Vray too slow while rendering
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sorry, I have no idea - as there are other variables, such as the type of materials (reflective and transparent materials take longer,) your lighting setup, and the complexity of your model. I would suggest rendering at 1/2 size (with irrmap set at -3 and -5) and then resampling the image to double resolution. That way you will have an image for sure. Then you can try and see if you can render the full resolution.
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I'm having same problem. Scene itself is not so big. I know that curtain is killing render time, but 5 days, with no effect? Please help
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@karismah said:
I'm having same problem. Scene itself is not so big. I know that curtain is killing render time, but 5 days, with no effect? Please help
What's the material of your curtain? Are you using a refraction layer? Could be the material is the culprit. Also, Do you have displacement on any of your materials?
Andy
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Hi,
I don't have refraction on curtain, I use double sided material by V-ray with translucency on bacic material and 2sided material. On few others I have bump effect but not displacement. -
@Sebasvelpa: why do you have the reflect slot in the enviroment ticked? are you using the hdr+sky trick? in that case you should untick that after adjusting sun in the reflect slot..
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@panixia said:
@Sebasvelpa: why do you have the reflect slot in the enviroment ticked? are you using the hdr+sky trick? in that case you should untick that after adjusting sun in the reflect slot..
Wow, I haven't noticed that! No I'm using standard sun settings. Thank you I'll try how it works off.
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@karismah said:
@panixia said:
@Sebasvelpa: why do you have the reflect slot in the enviroment ticked? are you using the hdr+sky trick? in that case you should untick that after adjusting sun in the reflect slot..
Wow, I haven't noticed that! No I'm using standard sun settings. Thank you I'll try how it works off.
ok, but that was not in your visopts, it was in those of the other user..
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I just came to office, there is a mistake in your comment. I didn't tick reflect slot in enviroment, sooo there's nothing to change
But if you have any other idea plaease let me know.Thank you.
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@karismah said:
there is a mistake in your comment
no, there is a mistake in you reading my comment, because as stated (and repeated and colour-emphatized) above i was referring to the visopt of Sebasvelpa, not yours. hope you understand.
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@karismah said:
if you have any other idea plaease let me know.
i don't know, the screenshot you attached are quite unreadable, moreover i don't know if there is some displacemente going on or blurry reflections etc, also i don't know which machine are you using.. your scene/geometry looks lot more complex than that of the other user.. it's hard to say..
edit: i read above you are not using displacement.
your scene looks utra-hi-poly however.. also maibe you are using super-heavy textures? is there refraction on the window glass? which cpu do you use? -
@panixia said:
@karismah said:
if you have any other idea plaease let me know.
i don't know, the screenshot you attached are quite unreadable, moreover i don't know if there is some displacemente going on or blurry reflections etc, also i don't know which machine are you using.. your scene/geometry looks lot more complex than that of the other user.. it's hard to say..
edit: i read above you are not using displacement.
your scene looks utra-hi-poly however.. also maibe you are using super-heavy textures? is there refraction on the window glass? which cpu do you use?the scene has 48MB. No glass at all cause curtain is quite heavy in my opinion (double-side material). There are some blury reflection on the furnitures, mosaic wall and floor. Maybe you have nice method for great looking and not heavy curtains?
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@karismah said:
Maybe you have nice method for great looking and not heavy curtains?
i'm not god. i'm quite new to sketcup and vray and i'm sure a lot of people here could advice you better than me. also i'm not that good at english, so it's difficult for me to explain sometimes..
anyway i will try..i can't see it well from your screenshots, but your curtain looks very high poly. do you downloaded it from some 3dsMAX collection or something like this? or did you modeled by your own? i find IMHO that modeling object by myself to fit my render's needs is the best solution when it is possible..
in this case you say that you are using a double side curtain with no refraction on it.. why double side if you don't need refraction? also you are using a very small output like 800 pixel wide? so you can barely see the tickness or you can't see it at all.. for the same reason i suggest to model a section as a component (i would suggest to use beziere splines + extrude edges by rails, so you can easily control your segments) then copy-repeat the component.
all in all, i think a single sided low-poly component repeated (flipped and scaled maybe) would dramatically cut down the polycount and of course the render time..
ps. what's your computer specs?
