Light Cache PLEASE!

[garytyler]

I spent enough time with Vray to consider myself an intermediate with Vray settings but I moved to Octane because I could tell that Vray settings would take much more experience before I could eliminate the long trial and error period needed for optimizing each render. With Octane, there are only a handful of settings, they can be learned quickly with the resources available on the site, and setting up renders takes seconds. I think this is a lot of the appeal. Light source samples should also be adjusted when you have practicals in the scene (film making term for lights in camera view that are part of the viz) but compared to the samples nightmare of Vray, this is nothing. Also, once you start stacking GPUs, the fact that the render power stacks in parallel is major.

[DonFarese]

Thanks for all the help guys, I really appreciate it. I have read over most of the methods here, but most of the tweaking is for PT or PMC, I'm using DL + AO to try to go the fastest, unfortunately doesn't seem much to tweak to help this. I tried using the samples of the lights to help, but that didn't help either. I cannot get it to go any faster, unless I buy another video card. It seems the lighting from the IES lights and sun take a long time to clean up especially on surfaces like cabinets and wood flooring with a roughness for blurred reflections. I cannot get the lighting to look as good as vrays lightcache and the renders are more than twice the time of vray, I can solve this with more video cards but when I have to render this out with a farm I cannot find a solution.

[glimpse]

post some shots on WIP forums, maybe Guys will give You some advice based on specific situation, every scene is slightly different..maybe there's something that could be done.. =) just try..

(& Yeah, I do agree with the rest that Octane is good as is, it's better to have less mess less options & scale cards, rather than making engine too complexx eating up out time to setup scenes..)

[DonFarese]

post some shots on WIP forums, maybe Guys will give You some advice based on specific situation, every scene is slightly different..maybe there's something that could be done.. =) just try..

(& Yeah, I do agree with the rest that Octane is good as is, it's better to have less mess less options & scale cards, rather than making engine too complexx eating up out time to setup scenes..)

Okay I'll see about posting some images, I use Vray a lot, so setting up for me is quite easy. But I really wanted to use Octane because of the GPU speed, but it seems in interiors it's having a lot of trouble. Also how come when I try to use PMC it does nothing, and in the log it says:

Started logging on 08.05.15 13:55:51

OctaneRender version 2.04 (2040000)

PMC kernel: Unsupported compute model (52)
device 0: PMC failed

Once again thanks for all the help guys!

[grimm]

Hi Don,

You need to upgrade to the new version of Octane. The Titan X is a Maxwell card (compute 5.2) and is not supported with PMC in version 2.04. I don't remember now which version started supporting the new Maxwell cards. Either way I'm pretty sure that on later versions the Maxwell cards got significant optimizations. My 980 went from about the same speed as a 680 to now where it is faster than a Titan. This may really help with your noise issue?

[glimpse]

any unbiased render is going to have problesm with interiors..but the looks is going to better.

I'd say cutting out wals doing fill lighting & stuff like that might give You a possibility to cut corners & minimise rendering time..

as for error mesage..I think Your version of Octane is too old for Your GPUs - get the latest one form forums =) & You should be able to run jsut fine!

[DonFarese]

any unbiased render is going to have problesm with interiors..but the looks is going to better.

I'd say cutting out wals doing fill lighting & stuff like that might give You a possibility to cut corners & minimise rendering time..

as for error mesage..I think Your version of Octane is too old for Your GPUs - get the latest one form forums =) & You should be able to run jsut fine!

That should be the latest I downloaded it from the location it told me when I bought it. but why does it say 2.04 when it should be 2.23

[DonFarese]

I just installed the latest build and it helped a lot, I have no clue how I ended up with 2.04. But the noise from the lights are cleaning up much faster.

[glimpse]

I just installed the latest build and it helped a lot, I have no clue how I ended up with 2.04. But the noise from the lights are cleaning up much faster.

yeah Guys done quite some optimisations for engine + added few new parameters that might get helpful..
As mentioned before, post some shots, test renders & others migh help You out to understand where the noise comes in Your case & how to fight it =)