nivvu Posted October 17, 2007 Share Posted October 17, 2007 hi..... i am working out on maxwell from day1.....until now i haven't succeeded in getting rid of noise in maxwell images.......i have played with all the settings like f-stop, shutter speed, and film ISO.....i have also added lights and proper light intensity to them..... please go through the attached images and let me know about the render and light settings..........where am i going wrong....... thanks in advance and cheers nivas. Link to comment Share on other sites More sharing options...
a-r-c-h Posted October 17, 2007 Share Posted October 17, 2007 You're not going to get a clean image from a closed interior in 15 minutes with maxwell. Make yourself a sandwich, put on a good movie and sit back for about 40 hours. Link to comment Share on other sites More sharing options...
Devin Johnston Posted October 17, 2007 Share Posted October 17, 2007 There are many things you can do to reduce the noise in your renderings, however Maxwell is quite possibly the slowest render engine on the planet and you should be prepared for very long render times especially when dealing with interiors. I use 10 dual core machines rendering in cooperative mode to render out all of my Maxwell scenes, at a resolution of 3000x2550 I can get an interior scene to an SL of 16-17 in about 15 hours. This is the equivalent of rendering on a single dual core machine for 300 hours. -Make your emitting surfaces as lowpoly as possible. -don't enclose your emitters in a dielectric object if possible -Make sure the emitter isn't intersecting other geometry -don't use pure white (255, 255, 255) in your scenes try something like (233,233,233) because the pure color will increase the amount of noise . -use AGS glass where ever possible -unless you need them turn off caustics -don't use sunlight and physical sky, a HDRI or skydome with a sunlight emitter will produce much less noise. -hidden emitters can reduce noise Link to comment Share on other sites More sharing options...
kippu Posted October 17, 2007 Share Posted October 17, 2007 i am sure you can get a good looking exterior image in 20 - 30 mins... an interior hmmm ....how long till your patience runs out? Link to comment Share on other sites More sharing options...
nivvu Posted October 18, 2007 Author Share Posted October 18, 2007 thanks for the lines guys..... cheers nivas Link to comment Share on other sites More sharing options...
nivvu Posted October 18, 2007 Author Share Posted October 18, 2007 hi maxer..... wt does this sentence mean????? "hidden emitters can reduce noise"...... and also please tell me smething about the scene scale......does it realy effect the lighting output in the image??????? my scene is in feets and inches.....i have put .254 value....is this value correct????? cheers nivas Link to comment Share on other sites More sharing options...
Devin Johnston Posted October 18, 2007 Share Posted October 18, 2007 Hidden emitters are just that emitters that are hidden but still cast light, basically they are invisible to the camera. Scene scale should be set to 1 always. Link to comment Share on other sites More sharing options...
Adehus Posted October 19, 2007 Share Posted October 19, 2007 Maxer, I thought .254 was correct for feet/inches. Isn't Maxwell set to calculate based upon the metric system? I've been told this for the FormZ plugin, maybe others are different? Link to comment Share on other sites More sharing options...
nivvu Posted October 19, 2007 Author Share Posted October 19, 2007 Even i too was been said before that .254 scene scale is must for feet and inches scene...........and u r saying tht it should always remain in 1......so which one is correct..???? if i render that interior scene with .254 its rendering totally dark......and if i render with 1 then its cmg out well....... now watz this..??? how to decide on scene scale for a particular type of max scene.... please advise.. nivas Link to comment Share on other sites More sharing options...
Devin Johnston Posted October 19, 2007 Share Posted October 19, 2007 Before version 1 came out you had to adjust your scene scale but not any longer. Link to comment Share on other sites More sharing options...
rotten42 Posted October 19, 2007 Share Posted October 19, 2007 There are many things you can do to reduce the noise in your renderings, however Maxwell is quite possibly the slowest render engine on the planet and you should be prepared for very long render times especially when dealing with interiors. I use 10 dual core machines rendering in cooperative mode to render out all of my Maxwell scenes, at a resolution of 3000x2550 I can get an interior scene to an SL of 16-17 in about 15 hours. This is the equivalent of rendering on a single dual core machine for 300 hours. WOW!!!....that is frick'n slow! Link to comment Share on other sites More sharing options...
Adehus Posted October 19, 2007 Share Posted October 19, 2007 WOW!!!....that is frick'n slow! Yes it is, and it's a point that cannot be overemphasized. Interior rendering speeds vary wildly depending on complexity of lighting, number of windows doors etc for light to escape, and other factors mentioned previously. Even so, at best it'll be merely 'slow', and at worst really 'frick'n slow!' The important thing to take away from it all is that you can't really know how slow a render will be ahead of time- it's much harder to get a 'feel' for than other render apps. IMHO that's a big problem for a professional product. BTW, thanks Maxer, I did not know that... I wonder if using a default of 1 will now speed up my renders? (chuckle..) Link to comment Share on other sites More sharing options...
Devin Johnston Posted October 19, 2007 Share Posted October 19, 2007 Speed has always been Maxwells biggest problem IMO, and the fact that NL actively suppresses any information that points this out really makes the problem worse. I've tried to argue this point on the forums and the typical response I get is "Maxwell may not be the render engine for you if you think speed is that important" or "buy faster hardware if it doesn’t render fast enough for you". These comments came from A-Team members and forum moderators who are supposed to officially represent Maxwell and NL. Never the less there are posts all the time about how to remove noise and even when all the tips are tried these people are asking why after 50 hours of rendering their images are still full of noise. Link to comment Share on other sites More sharing options...
sudark Posted February 1, 2008 Share Posted February 1, 2008 maybe the A-team just got so sick of people telling them Maxwell is slow that they now intentionally want to piss people off lol Link to comment Share on other sites More sharing options...
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