wedekiba Posted September 29, 2009 Share Posted September 29, 2009 (edited) I recently have been working on this rendering of a kitchen, but nothing I do seems to get rid of the "dirty" nature of parts of the rendering. I have tried a lot of different setting changes and tried higher quality setting that make it render for eight times the length, but nothing seems to work. Please Help. Also if anyone has any other helpful comments about any aspect of the rendering that you think might improve it please comment. Thank You. Edited September 29, 2009 by wedekiba Link to comment Share on other sites More sharing options...
videep Posted September 29, 2009 Share Posted September 29, 2009 Hmmm..Nice kitchen but the boltches ruin it... Here's what i do for rendering... FIRST OF ALL select all the lights that you have in your scene, If they are vray lights, uder sampling, increase subdivs to 16. If other lights, go to vray shadow parameters and change the subdivs to 16. Do it for all the lights. If too many lights i.e. put subdivs to 12. Under DMC sampler in the settings tab in the vray render setup, change the min samples to about 15. - Use adaptive dmc with antialiasing filter catmul-rom. - Put the Ir map current preset to Medium. - Change the interpolation samples to 30. Link to comment Share on other sites More sharing options...
Joseph Petrino Posted September 29, 2009 Share Posted September 29, 2009 Your long render times are coming from your "Noise Threshold" setting of .001. Setting it to .01 (the default) works great with a "high" irrandiance map. I agree about light subdivisions set to 16. If they are vray lights try checking "store with irrandiance map" I get much cleaner renders with that. Good work by the way. ps At final render I also change the global subdivs multiplier to 2, for a really clean render. Link to comment Share on other sites More sharing options...
videep Posted September 29, 2009 Share Posted September 29, 2009 Your long render times are coming from your "Noise Threshold" setting of .001. Setting it to .01 (the default) works great with a "high" irrandiance map. Hi Joseph, Well i am wondering as to shy increasing the noise threshold from .001 to .01 will give a clean render... I always thought that putting the noise threshold to low will give noise less renders and it did even happen as for my previous render i kept the noise threshold to .001 and light subdivs to 16. I would like to know if i am worng coz i am a bit confused. Not contradicting you but a bit confused.... ThankYou... Link to comment Share on other sites More sharing options...
wedekiba Posted September 29, 2009 Author Share Posted September 29, 2009 Thanks for the quick replies. I'm going to try upping upping the light subdivisions and the global multiplier with a few other changes and see what happens. Thanks guys. Link to comment Share on other sites More sharing options...
videep Posted September 29, 2009 Share Posted September 29, 2009 You are welcome buddy...will wait to see the next render..... Link to comment Share on other sites More sharing options...
wedekiba Posted September 29, 2009 Author Share Posted September 29, 2009 Hey, so I upped my vray light subdivisions to 16, Global multiplier to 2, irradiance map settings to medium with interp. samples at 30, and noise threshold to .005. It helped but not as drastically as I had hoped and the render time increased a good amount. I just rendered a cropped section but it still shows the "dirt". I attached the cropped render. Any more suggestions ? Thank You. Link to comment Share on other sites More sharing options...
videep Posted September 29, 2009 Share Posted September 29, 2009 AAH..thats annoying. Can you tell me how many lights do you have in the scene? and what about the min samples just above the global subdivs, what is the number ther?? And what is the Adaptive amount?? Link to comment Share on other sites More sharing options...
renato Posted September 30, 2009 Share Posted September 30, 2009 I'd turn on detail enhancement and raise subdiv. multiplier to 0.8 or even 1.0. It usually solve my blotchiness problems. See if this works for you. Link to comment Share on other sites More sharing options...
wedekiba Posted September 30, 2009 Author Share Posted September 30, 2009 Hey, So I tried out turning on the detail enhancement and it helped A LOT. Its not perfect, but much much better than it was. THANK YOU. Link to comment Share on other sites More sharing options...
Joseph Petrino Posted October 1, 2009 Share Posted October 1, 2009 Hi Joseph, Well i am wondering as to shy increasing the noise threshold from .001 to .01 will give a clean render... I always thought that putting the noise threshold to low will give noise less renders and it did even happen as for my previous render i kept the noise threshold to .001 and light subdivs to 16. I would like to know if i am worng coz i am a bit confused. Not contradicting you but a bit confused.... ThankYou... Videep The noise threshold comment was regarding long render times. In my experience .001 increases render times a lot and adds very little to the render. Link to comment Share on other sites More sharing options...
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