I have been messing around with trying to emulate a light bulb in Cycles. However, after several days I am still no closer to producing a final render. All my renders are too noisy. I want the entire scene to be lit by the light bulbs only. I also have cobbled together a node tree to limit the range of the light bulbs so they have “real” fall off and produce hotspots on the floor or geometry. The emission material is applied to the bulb filament (which is fairly small). The bulb glass is a mix between glossy and diffuse controlled by a Fresnel mix factor.
I am posting the scene if any of you node gurus want to take a look or have advice?
Here is what I get after 9000 sample render.
Here is what I get after 90 sample render.
So the sample time does not seem to be the problem. I can’t just wait and it will clear up.
Can Cycles emulate a light bulb to produce a clean render or is this simple task beyond our new favorite render engine?
27_noisy_emission_light.blend (734 KB)