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Transparents nk
Posted: Tue Sep 23, 2008 3:41 am
by pixie
Is it a impossibility or are they planned to be supported in the future?
Posted: Tue Sep 23, 2008 4:07 am
by Kram1032
-> tabulated spectrum
Though, you need to find the data first. And that's not so simple... Google a lot and you still can't be sure to find what you search, especially on a free and open place.
Posted: Tue Sep 23, 2008 4:11 am
by Bogey Jammer
Why? have you made custom nk data? have you tried to blend a translucent material with a phong nk one?
Posted: Tue Sep 23, 2008 4:13 am
by Kram1032
Bogey Jammer, that's just not a correct approach. refraction, absorption and dispersion wont be correct that way.
Posted: Tue Sep 23, 2008 4:50 am
by PureSpider
*cough* date -> data... there is no "datas" *cough
topic: search the forum for that famous tabulated water mat for example... thats a transparent nk
Posted: Tue Sep 23, 2008 5:33 am
by Kram1032
PureSpider wrote:*cough* date -> data... there is no "datas" *cough

What? Where?

:mrGreen:
PureSpider wrote:topic: search the forum for that famous tabulated water mat for example... thats a transparent nk
Yesindeed! That's the most famous example, by CCJ

(And I think, sofar also the only one, except the huge gallery of glasses by WytRaven...)
Thank you, both of you!!!
Posted: Tue Sep 23, 2008 6:50 am
by pixie
Bogey Jammer wrote:Why? have you made custom nk data? have you tried to blend a translucent material with a phong nk one?
Because there's lot's of transparent nks, in indigo's the data folder even...
Posted: Tue Sep 23, 2008 7:17 am
by Kram1032
Nope, those are all solid. The data isn't capable for transparency

If you'd make all the transparency black, those opaque nks are how they'd look like

Posted: Tue Sep 23, 2008 7:43 am
by pixie
In
nk materials resource there's a render of all those nk and showed that some didn't render and amongst those came the transparent ones...
Posted: Tue Sep 23, 2008 7:46 am
by Kram1032
Nope, the transparent ones "didn't render as expected"
Those, which didn't render at all, have a different format, if you look into the said files. (Simply open with notepad or any other text editor... Though, you shouldn't use words or such.

)