designerdisaster Posted December 29, 2006 Share Posted December 29, 2006 hi, i'm new to this forum, i'have an unsolved prob with vray 1.5 rc3/max9 I have to finish a hi-res-picture for a client.I use Distributed rendering IRmap for primary bounce and light-cache for secoundary There is a prob when all the GI is computed and when vray is rendering, some buckets are darker or lighter than others.it is always a distant computer-buckets who bug, never the locals buckets and the bug appears randomly, sometimes computer1, sometimes computer4... im very angry , it is definitly imposible to render this picture with a single computer and the deadline is very near...48hours...!!! please help me scuze my english, i'm french...! Link to comment Share on other sites More sharing options...
alias_marks Posted December 29, 2006 Share Posted December 29, 2006 I would recommend building your lightcache ahead of time and letting all the computers share that file. This will lead to less variance between computers. Check out page 22 of the recent Arch. Insider articles. http://www.cgarchitect.com/upclose/VI/Week14/Critical_VRay_Settings_Part_I.pdf Good Luck Link to comment Share on other sites More sharing options...
designerdisaster Posted December 29, 2006 Author Share Posted December 29, 2006 thanks for your reply, but i have only 15 pages on this pdf file... Link to comment Share on other sites More sharing options...
alias_marks Posted December 29, 2006 Share Posted December 29, 2006 Whoops, posted the wrong link, heres the correct one. http://www.cgarchitect.com/upclose/VI/Week14/Critical_VRay_Settings_Part_I.pdf Link to comment Share on other sites More sharing options...
Brian Smith Posted December 29, 2006 Share Posted December 29, 2006 Yes...definitely compute the LC and IR on one computer (if you're having problems and a deadline looming), save and distribute to the other computers and use the other computers for just the rendering process. Link to comment Share on other sites More sharing options...
manta Posted December 29, 2006 Share Posted December 29, 2006 Or could he just use QMC for both 1st and 2nd, might be slow, but if he has enough computers... Link to comment Share on other sites More sharing options...
designerdisaster Posted December 30, 2006 Author Share Posted December 30, 2006 thanx for all your quick reply i'm not working today...i will try on tuesday but I have a little doubt: if i compute the ir map and the light cache across the network and render the image in "from file" mode but on the host machine only, there is no prob thus i think that the gi is corectly computed. the IRmap-previsualisation looks like good in DR mode i don't really know I' have "only" 14 htreads i dont know if it's enought to compute GI in qmc-mode, output size is 4000x2500px... Link to comment Share on other sites More sharing options...
designerdisaster Posted January 2, 2007 Author Share Posted January 2, 2007 hi everybody, I've done some tests this morning, if i compute the light cache and the irmap on a local computer and render with the network it dosen't work there is the same prob... i try to compute the light cache in a single pass 1 instead of 4 by default, prob is the same it works only if i compute all in local mode...but i don't want to.Scene and output are too big for a single computer i don't know what to do but i hope there is a solution, vray is a profesional rendering solution, no ? please help a poor designer to achieve his project.... Link to comment Share on other sites More sharing options...
designerdisaster Posted January 2, 2007 Author Share Posted January 2, 2007 if i switch off the glossy effects in the global-switch roll out there is no prob thus i think it's a bug with the interpolation of glossy reflection/refraction ... Link to comment Share on other sites More sharing options...
manta Posted January 2, 2007 Share Posted January 2, 2007 I don't think its a bug, just render without interpolating glossy reflections... Link to comment Share on other sites More sharing options...
designerdisaster Posted January 2, 2007 Author Share Posted January 2, 2007 mmmmm it's too long without interpolation i need it! Link to comment Share on other sites More sharing options...
designerdisaster Posted January 2, 2007 Author Share Posted January 2, 2007 does anybody know the "use current pass samples"?? i think here is the prob http://www.vray.us/vray_documentation/vray_irradiance_map.shtml i dont find this check box... (max9 with vray 1.5 RC3) Link to comment Share on other sites More sharing options...
manta Posted January 3, 2007 Share Posted January 3, 2007 mmmmm it's too long without interpolation i need it! Well how long is too long...its one still picture, and you said you have 14 cpu's... Link to comment Share on other sites More sharing options...
designerdisaster Posted January 3, 2007 Author Share Posted January 3, 2007 i have several still images (5) to render in a 4000x2500px output file i think the solution is the use current pass samples but i dont find it in my irradiance-map rollout "Use current pass samples - this is used during irradiance map calculation. When checked, this will cause VRay to use all irradiance map samples computed so far. Unchecking it will allow VRay to use only samples collected during previous passes, but not those computing earlier during the current pass. Keeping this checked will usually cause VRay to take less samples (and therefore compute the irradiance map faster). That means that on multiprocessor machines, several threads will be modifying the irradiance map at the same time. Because of the asynchronous nature of this process, there is no guarantee that the rendering the same image twice will produce the same irradiance map. Normally this is not a problem at all and it is recommended to keep this option checked." Link to comment Share on other sites More sharing options...
designerdisaster Posted January 3, 2007 Author Share Posted January 3, 2007 help Link to comment Share on other sites More sharing options...
Recommended Posts
Create an account or sign in to comment
You need to be a member in order to leave a comment
Create an account
Sign up for a new account in our community. It's easy!
Register a new accountSign in
Already have an account? Sign in here.
Sign In Now