And then there was light

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radiant
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Hello guys,

Here is a simple scene i made a while ago.
The only light source is the strings.
I made four to show difference exposers, iso and camera filters.

It was a over night render.

Time:11.21 Hours
Pathtracing
GTX 580
2K downscaled

Image

Image

Image

Image
Win8 Pro 64bit ULT|Intel Core i7 3930K|3.20 GHz|32 GB RAM|GTX 590|UD5 2011 socket||2x TB HD||Master Cooler HAF X||Blender 2.6||Maya 2012||Octane|
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necko77
Posts: 323
Joined: Thu Jan 21, 2010 11:27 am
Location: Bosnia&Hercegovina

something is wrong with your glass
Attachments
11_12_52---Electric-Light-Bulb_web.jpg
ArchiCad, Blender, Moi3d
GTX 580 3GB
Win 7, 64 Bit
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lixai
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Location: Romania, Bucharest
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it's refracting like it's filled with glass
Core i7 860, ZOTAC GTX 580 - 3GB, 2 x GTX TITAN, 32Gb RAM
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suhail_spa
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Joined: Tue Nov 16, 2010 9:51 am

its acting like a lens..
maybe using a thin layer of glass would help- with low IOR..
good concept btw.. :)
DELL Precision M4500 Laptop (win7 -64bit, Intel core i5 M520 2.4Ghz, 4Gb, Quadro FX880 1Gb, PCI express slot)
with GTX 460 -2GB (running on home-made GPU-expander)
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radiant
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Yeah, the glass was a quick slap stick specular put on.
and i will add more glare to the strings next time around.

cheers :)
Win8 Pro 64bit ULT|Intel Core i7 3930K|3.20 GHz|32 GB RAM|GTX 590|UD5 2011 socket||2x TB HD||Master Cooler HAF X||Blender 2.6||Maya 2012||Octane|
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acc24ex
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suhail_spa wrote:its acting like a lens..
maybe using a thin layer of glass would help- with low IOR..
good concept btw.. :)
yes that's the problem, that was already mentioned a couple of times, everything inside the light bulb acts like its filled with glass, that's probably why we need a thin glass shader..
but you have to add another layer inside the light bulb like in real life so it has a thin glass layer.. or change the IOR to soemthing really low.. I know i've been testing out lights inside orbs to get diffuse lights, it's tricky, octane needs more fancy effects for that :)
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radiant
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Cheers, the render will be improved the next time around
Win8 Pro 64bit ULT|Intel Core i7 3930K|3.20 GHz|32 GB RAM|GTX 590|UD5 2011 socket||2x TB HD||Master Cooler HAF X||Blender 2.6||Maya 2012||Octane|
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justix
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Joined: Sat Feb 27, 2010 8:01 pm

Something similar was posted by me a while ago rising the issue of emitting the wire correctly (glow) like in a real bulb and I see that the new kernel still need to address the issue

http://www.refractivesoftware.com/forum ... 068#p38068

p.s. 11hours? 2XGTX580 ?? seems a very long time to me...
Win 7 64 | 2 X MSI AERO GtX 1070| Intel I7-6850K| 32 GB DDR4 RAM | Asus X99 II-A
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