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




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..suhail_spa wrote:its acting like a lens..
maybe using a thin layer of glass would help- with low IOR..
good concept btw..