Noise on glass in cycles I cannot get rid of noise/fireflies in my glass shattering scene, rendering with cycles. I've tried all of the following suggestions:


Increasing Samples (up to 4000, still tons of noise)
Filter Glossy (from .5 to 20, still no fix)
Increasing Clamp (to 5)
Increasing light source (emissions doubled, still tons of noise)
Denoising (from .25 to 1, it works but makes the image too blurry)
Caustics (turned off and on, makes no difference)
Light Path Bounce min/max equal (both set to 8, that helped but did not fix)
Multiple Importance Sampling (turned on for all tests)


Is it possible I really need to go up to 10k samples? Or, maybe there is something wrong with my glass texture, which is just "Glass BSDF" with Roughness at .1 and IOR at 1.45?

EDIT: Everything follows almost exactly a tutorial by Blender Guru found here

Here are my renders:




EDIT: Here's the render without the emission planes and with on sun light source instead. Any ideas?
I went with the following settings, which seemed to do the trick.


Removed the emission planes and replaced with a sun light source
Changed the color management to "Filmic" since that is supposed to be better with dynamic range
Used denoising to eliminate most of the grainy look
Increased the resolution of my animation to 1080p (not sure if that made a difference, but it looks better to me)