Optimize Scene with many emissive objects

[[email protected]]

Hi all

So.. I have many instances of a light bulb geo + its filament, which is a surface blackbody emitter. The instances are cloned along splines in order to create the letters of a broadway sign. (screen shot attached)

The render times are longer than expected and the filament emissions are noisy, unless I crank up the samples to around 20,000 PathTracing.

I am wondering if I'm missing any Octane/C4D tricks for scene / render optimization.

Some thoughts:

Should I be using something other than C4D Instances for duplicate geo/lights?

Should I use tiny Area lights within each bulb rather than the filament as emissive geo?

Much Thanks

[dbalzer]

Hi Mark,

Try to not go above 1 in the power settings of the lights and increase brightness by adjusting exposure in cameraimager. It seems that this decreases noise levels by keeping render times quite low.

Dan

[[email protected]]

Thanks, Dan! I'll give it a try.