nodar1978 Posted January 20, 2009 Share Posted January 20, 2009 Hello guys I'm doing hires rendering in vray with lots proxys, and it takes lots of time, could you let me know please chich parameters can i change to make it quiker but witoult noise on a textures in dark sides? thank you in advance Link to comment Share on other sites More sharing options...
Crazy Homeless Guy Posted January 20, 2009 Share Posted January 20, 2009 I am not adding anything to help, but rather a rule of thumb. If you have a render at 3000 pixels wide, that takes 2 hours, and you want to render that same rendering, same settings at 6000 pixels wide, it will take at least 8 hours. Doubling the width of the pixels adds 4 times the number of pixels, and will take 4 times longer. Link to comment Share on other sites More sharing options...
BrianKitts Posted January 20, 2009 Share Posted January 20, 2009 the only magic "go faster" button in vray is the use lightcache for glossies option. Anything beyond that all depends on your current settings. Which you'll have to post so people will be able to help you out. Link to comment Share on other sites More sharing options...
nodar1978 Posted January 20, 2009 Author Share Posted January 20, 2009 thank yuo guys here are the settings and scene as well, please give me your advice, I have to make renders for A3, I'm going to do it at about 1300x1000, i think it;s enough, but it 11 shot has to be done this night, as quick as possible, how do you think what is a best way, which setting i have to change? thank yuo in advance Link to comment Share on other sites More sharing options...
nodar1978 Posted January 20, 2009 Author Share Posted January 20, 2009 i chacked all the materials and all of them are in low settings, i meen 5 of maximum 8 for subdivisions. i use many proxyes as well, in this scene, much difficult things are heppening in other views, so if I'm not good in this view ten will be more difficult in others, and client is designer and asking too many deteiled things as exact colors after render (which is difficult with lighting) and lots of others, i hope you can help me, you got more experience then me, and how do you think can i manage it tonight? Link to comment Share on other sites More sharing options...
BrianKitts Posted January 20, 2009 Share Posted January 20, 2009 how long are your render times that it's a problem? How fast of a machine do you have? To be honest with that high of a noise threshold I would expect that render to only take about 30 mins or so. the only thing that's really going to give you a faster render is the light cache for glossy rays option that I mentioned before. (see image) getting back to the noise threshold, I would take it down to at least .01 if not .005 to get a better looking image. But this isn't going to help you with your render time, it will only make it longer. Link to comment Share on other sites More sharing options...
nodar1978 Posted January 20, 2009 Author Share Posted January 20, 2009 yes it takes about hour and bit more. what is light cash for glossy rays? what does it meen? sorry for maybe not professional question Link to comment Share on other sites More sharing options...
nodar1978 Posted January 20, 2009 Author Share Posted January 20, 2009 sorry i checked your uploaded image late, now i see Link to comment Share on other sites More sharing options...
nodar1978 Posted January 20, 2009 Author Share Posted January 20, 2009 the only thing that's really going to give you a faster render is the light cache for glossy rays option that I mentioned before. (see image) Hello friend I made as you told me, i tick this box but it does not help so much that i could fill it. should i do something else? thanks Link to comment Share on other sites More sharing options...
Crazy Homeless Guy Posted January 20, 2009 Share Posted January 20, 2009 (edited) Brian hit the right question when he asked about your machine specs. The resolution you are rendering at is low res. A faster machine might be the answer. Maybe not the answer you want to hear, but it still might be the only logical solution. A personal rule of thumb is to look at the average resolution of digital cameras currently being sold. The resolution of your final images should match that or be higher. So say that 10 mega pixel is the average resolution, then your renderings should at least be 3600x2400. But, ...for your case. You want A3. The minimum I would print at is 150ppi. Otherwise you are going to notice breakdown. You need to have your image at 2550x1755 pixels to be able to print A3 at 150ppi. Edited January 20, 2009 by Crazy Homeless Guy Link to comment Share on other sites More sharing options...
nodar1978 Posted January 21, 2009 Author Share Posted January 21, 2009 guys one more question. I made render on 1000 at 750, and then I'll make it bigger like A3, in photoshop. but quality was very nice on a screen, is there any chance that it can be worst on a paper? becouse i think dpi is nothing fr printing, i think more important is ppi. do you know guys how much ppi renders max itself? and can i change it? Link to comment Share on other sites More sharing options...
nodar1978 Posted January 21, 2009 Author Share Posted January 21, 2009 or one more question in different way: lets take 1000x750 from max render. how big you can print it with same quality (bit less, but in totall with good quality)? so how much you can make picture bigger to keep more or less good quality? Link to comment Share on other sites More sharing options...
