Just wanted to get this spreading around here as well. AI denoising is making it’s way into Blender! Nothing fancy with this shader, just a simple principled shader with transparency. Caustics are notoriously difficult when it comes to denoising, but here are some promising results! The 100 samples optix render only took 11 seconds.
PS I have permission to share this, but this is all the doing of Grant Wilk (Remington Graphics.)
Render was run on my machine with 2x geforce 1080ti graphics cards. Blender 2.79