Understanding DMC Sampler

[vlado]

Vlado, do you think you could have the same check on my scene ?

Where can I get the scene?

Best regards,
Vlado

[3LP]

Is it one of my hdri skies? Have you tried reducing the gamma to 0.75 to get more direct light in there?

yeah it is, but no I haven't put the gamma to .75, will try though

[3LP]

Where can I get the scene?

Best regards,
Vlado

Thanks Vlado, I send you the scene through PM

[grantwarwick]

PM me the scene and I'll take a look.

Your Sample rate is all over the shop

[grantwarwick]

yeah it is, but no I haven't put the gamma to .75, will try though

Changing to .75 will make vrays importance sampling job on the HDR harder due to a larger tonal range....

[peterguthrie]

Can you get me this scene? I'm running V-Ray through various scenes to try and profile the performance; it is useful to see which parts of the code take the most time so that they can be optimized.

Best regards,
Vlado

sent you an email Vlado

[grantwarwick]

Very hard hard scene to speed up 3LP but I'll give it a proper crack tonight.

As a 3D artist in the print industry I haven't encountered fully GI lit scenes as I don't do Arch Vis but from a technical stand point I'll give it a crack.

[3LP]

Thanks Grant for your interest!
Yeah it seems to be a tough one.
Interesting though

Cheers
Stan

[GoncaloP]

Hi 3LP,

I've spend to much time appart from 3D and Vray, but now I'm back again to it. I would like to give a try on your scene because from the images you have posted I see no reason to wait more than 1hour for a final clean result.

Kind regards,
Gonçalo

[grantwarwick]

Hi 3LP,

I've spend to much time appart from 3D and Vray, but now I'm back again to it. I would like to give a try on your scene because from the images you have posted I see no reason to wait more than 1hour for a final clean result.

Kind regards,
Gonçalo

Good luck with that haha

[GoncaloP]

Good luck with that haha

Hehe he didn't sent me the scene! No need any luck after all.

Cheers

[Dariusz Makowski (Dadal)]

I was working on his scene for a while. As far as I can tell I dumped down his HDR method and moved to Sun and Sky. The IBL was too hard to interpolate to make in clean enough. With that change I got render times down by a bit but still lots to do.

Thanks, bye.

[3LP]

Yeah, same here, I reverted to a normal plane light and still it's taking ages, I think it's just because 99% of the light is comming from BF, and with glossy materials, it kills it.

Stan

[cecofuli]

Ohh... welcome back GoncaloP !!!

[Dariusz Makowski (Dadal)]

I havent started with materials yet. I was testing with gray shader just to fine tune noise settings for light pass and GI.

Once I got that cover I'll wrap up materials. Naturally it looks totally different than your renders in max(my in maya) but my goal is to get it rendered fast with little noise.Then fine tuning color balance and shaders should be piece of cake. Will send you updates once I have some.

Thanks, bye.