Show Us Your Iray Renders. Part III
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You of all people ought to know how important the correct terminology is, especially in this thread. It should be "DRAGON OFF THE PORT BOW!!!!" ;)
Lol
You of all people ought to know how important the correct terminology is, especially in this thread. It should be "DRAGON OFF THE PORT BOW!!!!" ;)
LOVE it. Ridiculously jealous of the Titan-X, but I'm consoled by the fact that it's in the hands of someone who will utilize it so nicely! Just curious... what was the render time on that beauty?
And... I need a new GPU. Carry on!
...very nice. I really like the lighting.
Also very jealous. Dream of getting a Titan X (and pairing it with a GTX 690 just for the extra 3,072 cores), but need to hit a lotto if I ever hope to get one. Seems for the types of scenes I do, I'll need that 12GB.
If you pair a Titan X with a GTX 690 you'll end up with only 2GB VRAM instead of 12GB. Also, the 3072 CUDA cores on the 690 won't be as good as the 3072 on the Titan X, as the newer ones are much more efficient.
For a lottery fantasy it should be 4x GTX Titan X minimum. And those outboard Nvidia render boxes are nice...
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Yes if you use SLI
SLI should be OFF (for multi-GPU systems)
PhysX should be set to CPU for best Iray performance
iray will ignore the 2GB GPU and only utilize the 12GB GPU
Iray will use whatever GPUs it sees within the system
If you pair a Titan X with a GTX 690 you'll end up with only 2GB VRAM instead of 12GB. Also, the 3072 CUDA cores on the 690 won't be as good as the 3072 on the Titan X, as the newer ones are much more efficient.
For a lottery fantasy it should be 4x GTX Titan X minimum. And those outboard Nvidia render boxes are nice...
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If you pair a Titan X with a GTX 690 you'll end up with only 2GB VRAM instead of 12GB. Also, the 3072 CUDA cores on the 690 won't be as good as the 3072 on the Titan X, as the newer ones are much more efficient.
For a lottery fantasy it should be 4x GTX Titan X minimum. And those outboard Nvidia render boxes are nice...
Thou shalt not covet thy neighbor's GPU, lol. I'm limping with a GeForce 660 because I have a Disney wedding to pay for. Still, if I remind myself how much faster Iray is than Lux (at least until Reality and Lux 1.5 meet and GPU rendering happens there), I'm satisfied. Besides, I only WANT a Titan X because I know it's there. I might even take up macrame or woodworking while waiting for renders... :lol:
Logic contradiction (morning head explosion).
Edit - the statements below are incorrect but I'll leave them so the thread makes sense:
If you set Iray to use the CUDA cores on a GTX 690 in a system, then Iray will be limited to using the size of the 2GB VRAM of the 690 - no matter how much VRAM is available on any bigger card being used.
A Titan X used together with any card having less VRAM will result in Iray being limited to using the VRAM size of the lesser card.
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My info is from Nvidia Iray FAQ
the scene must be able to be loaded into the GPU so in this case the lower memory card will be ignored if the scene use greater amount of video memory and only the GPU with higher memory will be used
I guess we saying the same stuff just with different approach
so in this case the 690 will be not used at all by Iray and ignored
that why it is important to have all cards with the same memory to use all CUDA cores from different GPUs
Logic contradiction (morning head explosion).
If you set Iray to use the CUDA cores on a GTX 690 in a system, then Iray will be limited to using the size of the 2GB VRAM of the 690 - no matter how much VRAM is available on any bigger card being used.
A Titan X used together with any card having less VRAM will result in Iray being limited to using the VRAM size of the lesser card.
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HUGE thanks everyone for the tips and tutorials, i've been learning a lot..... making progress i think :)
biggest problem right now is i really can't figure out all the lights too well.... i don't use the 'sun' light much. Point lights are MUCh stronger than th ey were in 3Delight, and distant lights, even on REALLY low intensity, blow out the scene lighting (all white)... even when its set to specular only (not illuminate) so very confusing! i use mostly spotlights. And yeah i turn the camera headlamps off. its just really hard to get the lighting right.
but here's my best attempt (3d pic) at Iray so far. Isn't she cute???
That's a more sensible way of working than the Octane method, which will limit total VRAM availabilty to that of the smallest card.
Still, for Kyoto Kid's scenes that "need that 12GB" , the GTX 690 will be of no use.
No.
You were saying the correct stuff with the approach of using facts.
I was saying the wrong stuff with the approach of using assumptions.
:roll: :-S :-)
By the way, can you set Iray to ignore a GPU? So that you can use a simple GPU just for driving the monitor and running Windows, whilst Iray uses a powerful GPU purely for rendering? I know this is possible in Octane but don't want to assume anything... ;-)
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Except, if it's the primary card, for handling the display so that the Titan has all of its RAM available for rendering.
Yes, the Advanced tab of Render Settings allows you to turn individual devices on and off.
Except, if it's the primary card, for handling the display so that the Titan has all of its RAM available for rendering.
True, but the power requirement! Using a GTX 690 to drive the display would be just taking the PSU. ;-)
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So I decided the morph from my last render looked rather like a renaissance Madonna. As such I have stuck her in a blue dress. Somewhat ironically the dresses file-name is per-raphaelite chiton, since the render ended up looking quite raphaelite indeed.
No postwork, other than sticking it on the background (which I could've expended more effort on to be honest)
@belovedalia The morph isn't really shareable unfortunately, its made up of a morph I made myself, a bunch of dialspins (the morph sets by 3D-GHDesign in particular) and a gen1 dialspun morph consolidated and transferred. I really like your render too. Iray is way better at non-photorealism than advertized.
