Adaptive sampling?

sigh… I hate asking what seem like they should be noob questions…

OK, first, I’d be testing this myself, but cant until tomorrow and I’m on a bit of a time crunch…

Does anyone know if there is a way to do adaptive sampling somehow?

I’m running an animation with the build modifier. There is nothing in the scene at the start save a floor and 2 walls forming a corner. I’ve found I need around 200 samples to get a usable result in the full scene. But there’s no reason to use 200 samples on 2 walls and a floor. They’re fine with maybe 30.

Can I keyframe the samples? Or is there an adaptive sampling option that takes more samples as the scene gets more complex? Or am I missing something completely?

Sorry, never had reason to think about this before. My projects have generally been on my own time so I could just say “200 samples, gonna go see a movie while it runs.”

Firstly, wrong forum section. This section is for for finished tutorials.

As for your question, 200 samples may render in a couple of seconds to a couple of hours per frame depending on how powerful your machine is and how complicated the scene is. Animations especially take a long time to render and most people subscribe to render farms where you can either pay monthly or contribute your own machines to the render farm when you’re not using them.

Have you tried playing with the render settings? Playing around with light paths is a good way to get faster rendering times.

Moved from “Tutorials, Tips, and Tricks” to “Lighting and Rendering”

You can find out about development of Adaptive Sampling branch and builds available for Linux/Windows here:

Hi Teltower Damm 197, depends on your scene you can check daily builds of Blender including denoiser.
If you can build Blender by yourself you can apply a new patch with adaptive sampling.
There was some builds of it but cant find it anymore.

https://builder.blender.org/download/

https://developer.blender.org/D2662

If you can upload the .blend we can check your render settings, may there is something to improve.

Cheers, mib
EDIT: Foud it : http://blender.it4i.cz/research/adaptive-rendering-based-on-a-norm-of-rendered-pixels/