In praise of progressive

[peterguthrie]

Just a quick note of thanks Vlado and the team, we find ourselves using progressive sampler more and more these days. Coupled with crazy fast xeon cpus, its a workflow made in heaven.

Hoping for continued improvement of it.

thanks!

[vlado]

For SP3 we will have proper sub-pixel filtering, so it means the progressive sampler will be able to produce 1:1 the results of the Adaptive sampler, even with sharpening AA filters.

We are also looking into more efficient criteria for adaptive sampling; the one that we have right now has worked fine for 10+ years, but is a bit too conservative (i.e. in many cases shoots way more samples than strictly needed).

Best regards,
Vlado

[3LP]

Wow, this will be awesome!
Just hoping you still have the resume feature somewhere on the todo list

[glorybound]

I haven't used it yet. What's the benefit? It's not faster, is it?

[DJH]

I haven't used it yet. What's the benefit? It's not faster, is it?

It's progressive!

[glorybound]

Yes, but it'll still take just as long to get a clean render, correct? The difference is you can stop it before it's done and have something to show for it.

[peterguthrie]

not any faster, just more convenient

[3LP]

Actually, ATM, I find that it's slower than the DMC.
Whatever render I'm doing, if I crop render and let render the DMC, and then switch to progressive and let it render for the same amount of time as the DMC, I always end up with a noisier result.

Stan

[vlado]

Some slowdown is unavoidable - keeping the image ready for display at any time takes some CPU cycles. There's quite some room for improvement though.

Best regards,
Vlado

[3LP]

I'm cool to have it refreshing way less than "real-time"
once a minute, or even a option to disable the refresh and having a button "refresh" that would refresh only when pressed would be a good solution for me.

If that was the case and we put the refresh slowdown on the side, should we expect a 1:1 noise for 1:1 rendertime?

Thanks

[vlado]

It's not purely a matter of display. V-Ray already has some logic to prevent updates from happening too often.

Best regards,
Vlado