Crazy Homeless Guy Posted January 21, 2009 Share Posted January 21, 2009 A 1000 pixel wide image will be exceptable at 6.6" wide. You really don't want to drop below 150 pixels per inch. 1000 pixels / 150 pixels per inch equals 6.6" wide. If you print wider than that, you will see the individual pixels on the paper. Link to comment Share on other sites More sharing options...
nodar1978 Posted January 21, 2009 Author Share Posted January 21, 2009 thank you for reply friend but one thing i dont undarstand. what sould i do if client asks me A3, my machins is quit good, but when i go up to 2000pix, max is closing. i have intel Core cuadro CPU Q6600, 2,4GHz, 2,4GHz. ram 4Gb. what should i do, should i give archive files to render farm? but farms doesn't do one still images, also i use proxys, and after archive they are mixing. settings? i dont think so becouse when i go down in settings images is getting derty and ugly. Link to comment Share on other sites More sharing options...
Crazy Homeless Guy Posted January 21, 2009 Share Posted January 21, 2009 (edited) You should be able to easily render that scene on your machine. Your scene doesn't look complex enough to really benefit from proxies, unless there is a lot we are not seeing. I haven't actively used Vray in a couple of months, so I will let others comment on the settings. ....out of curiosity, if you turn off displacement, does the scene render? ....also, just post the scene, and let a few people tweak it. You might be surprised at how fast someone can get it to render. Edited January 21, 2009 by Crazy Homeless Guy Link to comment Share on other sites More sharing options...
nodar1978 Posted January 21, 2009 Author Share Posted January 21, 2009 if i'll upload here archive scene, it is with proxys, is it ok for peaple to open it? should i turn off this displacement in global switches? thank you Link to comment Share on other sites More sharing options...
Crazy Homeless Guy Posted January 21, 2009 Share Posted January 21, 2009 If you include the proxies, people will be able to open it with out a problem, a little remapping at worse. You may need to post it to your own FTP site though. Turn off displacement under the Vray:: Global Switches Link to comment Share on other sites More sharing options...
nodar1978 Posted January 21, 2009 Author Share Posted January 21, 2009 You should be able to easily render that scene on your machine. Your scene doesn't look complex enough to really benefit from proxies, unless there is a lot we are not seeing. I haven't actively used Vray in a couple of months, so I will let others comment on the settings. ....out of curiosity, if you turn off displacement, does the scene render? ....also, just post the scene, and let a few people tweak it. You might be surprised at how fast someone can get it to render. hi Travis do you have time to check my scene please? or please if somebody can check the rendering speed from my file, and later help me to get good render time with settings, please let me know your mail and I will upload file. thank you Link to comment Share on other sites More sharing options...
leoviale Posted January 21, 2009 Share Posted January 21, 2009 Well, as I saw i your image, there is also displace in the brick material on that column over there, that would be a reason for your increased rendering times. Try to play a bit with your material, use reflection, glossiness and bump instead of displace to difference the brick from the mortar, that would make a difference in your rendering times. Link to comment Share on other sites More sharing options...
Crazy Homeless Guy Posted January 21, 2009 Share Posted January 21, 2009 Not sure I will have time to look at it tomorrow, but if you want, send it to me, and I will try and squeeze it in. Check you PM for my email. Link to comment Share on other sites More sharing options...
Nic H Posted January 21, 2009 Share Posted January 21, 2009 yes what travis said, that scene at those settings shouldnt be taking more than 1 hour on your machine. upload and ill take a quick look if you want Link to comment Share on other sites More sharing options...
Crazy Homeless Guy Posted January 22, 2009 Share Posted January 22, 2009 Ok, I ran a quick test on the file. I made a few quick adjustments. The total render time was 7 minutes. 2 minutes for GI calculations, and 5 minutes for rendering. I think the thing that really did the trick was that I turned off your AA filter. Your image is noisy, and I think it was trying to smooth all that noise, and that was causing problems. This is just a guess though. Now, you need to go and search the forums for how to eliminate the fine grain noise you have. Link to comment Share on other sites More sharing options...
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