fadi3d Posted August 3, 2009 Share Posted August 3, 2009 Hello Guys, my Problem is not with the loft process, it is when i render the lofted gypsum that i get these weird effects (pls see the attached Pic) if anybody knows how to solve this please help me Asap it is driving me crazy note :i tried playing with the skin parameters with no luck thank u in advance Link to comment Share on other sites More sharing options...
Nic H Posted August 3, 2009 Share Posted August 3, 2009 thats not a geometry problem, its poor gi. turn up your irr map settings are you trying to light teh soffit with vray light material>? Link to comment Share on other sites More sharing options...
fadi3d Posted August 3, 2009 Author Share Posted August 3, 2009 Dear Nic, i don't think it's a Gi Problem As i only have it in the Gypsum Not Anywhere else Link to comment Share on other sites More sharing options...
Nic H Posted August 3, 2009 Share Posted August 3, 2009 try DMC first bounce then for a test and that will tell you if its a imap issue. Link to comment Share on other sites More sharing options...
amer abidi Posted August 3, 2009 Share Posted August 3, 2009 definitely a GI issue Link to comment Share on other sites More sharing options...
WAcky Posted August 3, 2009 Share Posted August 3, 2009 Agreed. You may think its only an issue with that material but it's because of the complexity of the geometry. The number of GI samples are too low and arent interpolating across the surface properly. This is also evident on your ceiling. There are blotches because there are too few GI samples. Increase your GI settings. I'm 99% sure this is your issue. Link to comment Share on other sites More sharing options...
fadi3d Posted August 3, 2009 Author Share Posted August 3, 2009 Guys i took my settings to Hi Irr with 60hs.40 int and A high A Dmc of 2min.20 max and it still gave me this (attached) as u can see everything else is great so what do u think ? Link to comment Share on other sites More sharing options...
amer abidi Posted August 4, 2009 Share Posted August 4, 2009 (edited) no need to go that high.. I think 60hours for such a crop is too much, regardless of what setup you have. (unless i'm mistaken and you're referring to a render setting there.. sorry i'm not a vray guy) Try rendering a zoom crop to see if you still get the same problem.. Im still very sure its a GI issue. Edited August 4, 2009 by amer abidi Link to comment Share on other sites More sharing options...
WAcky Posted August 4, 2009 Share Posted August 4, 2009 I think he means 60HSph samples. But I agree that you don't need to go so high. Perhaps you could do a screen grab of you IR settings as well as your secondary bounce engine as this could also be causing problems. Just rocketing up all your settings can actually make your solution look worse if you don't know what you're doing. Settings like clr thresh, Nrm thresh and Dist thresh (which are locked when using presets) will attract GI samples to parts of your scene with more geometric detail. Do some reading here for basic explanations of these parameters Link to comment Share on other sites More sharing options...
amer abidi Posted August 4, 2009 Share Posted August 4, 2009 I think he means 60HSph samples. Thought so Link to comment Share on other sites More sharing options...
fadi3d Posted August 4, 2009 Author Share Posted August 4, 2009 James ur Wright 60 is for HS Subdiv and 40 for the Interp Samples.irr is Hi Lc 1500 Screen Sample size 0.02 my Dmc 2 Min 20 Max Clr Thresh 0.003 This is what i got so Far (Pls See The Attachment and excuse The Watermark as this Project is not Delivered Yet and if my BOSS knew it's on the Net He Would Kil Me ) i appreciate your help so much, Thank you.So if you have any idea or comment do not hesitate to tell. james i'll read what's on the link. Cheers Link to comment Share on other sites More sharing options...
Nic H Posted August 4, 2009 Share Posted August 4, 2009 do you even read the replies? you havent got enough light, and seeing as though your scene seems to be lit by vray light mats you are going to have a hard time getting rid of those splotches. can you not add some more light in the room? that will definately clear it up Link to comment Share on other sites More sharing options...
fadi3d Posted August 4, 2009 Author Share Posted August 4, 2009 Nic do bear with me my friend, in fact i read all the replies very well but i am sorry i forgot to say that all the spots have Vray IES Lights and the indirect lighting is Vray Lights not vray Light Materials (with 16 subdiv and so for The IES) the outside light is a Vray Sun with A Vray Sky and a vray Phys Cam with F-number 5.0 and Shutter 100 and Iso 100. as for your last Question i thought the reason for using Vray Sun and Sky is to Avoid adding ''Fake Lights'' or am i Wrong ? Cheers my friends and stay Cool. Link to comment Share on other sites More sharing options...
manish_mv Posted August 4, 2009 Share Posted August 4, 2009 Hi According to me Wacky is getting really closer to your problem. In my opinion choose light cache as the econdary bouce gi engine. It might solve your problem. Lets See? Link to comment Share on other sites More sharing options...
fadi3d Posted August 5, 2009 Author Share Posted August 5, 2009 Talk about Reading the answers i am using Irr and Lc Link to comment Share on other sites More sharing options...
Andrew1 Posted August 5, 2009 Share Posted August 5, 2009 try to put vray spherical light right in the middle of your room with very subtle intensity and uncheck cast shadows, that should help a bit and set HSPH subs to 80 all my final renders got 80 - 120 for hsph subs. hope it helps , cheers Link to comment Share on other sites More sharing options...
fadi3d Posted August 6, 2009 Author Share Posted August 6, 2009 Andrew i Did try The Vray Spherical Light (Affecting only the Gypsum)it didn't help as for the Hsv i used to go Max 60 i'll try to go Higher and see. thanks Link to comment Share on other sites More sharing options...
Andrew1 Posted August 6, 2009 Share Posted August 6, 2009 Last thing that comes to my mind is edit the loft geometry in poly mode, check the flip parameter, if thats not it go to edge edit parallel edges and connect a couple of times adding more geometry, I had this problem once simply the lofted object lacked geometry, I am not sure why but it was the problem on my side. Link to comment Share on other sites More sharing options...
fadi3d Posted August 7, 2009 Author Share Posted August 7, 2009 Andrew that is exactly what i tried to do.deleting some polys and recapping helped a bit but did not solve the problem. as for connecting the edges the thing is i had too many to begin with and it gave me problems i could not solve. the good news is upping the hsph to 100 helped considerably at the expence of longer calculation times.so thanks for this andrew. i hope to finish this project soon to put it in the finished work for u to comment (hopefully) thank u all for your help. Link to comment Share on other sites More sharing options...
Flying Architecture Posted August 7, 2009 Share Posted August 7, 2009 i use 100 samples everytime and it just works ... try the same Link to comment Share on other sites More sharing options...
fadi3d Posted August 7, 2010 Author Share Posted August 7, 2010 mudda thank u for ur suggestion i'll try that. Link to comment Share on other sites More sharing options...
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