DAZ IRAY when is it done?
Dazzleme
Posts: 23
in The Commons
This maybe a silly question, but as someone quite new to daz, I just dont know the answer. When Im rendering anything. enviroment/sceene/figure in Iray, how do I "know" when the render is finished? I can hear all my cpu case and cpu fans runing like crazy.so must assume its working.but..how do I know from within daz studio its "finished"? My pc specs are I78700K, 32 gigs ram nvidia geforce 1080Ti SC...as the main components. Thanks!
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There's a window that pops up that shows progress. Yours may be minimized so check the windows in your task bar panel.
There is a "Finished" but I/we usually stop renders before they end- based on how 'usable' the image is.
See here for more info....
https://www.daz3d.com/forums/discussion/269336/do-you-often-cancel-your-rendering-process-if-you-think-it-looks-done
and mixed in is...
https://www.daz3d.com/forums/discussion/153156/who-s-been-stopping-their-renders-early
by default it has a 2 hour max limit, but simple renders may finish earlier. There is no annoucement. The "Cancel" option vanishes from the on-screen render, if you are rendering to screen. The processing pop-up vanishes. Listening for the speed of the fans to drop is as good a way as any. I use that method myself.
Thanks, I see a progress window that pops up in mid screen when its placing an object in the view pane..but..I still dont see a progress bar for the acutal render of a scene, etc...sorry to ask..but how do I acces the window/pane that would unminize the window that shows the render progress? Been searching for over an hour now...thanks!
I guess I should ask..where is the appropriate "task bar" that I can address the progress window to make sure its not minimized
Thanks so much! :)
If you can type the name of the render when you want to save it at or move the cursor in the render windows text field at the bottom of the window being rendered, it's done.
It's open (and normally not minimized but on top of the main window) as long as it is rendering but closes when the render stops. It's actually not closed though but just hidden, if you hover the mouse pointer over the DS icon on the taskbar a small icon showing the DS main window will pop up, then if you move the pointer over that icon the progress window will unhide so you can see the status of the latest render.
Eyeball test it. When the image looks done, it's done. Sometimes, after a little while, the render looks done, but the software will cheerfully grind on and on until your computer melts. You can limit time and iterations in the render settings. I usually set those on the conservative side, a few minutes and a few hundred iterations, whichever comes first. But if you're setting up complicated scenes with multiple light sources and other effects, you'll need to let those out a bit. It will depend a lot on your system configuration, too. If your renders drop to the CPU, it often takes longer.
Also, it's helpful to render 2x oversize and then downsample. ie you want 1280x720px, render 2560x1440px and downsample to desired size. That fixes the noise and interpolation problems that crop up in smaller renders and doesn't seem to add much to the render time. As with all such advice, YMMV.
^ this
@OP
When it looks good to you.
yep! take into account that iray is never finished, it keeps going till you tell it to stop or the settings you set tell it to stop.
Aside from making your own judgement call, you can use the render progress window as shown here.
Bear in mind though that there are a lot of factors that determine an actual render time, aside from the obvious "What hardware you have" there are also things in the render settings and advanced settings as well as the types of things in the scene - In this sample image, currently rendering, I have lights and fog and rain and pumped up custom settings so lots and lots going on there. It will be a while before it is done according to my custom settings.
The more you learn about all these factors the easier it will be to make that judgment call, until then you can just use the Render Progress Window.
Oh boy. So first of all, there are multiple stop conditions for a render. If the render reaches ANY one of these stop conditions, it will end the render. So even if you have a 2 hour limit, if you reach the iteration limit or convergence limits first, then it will stop right there. So there is that. If you find that your render is still grainy after finishing, then you can raise the limits of these settings to allow the render to run longer.
But like a cheap infomercial...there's more!
There are also multiple settings that effect render quality, and these can greatly impact how long the render takes, and how long it takes to "look done". And of course, the content of your created scene will as well.
And then there is denoising, which nobody else has mentioned yet. Denoising is not enabled by default, an algorithm basically fills any remaining pixels with an educated "guess" of what should go there. This can work really well, or it can work really bad. It depends on your scene, and there is no real set parameter. The denoising tends to work well with 3D environments and can do a good job of getting rid of the grain and noise you might see in an image otherwise. On the flip side it can potentially wash out some fine detail, most noticeable in human skin. The advantage to the denoiser is speed. The actual render with the denoiser on will take just as long as normal if you let it run until it finishes, but the denoiser can make an image look more finished faster than otherwise. Meaning you can manually stop the render yourself rather than wait. Again, it all depends on what your scene has in it, and the only thing to suggest is to just try it out and see if it suits your style. There are also ways to denoise an image outside of Daz Studio rather than using the one Daz Iray has.
Get an RTX card for the pose denoiser. Shaves hours off render times for me.
You can denoise with any Iray capable GPU. I don't believe the RTX cards denoise much faster than non RTX ones, even though they have Tensor cores for the task. The performance gains you are seeing are probably due to the RT cores and the fact that Turing features a lot of improvements for shading. The RT cores are a champ for Iray.
I forgot to mention one thing since the op said they have a 1080ti. I would strongly advise using a software for monitoring and controlling the GPU and its fans if you are not already doing so. Iray runs GPUs pretty hard, so you want to make sure you are doing what you can to keep the card cool. Use this software to set a more aggressive fan curve. It will get a little louder, but that is better than possibly toasting your GPU.
I'm thinking, next computer gets liquid cooling!
If you are doing this for rendering, the most benefit will be from a liquid cooled GPU. Although if you are buying new computer,the CPU might as wel be liquid cooled since those additions are pretty low cost when buying a system.
Indeed. Worth adding that Iray has no concept of finished, that's down to our mark one eyeballs.