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Architectural viz - closed
Posted: Sun Jan 06, 2008 12:46 am
by Posiadala
Hi everyone
I've baked this one:
By
kamilp
My employer wont me to add some volumetric lights from sun. I can't achive good efects about that. I've tried placing up all building in box witch paricipating media material, but it just coused fog in scene, but no volume light.
Any advices?
THX in Advance.
Posted: Sun Jan 06, 2008 12:48 am
by dougal2
You did the right thing, except you need to lower the scattering value. You only need very little scattering to get subtle sun rays.
Try dividing your scattering value by 100,250 or 1000.
Posted: Sun Jan 06, 2008 1:28 am
by Kram1032
O.o I don't see any scattering xD
Posted: Sun Jan 06, 2008 1:53 am
by Behrendt
Maybe because it's the version without participating media?
Posted: Sun Jan 06, 2008 2:07 am
by Posiadala
THX for quick reply, I'm working on it. I'll post results later. And yes, there is no media on posted picture.
Posted: Sun Jan 06, 2008 5:17 am
by Posiadala
ok, so here is first render: sssColor R=G=B=0,014, gain=10
By
kamilp
it is too foggy, so next is: sssColor R=G=B=0,007, gain=10
By
kamilp
it's less foggy, but still no visible volumetric light. What am I doing wrong??
Posted: Sun Jan 06, 2008 5:21 am
by dougal2
the second one looks about right. I can see streaks coming down through the middle of the picure. Just let it cook longer.
Posted: Sun Jan 06, 2008 5:48 am
by Posiadala
thx dougal2, I'll let it run all today night, and post restults tomorrow.
Posted: Sun Jan 06, 2008 6:08 am
by BbB
Yes you need a long time for those rays to appear. The "fog" also dissipates a bit after a while as the details sharpen.
Beautiful scene by the way. Amazing!
Posted: Sun Jan 06, 2008 11:41 am
by Posiadala
Thx BbB. I'm a silent admirer of Your works on this forum, so I'm very glad You like It.
Before setting up render for night I've made one more:
this time sssColor is R=G=B=0.005. It baked for 5h, and no streaks appeard.
So for night render I'm getting back to 0.007. Hope it will work
btw: does the IOR of my participating media matters for streaks to appear? And what is atmospheric media type for?
Posted: Sun Jan 06, 2008 11:54 am
by dougal2
IOR should remain at 1.0 for atmospheric scattering.
I'm not sure what you mean by atmospheric media type.
Posted: Sun Jan 06, 2008 12:39 pm
by Posiadala
in blendigo there is a combo box titled Medium type ( specular material ), contains options:basic ( I'm using it currently for volumetric effect ), dermis, epidermis and atmosphere.
Posted: Sun Jan 06, 2008 12:40 pm
by Kram1032
I can see first rays
Patience, young Padawan ^^
Well, anyway ^^
the atmospheric media is for a different, more complex but also far slower sky system. It's not useful, in this case, because
1) It'd take more than ages (longer than a week, under circumstances)
2) The scattering is very very weak. It's scattering as strong as real air, which means, it only visible over extreme distances
safely ignore it, for now.
Posted: Sun Jan 06, 2008 12:54 pm
by dougal2
kram, do you know the XML, or where the reference is for this feature ?
GODDAMIT ONO WHERE'S THIS UPDATED MANUAL ?
Posted: Sun Jan 06, 2008 12:57 pm
by Kram1032
In the clouds-thread and also scattered in other threads, all over the forum, sadly
Did you notice? Ono didn't reply to anything since a few days...
And he also is/wasn't in the IRC...
Three possibilities:
He makes a break
He'll *BOOM* surprise us with something amazing and entirely unexpected
He stopped development O.o
