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Sky influence trigger
Posted: Mon Jun 12, 2006 4:01 pm
by Mattia Sullini
I know this is not in maxwell's philosophy...but i would find very useful such a feature in order to have a minimum control over the amount of light cast by the sky whitout having to use hdr...maybe you had the same problem i encountered in full daylight setups, where the blue dominant is truly too strong for my personal taste.
Posted: Sat Jun 17, 2006 5:30 am
by 3dtrialpractice
YES!
i definatly REALLY would wish for this too!
We need a SKY INTENSITY setting that is seperate from sun. . the blue light is usually too intense..
right now we can adjust the sun and Sky togehter with Multilight.. BUT we need to adjust SKY intensity Independent of sun
Posted: Sat Jun 17, 2006 5:16 pm
by Mihai
you can adjust the tone of light from the sky by altering the ozone and turbidity settings. I think higher turbidity will make the light more yellow.
Posted: Sat Jun 17, 2006 10:11 pm
by deadalvs
a little setup speed could be achieved by a button that maps a specified angle to the sun. (camera view, ...)
it's difficult to position the sun exactly the way i want when i have to change days and time all the time...
any hints for that?
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deadalvs
Posted: Sat Jun 17, 2006 11:05 pm
by Mihai
If you're working in Studio you have the sundial in the viewport which gives you a hint of where the sun will be. If you really need the shadows to be exactly positioned you could import part of your scene into Studio, adjust the sun and takes note of the sky settings.
Posted: Mon Jun 19, 2006 2:09 pm
by deadalvs
yeah, did that but for a kinda-like-exact world position, my model sits in Uzbjeckiazutjenikitzistan and not in Zurich, Switzerland !!
doesn't matter, i know, but it leaves a foul CG breath...
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deadalvs
Posted: Fri Jun 23, 2006 6:28 pm
by 3dtrialpractice
Mihai wrote:you can adjust the tone of light from the sky by altering the ozone and turbidity settings. I think higher turbidity will make the light more yellow.
yes true it will make the light more yellow BUT it also BRIGHTENS the shadows (weird huh).. thats exactly why I would want a seperate "sky Intensity" value independent of the suns value.. just like we have "sky dome intensity" just for the strength of the sky..
here's test renders showing the varios turbidity values rendered..
(also the OZONE values effect how much blue the shadows/light is BUT.. the problem there is that you can only make ozone a greater value since default for ozone is .35 you can only go up from there. wich will just add more blue to the shadows.. ozone value of 0 and .35 are virtually the same render since ozone is not sensitive and you have to add it in big steps..)
edit.. so youcan see the Deepest darkes blue shadow that i get is around the 2.0 to 2.1 maybe 2.25 values.. AND for these test my Ozone value was set to 0.0 not to .35 default 0.0 so that I had the Least blue contribution from ozone.. )