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[bug/req] sss coefficients inverted in 0.9

Posted: Tue Aug 07, 2007 8:48 am
by mrCarnivore
why did you change the interpretation of the sss values? in 0.9t4.2 you have to pick the inverted colour you actually want for sss. In 0.8 everything was fine....

Posted: Wed Aug 08, 2007 7:16 pm
by mrCarnivore
OK, that post was intended for Ono, but others feel free to reply!

Did nobody understand my post, or is the issue just unimportant to everybody? :?

Posted: Wed Aug 08, 2007 7:22 pm
by OnoSendai
I wasn't aware there was a change.

Posted: Wed Aug 08, 2007 8:28 pm
by mrCarnivore
When I use blendigo 0.8 and indigo 0.8 stable the sss is blue-ish and with blendigo 0.9 and indigo 0.9t4 the sss with same values is yellow-ish.

I also checked the .igs to confirm the settings were the same. (couldn't use same blendigo for both versions since xml changes...)

seems like the sss values are inverted, just like the absorbtion values. for absorbtion it makes sense. for sss it doesn't...

I can show you test renders tonight (CET).

Strange though, that you didn't change anything... :shock:

Posted: Thu Aug 09, 2007 1:38 am
by StompinTom
probably a change in the exporter.

Posted: Thu Aug 09, 2007 2:00 am
by Kram1032
which one are you using?
SmartDenSs or Big Fan'S

Posted: Thu Aug 09, 2007 2:03 am
by mrCarnivore
StompinTom wrote:probably a change in the exporter.
as I stated in my post above, I checked the .igs to if there was a difference introduced by the exporter...Which was not the case. the .igs files are identical except for the xml changes from 0.8 to 0.9t4

I'm using smartdens blendigo

Posted: Thu Aug 09, 2007 2:04 am
by zsouthboy
Yeah, check your XML.

At some point (7test2 or so) the values WERE inverted in blendigo, but they were fixed and have been the same since...

Posted: Thu Aug 09, 2007 2:26 am
by StompinTom
mrCarnivore wrote:
StompinTom wrote:probably a change in the exporter.
as I stated in my post above, I checked the .igs to if there was a difference introduced by the exporter...Which was not the case. the .igs files are identical except for the xml changes from 0.8 to 0.9t4

I'm using smartdens blendigo
ah, my bad. sorry! gotta learn to read...