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@karismah said:
Hi,
I don't have refraction on curtain, I use double sided material by V-ray with translucency on bacic material and 2sided material. On few others I have bump effect but not displacement.can you post a screenshot of your curtain material settings?
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Hi, I am sorry I haven't replay for soooo long. I had no access to internet for few days. I did exactly you have told me. I reduced size of elements I delete curtain which was extremly heavy and I modeled it in Photoshop
So there is an effect of my work.
Thanks for help
Karo -
I think it's because you're trying to put too much strain for too long a period on your poor notebook.
You have a massively detailed scene rendering at a 4K resolution running on a laptop with a pretty run of the mill graphics chipset and a slightly above average cpu.
I have a desktop running a Nvidia GTX 660ti and an AMD A10 APU along with a hack file for allowing VRAY to utilize 4GB of RAM. And I would never even think of doing that.
Also, what I've realized is that with rendering, at least with VRAY for SketchUp, is that doing either more than five or six renders and/or an extremely demanding rendering considerably lowers the graphics performance of the GPU, but for me, it only lasts until the next reboot. Hardware gets "exhausted" too, even without using demanding programs of any kind on most systems, it's smart to shut down your system for around 15-30 mintues every couple days, or far more frequently if you're putting that kind of strain on a notebook not optimized for such things like say the Alienware M18X or the MSI GT70.
Keeping that in mind, you also really need to bump down the resolution. I have a nearly top of the line graphics card and I never run mine over 2048x1536. High-poly models also take a huge toll on performance. Honestly, I don't recommend using a high-poly anything unless it's absolutely necessary, for say a severe close-up. As long as its not a really low poly, most times in an internal scene it's difficult to notice really any difference in quality between high-poly and medium-poly.
One last tip. It's typically better to have more realistic renderings rather than really high resolutions. Here's a link that you'll hopefully find helpful.
V-Ray for SketchUp – super crash course :: SketchUp 3D Rendering Tutorials by SketchUpArtists
By Steven Man V-Ray for SketchUp is a rendering plug-in that can require a lot of time to learn properly. To fully understand V-Ray would be ve
(www.sketchupartists.org)
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Hi everybody , I have a problem with starting rendering ...
When I click the Render button it takes several seconds to start rendering and system tray shows me "not responding" for sketchup , but it starts rendering after (let's say) 15 secs . There is also a message says : " V-ray is currently processing your scene , please wait..." . But it is not normal , no matter what scene I want to render I have this delay , even on an empty screen !! I think it might be a V-ray software problem cause when I installed v-ray it causes a big delay to SK launching . and the problem solved after uninstalling v-ray .
Any idea ?
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No one should be waiting 5 days for a rendering unless they are rendering on a 486 (some of you youngins might not even know what this is).
My first go to is, displacement - unless you absolutely need it, I would not use any. If you are downloading vismats from the web you might have displacement on a material and not even know it. Also, you might have high subdivs on a material and not know it.
There a hundred factors in VRay that can increase render times, so I don't think any of us could tell you exactly what it is, but I can tell you that if you are using the default render settings and test a render at 800 wide and its taking a long time, you have displacement somewhere most likely. One way to try to turn it off is try through the global displacement setting and set the amount to 0. If the render starts quickly, now you know. If not, then try setting the global subdivs multiplier to .25 and see how this works. If still very slow, then you might have a texture map in there that was downloaded from the web that can cause issues. I tend to stay away from stuff downloaded from 3D Warehouse as much of it is crap and has texture maps with funky file names and characters.
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if you can zip up the model, as well as any external files that are referenced (textures, cached map solutions, etc), and upload it to a place like google drive, soshare, or mediafire, someone might be able to track down the issue faster than just looking at screen shots.
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@ridation said:
Hi everybody , I have a problem with starting rendering ...
When I click the Render button it takes several seconds to start rendering and system tray shows me "not responding" for sketchup , but it starts rendering after (let's say) 15 secs . There is also a message says : " V-ray is currently processing your scene , please wait..." . But it is not normal , no matter what scene I want to render I have this delay , even on an empty screen !! I think it might be a V-ray software problem cause when I installed v-ray it causes a big delay to SK launching . and the problem solved after uninstalling v-ray .
Any idea ?
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