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Subject: What does irradiance do exactly? max to 100%

MistyLaraCarrara opened this issue on Oct 31, 2014 · 9 posts
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MistyLaraCarrara ( ) posted Fri, 31 October 2014 at 9:00 AM · edited Thu, 28 May 2026 at 3:42 AM

i max my irradiance render setting to 100%, i feel like renders looks better, but maybe it's my imagination?

does it have anything to do with glow and idl?

it doesn't seem to effect shmootz.

Thanks 😄


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Miss Nancy ( ) posted Fri, 31 October 2014 at 1:03 PM · edited Fri, 31 October 2014 at 1:18 PM

with no irradiance caching, results using IDL not subject to random method of FFRender.  artifacts are reduced or eliminated.  (PP2012 and PP2014 (SR5 and later).

setting IC = 100  in render options not same as unchecking IC in render options.

e.g.  IC = 100 yields IDL IC = 95, meaning giMaxError is still nonzero (0.05).  you gotta use d3d's FFRender script for easier control.


vilters ( ) posted Fri, 31 October 2014 at 1:30 PM

 Sorry, but with this Crimi-Clown site lay-out, I"ll stop anwering questions completely untill restored to a usable format..

Poser 1, 2, 3, 4, 5, 7, P8 and PPro2010, P9 and PP2012, P10 and PP2014 Game Dev
"Do not drive faster then your angel can fly"!

MistyLaraCarrara ( ) posted Fri, 31 October 2014 at 1:54 PM

if fixes a glitch with IDL?
i don't have the uncheck IC render option.  
i've been using irradiance = 100% since P7.

but, was wondering what irradiance does exactly?

does it improve specular highlights, maybe? to be coupled with a specular light?


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MistyLaraCarrara ( ) posted Fri, 31 October 2014 at 2:30 PM

Ohhh there's an Advanced Render Settings 2?

hmmm no way to attach a screencapture?


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bagginsbill ( ) posted Fri, 31 October 2014 at 2:33 PM

http://www.rorydriscoll.com/2009/01/18/irradiance-caching-part-1/

Renderosity forum reply notifications are wonky. If I read a follow-up in a thread, but I don't myself reply, then notifications no longer happen AT ALL on that thread. So if I seem to be ignoring a question, that's why. (Updated September 23, 2019)

MistyLaraCarrara ( ) posted Fri, 31 October 2014 at 5:59 PM

thanks :)


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MistyLaraCarrara ( ) posted Fri, 31 October 2014 at 6:10 PM

so basically a pixel is borrowing light calculations from it's neighbors?


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bagginsbill ( ) posted Fri, 31 October 2014 at 8:29 PM

Yes. The lower the IC quality, the more borrowing happens. This saves a lot of time.

Renderosity forum reply notifications are wonky. If I read a follow-up in a thread, but I don't myself reply, then notifications no longer happen AT ALL on that thread. So if I seem to be ignoring a question, that's why. (Updated September 23, 2019)

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