenes saved so I will try to render a few without any extra windows open. Is there any software or function in daz you can recomend where I can monitor my GPU usage?

Bradmc

Patrick, Yep drivers up to date. I only have the 8gb, I meant 16gb ram.

Richard Haseltine

Bradmc said:

Richard Haseltine said:

In an enclosed space you will not eb getting any contribution to the lighting from the HDR image, so your two spots are the only light source. That means that a lot of areas will be relying on bounced light to illuminate them, which means that it will take a lot of light path samples to get them filled in and eliminate the noise. That would certainly make for slow progress, but it doesn't explain why the ernder is dropping to CPU (I assume your 1070 will have 8GB of RAM, which should be enough for the scene you describe unless something is very high polygon or there are huge textures applied). You might check Window>Panes(Tabs)>Scene Info to see how many polygons your scene is using - if there are two numbers separated by a slash it's the larger that matters.

 

I'll check the poly count in the morning. I have a correction as well for my earlier post, I am using the secret garden pack not the ruins pack. The secret garden pack has that rigged ivy which I assume might be hard on the system I was ding some forum scouring and I came across somebody mentioning leaving old render windows open keeps the memory on the card allocated. Do you know it it is true? When I got to the point last night where I was trying to fully complete a render to 100 percent, I had several windows open of partially completed ones. Something else I will try in the morning. I still have all the scenes saved so I will try to render a few without any extra windows open. Is there any software or function in daz you can recomend where I can monitor my GPU usage?

Yes, open render windows continue to consume memory as it is possible to resume the render (even if it has "finished" you could edit the progressive settings to let it run a bit longer).

Yes, I would think that the Ivy may well be pushing up the memory use too.

GPU-Z is what I use from www.techpowerup.com

Bradmc

Thanks a bunch Richard, I'll problem solve what was discussed when I get home and check out that software.

fastbike1

BradMC's 1070 doesn't have 16GB Vram, the CPU has the  16GB. 

patrick.dewijs said:

Your PC is fine. (wish my 1070 had 16GB in steadd of  8GB) Do you have GPU checked on both instances under your iray render settings?  The scene you describe should take 5 mins maybe 10 to render on your machine. double to triple on cpu.

Are you sure you have the latest drivers?

 

Bradmc

So problem solved. Downloaded the GPU software, tried to render a few different scenes and it all ran stickly on my GPU as set up in the advanced rendering options.Render times are good now. I am guessing the issue was not closing all the previous renders. I assume I am not the first bonehead to do this so hopefully other newbies see this thread if they are having the same issues and it helps them.

 

 

Thanks!