HI guys, I already tested Octane 4 - experimental build.
Besides many improvements under the hood - the only speed gainer at the moment is the AI denoiser (and AI Light which I didn’t test)
But denoiser is not bulletproof - at least not yet.
First, it doubles the amount of vram used - so if your scene uses 800MB - with denoiser it is 1.6GB
It’s is not 100% perfect solution - some artifacts are still visible in some cases - especially when specular material is close to glossy or diffuse surface.
It also slows down render speed a little - like 1 - 2 %.
Overall it is a speed gain, but not always, and it is not some magic 2h to 2m render time trick. But it is experimental build - things will change I presume.
And free Octane4 license for 2GPUs is only for upgrading from earlier versions - that’s how I understood the video - but now I’m not sure.
If you have more questions - let me know.