As an insomniac, I play a lot of Skyrim. I've become very good friends with my Skyrim characters, lol, and while I realize they are already 3D characters, they have that low-poly, game-optimized look. Ergo, I decided I wanted to render my own version of "Calliope, Sniper of Tamriel." This is the raw result of that vision, straight out of Iray and I'm delighted with her! I'll postwork it (because that's what I do!) but the base render is already incredible. The bow, btw, is from the Dark Sisterhood outfit. I retextured it to resemble an enchanted Daedric bow, since it was the closest thing I could immediately locate that resembled the geometry of Calliope's favorite demonic weapon. :vampire: I'm really pleased with how easy the uber shader is to work with, too. This was lit with an HDRI from a Render Studio for Poser (RDNA) package. The lights lack a skydome, but offer a wide variety of light profiles. There's also a single sphere with a light-emitter shader on it just off camera, giving the main orange light in the scene. In its full resolution, I was able to watch most of the pacific theater footage of WWII in Color while it rendered, lol, but my GeForce 660 and CPU chugged away and got it done! (The DOF slowed it way down.)
Anyway -- here's Calliope with the hair she SHOULD have, if only it was easily animated in-game! :D
like a classic painting ...beautiful !
Aw. Shucks. I hope someone makes a char like h er, because I love the face shape. I really like interesting face shapes the most for artwork :) And you made a gorgeous image, that dress is perfect for her Kamion :)
I am going to use Titan X just for rendering and GTX 760 for my monitors so I can do other stuff between
True, but the power requirement! Using a GTX 690 to drive the display would be just taking the PSU. ;-)
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I like!
Agree the lighting requires a lot of work to get right. Don't be afraid to get extreme. I had one controversial candle that I pushed to a billion lumens in order to get the light intensity I wanted, and I've been setting my distant lights to 6 lately. Real physics seems to be all over the place!
Good to know. I'm using a GTX 750 Ti for display with a GTX 680 (4GB) currently place holding for either a new GTX 980 Ti or a second hand GTX Titan Black.
Which one I go for will depend on the price of the GTX 980 Ti and the timing of the launch of the full version of Studio that uses Iray (not using the beta).
I could easily drop the 800 quid for a Titan X (it is tempting) but since I get very little time to spend on this hobby I can't justify the cost to myself. For a CGI professional like you it makes sense. 6GB VRAM will be enough for me - as a Bryce (32bit) user I'm used to scene size discipline.
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With point lights try changing them to a shape like rectangle. For softer shadows make the size of the shape larger. I wouldn't even bother with distant lights. The only thing real world comparable is the sun and the moon and there are better ways to get a sun or moon effect in Iray. Things like spec only and no shadow do not work in Iray. No spec only or no shadow lights in the real world for them to mimic. Other things to keep in mind when lighting a scene are that objects in the scene will reflect light back so a backdrop that is near white will act increase the light slightly in the scene where very dark walls will not reflect as much light.
With point lights try changing them to a shape like rectangle. For softer shadows make the size of the shape larger. I wouldn't even bother with distant lights. The only thing real world comparable is the sun and the moon and there are better ways to get a sun or moon effect in Iray. Things like spec only and no shadow do not work in Iray. No spec only or no shadow lights in the real world for them to mimic. Other things to keep in mind when lighting a scene are that objects in the scene will reflect light back so a backdrop that is near white will act increase the light slightly in the scene where very dark walls will not reflect as much light.
Seems like setting spot lights to "specular only" works but not with distant lights. I will try the spot light thing.
another problem i am having is the background.... if i put an image in the background, as i do often for portraits or layered images, i would expect it to render exactly the same color/shade as it is. But its coming out a different color- as if lights and stuff are affecting the backtground image. As it's not a prop, but set via environment, it really shouldn't be doing that. It's frustrating. I tried to rerender that last image I did, the dawnling one, 3 times trying to get th ebackground to render properly. I finally resorted to rendering as a png and putting it on the background... but of course there's that tell-tale edge around the figure. So its not a good method. Why is the background changing color tone?
Under Tone Mapping , set the Burn Highlights Per Component off , it will not normalize the colors in your render
Seems like setting spot lights to "specular only" works but not with distant lights. I will try the spot light thing.
another problem i am having is the background.... if i put an image in the background, as i do often for portraits or layered images, i would expect it to render exactly the same color/shade as it is. But its coming out a different color- as if lights and stuff are affecting the backtground image. As it's not a prop, but set via environment, it really shouldn't be doing that. It's frustrating. I tried to rerender that last image I did, the dawnling one, 3 times trying to get th ebackground to render properly. I finally resorted to rendering as a png and putting it on the background... but of course there's that tell-tale edge around the figure. So its not a good method. Why is the background changing color tone?
Yep but it's worth trying to see what I can do with my current hardware and if the software can handle the noise alone. I don't think I used the Iray Nois filter and don't really know if that would bring something in that case. There is always hope that Nvidia implemented something that would eliminate most of the noise. Worth a try
Thanks. I think that it's a scene I'll work a bit more. I may be a little bit demanding on this case.
Question for you iray people...how fast does depth of field take to clear for y'all? Not talking from an hdri, but actual geometry. When I try and do extreme (or even average) DoF in octane it takes forever to clear up so wondering if iray does anything differently.
...so the 690 would not work as a "de facto" Tesla compute unit even if not in SLI mode? Bugger.
...agh my Cute-O-Meter's now broken.
Sweet.
Has anyone that downloaded the last Beta via DIM like I did successfully returned to 4.8.0.53? I can't get the caustics to render without crashing no matter what, and I liked using that.