latin super cube... what?

[LarsSonparsson]

Please can someone explain me what is latin super cube path sampler?
It's located in rQMC sampler rollout.

Is there any usage of it?


-LarsSon

[Paul Oblomov]

For now - not.

[studioDIM]

It seemed to me, Paul, that the latin super cube sampler does a better job at sharper detail like fine creases and corners, than the standard one.
In both ppt and LC mode.
It's also slightly slower, but only marginally.
Please note it's an idea i have from soe personal tests, not something i heard anywhere from official sources

Lele

[LarsSonparsson]

Paul, I think you answered to both questions.

hmm...

[Paul Oblomov]

Almost forgot about LSS Will try to look at the detail enhancement, where it should be noticable.

I remember Vlado postings here
http://www.chaosgroup.com/forum/phpB...er+cube#136259

This particular scene would render with different speed compared to the older version, since there were some bugs in the 1.47.03 build (particularly with refractive materials) that made it take more shortcuts than it should (particularly for back-side reflections, I think).

As for the Latin supercube sampling, it is another way of combining pure qmc sampling with some random numbers to avoid some potential sampling artifacts. This is most obvious in PPT mode, where the default sampling may produce moire patterns over the image. Those go away with more samples, but can be somewhat distracting. The Latin supercube method does not suffer from this particular problem, although it tends to be slightly slower.

Best regards,
Vlado

[LarsSonparsson]

Thanks, that was really helpful.

I tried to search that info everywhere, but didn't find anything.


-LarsSon

[jujubee]

For some strange reason - whenever I hear of that term, Ricky Martin pops into my head. It's very bothersome.

[Paul Oblomov]

That's why, you shouldn't use VRay and never again read its manual Use maxwell or fry as it much simplier. I hear only one or two instruments in my head, when using maxwell

[Neilg]

I hear only one or two instruments in my head, when using maxwell

You keep your minimal nonsense then, I want the full orchestra

[mmikee]

For some strange reason - whenever I hear of that term, Ricky Martin pops into my head. It's very bothersome.

Thanks alot. Now it pops into my head too.

[Morbid Angel]

latin supercube resolves the hatch like pattern in the noise which is prominent to occur some times when rendering with ppt method.

[Frances]

Darn, I thought it was "Latin Super Cuban." My bad.

[Morbid Angel]

actually i think maxwell suffers from such ill fate

[jacksc02]

well said morbid!

[jujubee]

LOL Desi Arnaz...