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Strange lighting problem....

Posted: Thu Jul 31, 2008 5:44 pm
by Post
So... I gain I'm up late working/learning this kick a$$ addon to sketchup which has allowed me to have a nice sandblasted glass surface within my landscape. Now I'm trying to make the night shots (requirement of the design comp.) and as I adjusted the sittings the light seamed like they get brighter. So i changed the size of the light bulb (scaling it down by good 10 times) and still is seamed to get brighter. So I deleted a few lights and a bit brighter still.

I was using a blackbody light with the settings of power 5 and OAE of 5 and reduced both to .1 or lower. As I understand by decearsing the power it will decrease the light of "bulb". you can have the same effect by decreaseing the OAE? As I was trying to learn the lights i created this chart for my reference, but it did not help me at all. :twisted:

So any thoughts on how to get the lights working the way they should?
I look forward to your responses.
Thanks.
-Post-

Posted: Fri Aug 01, 2008 1:15 am
by zsouthboy
Your tonemapping is negating your light power changes - change to camera or linear tonemapping.

Posted: Fri Aug 01, 2008 1:01 pm
by Post
Thanks that works Never know that skindigo had an auto exposure.

You guys have been a great help.
Thanks.
-Post-

Posted: Sun Aug 03, 2008 7:30 pm
by neo0.
Been meaning to ask, where is linear tonemapping?

Posted: Mon Aug 04, 2008 10:22 am
by kwistenbiebel
neo0. wrote:Been meaning to ask, where is linear tonemapping?
In skindigo one only has the choice between Reinhard and camera tonemapping.
'Linear' is probably a Blendigo only function, but you can access it in the Violet tonemapper as well. (only 1.09 ,not in later versions though)

Posted: Mon Aug 04, 2008 10:25 pm
by Kram1032
Blendigo ONLY? O.o

Posted: Mon Aug 04, 2008 10:54 pm
by kwistenbiebel
Oops...actually I wouldn't know :)
I only know Skindigo doesn't have the option (but 'camera' behaves almost linear doesn't it?)

Posted: Tue Aug 05, 2008 12:45 am
by Kram1032
Yes and no... Camera is Alinear xD

reinhard must be somewhat like exponential or such.... while linear is... Well, linear :D It doesn't clamp, afaik. You can reduce the contrast and change the exposure....