I've been in the 3D industry for a while, but I still don't really understand how things work in Iray rendering. Normally linkinn's explanation is correct. But my experience is different. While I get a noisy result at 5000 iteration with my old GTX 1080 card, I get more satisfied result at 1500 iteration with RTX 3090 + RTX 3080.View attachment 1082490
This one seems worth it. Going to let it go for awhile.
Question: when you have a proper rig with a good GPU, do you get "better" iterations?
I'm 3000+ iterations all HDRI and still getting noise. Other people are talking about doing 200 iterations with lights and no noise. Curious if your getting more bang for your buck when it comes to iteration "quality" with a GPU.
Btw you are using 8K HDRI. This greatly affects your rendering time. If you are using your HDRI as a backdop, 4K would be enough. If you are using your HDRI as a light source I would recommend you to use 2K resoluiton.