sdds Posted October 8, 2009 Share Posted October 8, 2009 hi all, I'm having some issues with animation rendering, noise and pixel crawling. Details such as railings, planting etc. shake and swim. We run 6 nodes, quads, 4gig ram. The problems stem from aa settings. Adaptive DMC. area 1.5 min 2 max 4 crl thres .012. frame size 1024, 576. this produces a render time of 5-7 mins per node. Going any higher than this time will cause deadline issues. so working with hardware limitations I need to improve the quality while keeping render times down. settings of min -1, max 10, crl thresh .002 produce good renders but at a render time that is too long. Maybe a lower frame size and higher aa settings are a better choice. any thoughts will be greatly appreciated. Link to comment Share on other sites More sharing options...
STRAT Posted October 8, 2009 Share Posted October 8, 2009 HI Simon, how it going these days? I dont know about Max, but C4D has an option in the DMC Sampler tab called "Time Dependant". this tick box is a switch between rendering a fresh or adaptive noise solution for each frame rendered in your animation. it's basically a box that switches on or off the pixel/noise crawl/swim effect, which is both desirable and non desirable in certain circumstances. Link to comment Share on other sites More sharing options...
sdds Posted October 8, 2009 Author Share Posted October 8, 2009 hi mate how are you? Im good, been back in cg work a few months full time now, its great to be back. yep Ive tried that, it has improved things but I dont think it can make up for my low settings:(. Blur in post helps some also motion blur to some extent. planting, reflective surfaces, railings, mid to back brickwork are the biggest offenders. Link to comment Share on other sites More sharing options...
chow choppe Posted October 8, 2009 Share Posted October 8, 2009 there is an option of "Time independent " in vray DMC sampler rollout which according to vray manual on spot3d.com means "Time independent - when this option is On, the sampling pattern will be the same from frame to frame in an animation. Since this may be undesirable in some cases, you can turn this option Off to make the sampling pattern change with time. Note that re-rendering the same frame will produce the same result in both cases. " i am not a vray expert so havent understood this but just found this term similar to what STRAT mentioned for C4D. thanks Link to comment Share on other sites More sharing options...
Thablanch Posted October 8, 2009 Share Posted October 8, 2009 You should consider adaptive subdivision for animations. http://www.spot3d.com/vray/help/150SP1/tutorials_imap2.htm Link to comment Share on other sites More sharing options...
sdds Posted October 8, 2009 Author Share Posted October 8, 2009 i've honestly not considered that, read so many posts and tutorials that have swayed me to dmc for aa. My biggest concern is issues with texture crawling in the finer details ie tile/ brick grout. but saying that its worth a few tests. Link to comment Share on other sites More sharing options...
Brian Smith Posted October 8, 2009 Share Posted October 8, 2009 if you watch the image sampling webinar I'm doing, all your questions will be answered https://www1.gotomeeting.com/register/551591537 Link to comment Share on other sites More sharing options...
REDVERTEX Posted October 8, 2009 Share Posted October 8, 2009 Brian, it is not a good time for advertisments The man has a pain in the .... neck ... The problem is that with lack of time you cannot improve the situation. Normaly in animations we use DMC 2/6 and filter VrayLanchoz. But all those flickerings needs much more higher settings. Sometimes we have about 1-2-4 hours per frame for HD720p So, bad news. I think nobody could give you a solution in that situation. cheers Link to comment Share on other sites More sharing options...
Brian Smith Posted October 8, 2009 Share Posted October 8, 2009 (edited) Dimitar, How is mentioning a free webinar about a subject that the poster is having problems with inappropriate? First of all, I pay for advertising on this site every month anyway, but even if I didn't, this is a free class that I think would help the poster. I don't see how it's "not the time" for this. Furthermore, I have answered this same type of post probably 20+ times in other threads. I guess I could have just said do a search for posts that I have made with the key words 'image sampling', but I figured I would just mention the webinar since it's coming up so soon anyway. And BTW, there is something easy that he could do to fix the problem. His settings ARE inappropriate for what he's trying to do. If he wants to PM me to hear what I have to say, then I'll tell him. If anyone else wants to hear, I'll be doing the class on Oct 21st. Brian, it is not a good time for advertisments The man has a pain in the .... neck ... The problem is that with lack of time you cannot improve the situation. Normaly in animations we use DMC 2/6 and filter VrayLanchoz. But all those flickerings needs much more higher settings. Sometimes we have about 1-2-4 hours per frame for HD720p So, bad news. I think nobody could give you a solution in that situation. cheers Edited October 8, 2009 by Brian Smith Link to comment Share on other sites More sharing options...
REDVERTEX Posted October 9, 2009 Share Posted October 9, 2009 OK Brian, sorry for the inconvinience ..... I didn't mean to hurt you. I'm just a jealous guy ... Link to comment Share on other sites More sharing options...
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