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Kerkythea Rendering System • View topic - Adjusting Final Gather settings for PMFG
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Adjusting Final Gather settings for PMFG

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Fletch

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Post Tue Sep 07, 2010 9:57 pm

Adjusting Final Gather settings for PMFG

not really a great tut... but if you are experimenting with render settings...
and want to get rid of the light splotches or flares you see in a rendering.

be sure of course you have no perfectly saturated material and all of them obey the laws of physics (that is that they are not reflecting more light than they are receiving... see the material manual (link in my signature)

then, to avoid light splotches / flares:

apply your render setting to your scene,
you will base your custom render setting upon the preset you choose.
now increase final gather depth by 1 digit, and accuracy,
so if they are at 1 in the setting you are using, try 2, then 3 until they go away. maybe increase tracing depth for FG to 6.
FG rays to 500 is a good start as well... 2000 may even be overkill if you decrease it to 500 but increase your depth of bounces, and increase the accuracy, you can get good balance between speed and value.
Attachments
customrendersettingsteps.jpg
finalgathersettings.jpg
Last edited by Fletch on Wed Apr 06, 2011 3:03 pm, edited 1 time in total.


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Fletch

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Post Tue Feb 15, 2011 11:37 pm

Attachments
Benchmark_TeapotMuseum_RealScale-clay-SketchUp.zip
SketchUp Scene
(496.17 KiB) Downloaded 965 times
NoTextures_Benchmark_TeapotMuseum_RealScale.kzx
Kerkythea Scene
(297.04 KiB) Downloaded 928 times
Last edited by Fletch on Wed Feb 16, 2011 12:02 am, edited 3 times in total.


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Fletch

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Post Tue Feb 15, 2011 11:59 pm

Attachments
_0000_sun-int-prelim.jpg
A &quot;prelim&quot; quality Final Gather setting.
_0001_sun-int-low.jpg
A &quot;low&quot; quality Final Gather setting. (not bad, really! could maybe be good for animations) THIS SEEMS TO BE THE &quot;SWEET SPOT&quot; for speed/quality.
_0002_sun-int-med.jpg
A &quot;Medium&quot; quality Final Gather Setting.
Last edited by Fletch on Sat Mar 19, 2011 1:57 am, edited 5 times in total.


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Fletch

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Post Wed Feb 16, 2011 12:11 am

Attachments
_0003_sun-int-high.jpg
A &quot;high&quot; quality Final Gather setting.
_0004_sun-int-fine.jpg
A &quot;fine&quot; quality Final Gather setting.
_0005_sun-int-veryfine.jpg
A &quot;very fine&quot; quality Final Gather setting.


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Fletch

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Post Wed Feb 16, 2011 1:02 am

other experiments for the curious - these were the "fails" either because one of the settings shown above is faster or of equal or better quality when compared with render times.
Attachments
_0021_2500-1-Mod-10000-4.jpg
_0020_2500-1-mod-50000.jpg
_0019_2500-2-mod-50000.jpg
_0018_900-1-coarse-1000000.jpg
_0017_900-1-coarse-10000.jpg
_0016_400-1-fine.jpg
_0015_60-2-perfect.jpg
_0014_100-2-veryfine.jpg
_0013_100-fine.jpg
_0012_200-2-fine-5000.jpg
_0011_200-2-fine-50000-6.jpg
_0010_200-2-fine-50000-2.jpg
_0009_200-2-fine-1000000.jpg
_0008_400-2-moderate.jpg
_0007_400-2-fine.jpg
_0006_600-2-fine.jpg


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notareal

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Post Sat Feb 19, 2011 9:59 pm

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atreus

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Post Sun Mar 06, 2011 3:42 pm

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LAPX

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Post Tue May 03, 2011 5:36 pm

Thanks Fketch! This will help many. :D
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Sergio

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Post Wed May 04, 2011 1:39 pm

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SerCroJoe

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Post Tue Aug 27, 2013 7:37 pm

Re: Adjusting Final Gather settings for PMFG

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SerCroJoe

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Post Tue Aug 27, 2013 7:52 pm

Re: Adjusting Final Gather settings for PMFG

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Fletch

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Post Thu Aug 29, 2013 12:05 pm

Re: Adjusting Final Gather settings for PMFG



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SerCroJoe

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Post Fri Aug 30, 2013 5:54 pm

Re: Adjusting Final Gather settings for PMFG

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Fletch

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Post Fri Aug 30, 2013 8:39 pm

Re: Adjusting Final Gather settings for PMFG

When you "apply" an existing render preset, all that does is pre-load them into the render settings panel for you. Then you open up the render settings panel and do your further tweaking there.
for ever after that, if you are tweaking render settings in the render settings dialog panel, then when you do your test renders you must always choose Render>Start>Settings> "##custom settings##"
If you change that to say something different then, you will basically undo any tweaks you made to the settings.

If the settings you "apply" are the exact same settings as are in the Render Settings Dialog Panel, then the render time will be exact same. It can not possibly be different.

Yes, if you are trying to get render times down, you will sacrifice quality. If this were not so, then we would have photoreal quality in zero time... and I have not yet seen that in any product.

regarding locking the light cache - it will be only the moment before you render the animation... see this:

did you yet successfully even lock the light cache?


see also



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