IRAY not working in any sense
felixdartmouth
Posts: 9
I have a fast PC - 32 GIG and Nvidia GE Force GTX 760.
I've carefully watched the DAZ3D videos on youtube, tried to adjust the settings as recommended, but I'm getting 0% progress after minutes and minutes, whereas I see these renders taking a few seconds on the example videos.
I liked the idea of having the Auxiliary Viewport render in IRAY - but it just doesn't work at all - draw settings are set to interactive -
This is really important to me to get working! Help please.
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Comments
When you say minutes and minutes are we talking 20 30 minutes?
Are all you surfaces Iray shaders if not Iray takes time to convert the surfaces this can hold up the start of a render.
How much VRAM does your video card have, and are you rendering large scenes, if the scene doesn't fit on to the cards VRAM then it gets dropped and you are rendering with CPU only which can be slow.
BTW - a 3Delight render takes about 2 minutes for a 1920x 1080 and looks very good, but not Iray
are Iray shaders a product I need ? I was working with GF8 and a background. I have 2 Gig Vra
With 2GB Vram your render will be defaulting to CPU & it will be hard to find anything that will fit into 2Gb of Vram
You could try to reduce textures using either this paid product:
https://www.daz3d.com/scene-optimizer
or
Free Script
https://www.daz3d.com/forums/discussion/137161/reduce-texture-sizes-easily-with-this-script
In my personal experience, anything rendering on CPU takes 10 times longer than the same scene on my GPU
Check your log and see what it says.
It's becoming really clear that my video card Nvidia GE Force GTX 760 is really lacking in CUDA musclepower. I'll continue to research this.
I agree with the above suggestions. Update the drivers, check the log to see what's going on, and in your case do absolutely use the scene optimizer to fit your vram (or resize the textures yourself). Also wiring the monitor to the mobo may help to free some vram since this way the viewport will use the integrated card (so no iray) and the gtx will be free for rendering.
OK, So my GTX 760 has 1152 CUDA cores (2 GB) - and couple of the cards I am looking at "GIGABYTE GeForce GTX 1070 DirectX" has 1912 CUDA cores and 8 GB.
Is double the CUDA cores and 4x the memory going to make a huge difference - this is about a $500 card.
DAZ menu > Help > Troubleshooting:
Current OpenGL Version:
4.5.0 NVIDIA 382.05
OpenGL Provider:
NVIDIA Corporation
Hardware:
GeForce GTX 760/PCIe/SSE2
Features:
MultiTexturing
Supported
Shadow Map
Supported
Hardware Antialiasing
Supported
OpenGL Shading Language
Supported
Pixel Buffer
Supported
Pixel Buffer Size
Not Enabled
Maximum Number of Lights
8
Number of Texture Units
4
Maximum Texture Size
16384 x 16384
(I got scene optimizer, but am not running it yet)
I'm running a much smaller IRAY render 853 x 480 and it is running - slowing my PC down to a crawl - it's been running 31 minutes and its 31% completed. (actually 1% per minute) I love the look - the shadows look fantastic - the model is nude - maybe it renders the dress last.
So, I guess you can say Iray is working - so sorry about the title of my thread.
I'll check and maybe post the log file when it's finished.
The 1070 scores about 10K on passmark while the 760 is about 5K. So yes it will make a difference for speed. But the most value is 8GB vs 2GB vram. This gives you much more freedom with scenes you can handle. And the scene optimizer stills very useful even with 8GB cards.
Anyway it's not that you can't work with your 760 card. It's just that you'll be much more limited in the scenes and textures you can handle.
When you render always check the log just to be sure it's not reversing to cpu. Also you don't need to get 100% convergence in most cases, so you can stop the render just when you see it's good enough. Below some links that may help.
https://www.daz3d.com/forums/discussion/158961/11-gb-vram-insufficient-for-5-characters-for-iray-rendering
https://www.daz3d.com/forums/discussion/160336/grainy-lighting-is-there-a-way-to-remedy-this
It's actually a $375 card, prices increased recently because of demand by those using it for mining digital currency. The 1070 has a kind of "sweet spot" of CUDA cores and power requirements that make it attractive to these users.
If you're not needing it right now, you might wait to see if the price comes back down. OTOH, it could just as easily go up. Or, if you're not sold on the Gigabyte brand, there are some versions of the card for about $400, such as the model from EVGA. Obviously you'll spend more for a version with different cooling hardware, so go through the variations to see what suits your needs best.
It's been a journey - thanks everyone.
Rather than limping along with my GTX 760, (my log files were a disaster) I bit the bullet and got an ASUS GTX 1080 - 11 gig and 34?? CUDA cores. The install went very smoothly, updated drivers, recalibrated, etc. Love it.
So, I took a scene with a G8F in an interrogation room, which DAZ had totally choked on before. I used the scene-optimizer recommended above - I'm trying to understand it and I rendered a 1920 x 1020 in 12 minutes and for the most part it looks great.
So, I'm beginning to understand that you can't just slap a bunch of elements together and get a good render. With a new scene, under Smart Content, there is a section called "Ready to Render". There is a "Day at the Beach" scene in there, and I opened it, set it to Iran, and got a beautiful render, blazing fast.
What is different about this scene than the one's I build from cobbled-together materials?
Well, I spend some $$ and hours, but at least I feel like I am playing with a full deck - computer hardware-wise, at least.
Lighting, shaders, believable posing, and composition are the main hangups. If you post your image in the Art Studio people will be happy to take a look at it.