I'm trying to smooth these puppies out.
I don't need realism, just no noise. The material which light is passing through is a Principle BSDF. Using Cycles X with no reflective or refractive caustics on.

I tried the following:
- Checked the refractive caustics settings.
- Increase alpha of material.
- Modified IOR of material.
- Changed to Eevee (not desired).