progressive or bucket? that is the questing

[oren]

progressive or bucket? that is the questing

when you using vray 3.4 and above

in case you want to use brute force and light cache.... do you use for final products progressive render or the old bucket method?

its look like all the modern engines go for progressive...

thanks

[Deflaminis]

Sometimes you need a screwdriver, sometimes you need a hammer...

[thanulee]

I prefer buckets for final, i find it more predictable. Maybe is just an illusion though, since u have a certain noise threshold in progressive, but im old school hard to try new things

[vlado]

If you don't need to see the intermediate results and you need maximum performance for a given noise threshold, it would be best to go with the bucket sampler. It tends to work better with DR as well.

For tests, or when you are not sure how long the render will take, the progressive sampler is more convenient.

Best regards,
Vlado

[thanulee]

Vlado, does progressive produces the exact same results with the same noise threshold on buckets? Can it be used for final production instead of buckets or its purpose is more like fast look developement? thanks

[vlado]

Vlado, does progressive produces the exact same results with the same noise threshold on buckets?

Yes.

Can it be used for final production instead of buckets

Yes.

Best regards,
Vlado

[AC5L4T3R]

I use progressive for stills and buckets for animation. We've got an animation rendering at the moment thats taking about a week, we went with bucket because 1hr progressive doesn't give uniform results.

[LudvikKoutny]

I generally used progressive because speed and quality felt similar, but recently became skeptical about it as i got about 4* faster rendertime with buckets when rendering some PhoenixFD smoke sims. It also cleans up alpha channel matte shadows a lot better.

It would be nice if progressive renderer was iterated upon to be more reliable. I will have to revert to using progressive for previews only, and switching to buckets for finals.

[vlado]

recently became skeptical about it as i got about 4* faster rendertime with buckets when rendering some PhoenixFD smoke sims.

This is specific to Phoenix only and is something for the Phoenix guys to fix. Phoenix deliberately turns off some optimizations for the progressive sampler in order to provide faster feedback.

It also cleans up alpha channel matte shadows a lot better.

Is this in 3.50? We specifically made some improvements there; 3.40 did not look at the alpha channel at all.

Best regards,
Vlado

[LudvikKoutny]

Is this in 3.50? We specifically made some improvements there; 3.40 did not look at the alpha channel at all.

Nope. 3.40. Will test 3.50 asap

[^Lele^]

It would be nice if progressive renderer was iterated upon to be more reliable.

Bucketed is progressive by the bucket.
Besides Phoenix, and the lower usage by end of rendering due to too few pixels (that's the "hanging bucket", in bucket money. Not something specifically down to progressive rendering at all. Its solution lies elsewhere.), what should be made more reliable?

[LudvikKoutny]

I don't know exactly yet... So far only these two things concerned me (PhoenixFD performance and alpha channel not being sampled properly) I will do some more tests on my scenes to have some hard data. So far it's been combination of the impression that if those two things are broken, then who knows what else can be, and that with Progressive, I had sort of general feeling it leaves away a bit more of pixel-fine noise at places, something that bucket renderer cleaned up better. It felt like image filter maybe reacts different. I will have to do some tests.