Auto CPU.

[natty]

I dont really see why we have to set the number of threads for LC, cant this be automated? to stop any mistakes..

[sv]

agreed......

[vlado]

Because if you calculate frames on a render farm with different number of CPUs, you will get different light cache maps, which will lead to flickering.

Best regards,
Vlado

[natty]

I see, maybe a tick box then "auto detect"

[Klonsemann]

We are using this in our PreRenderScript.

vr = renderers.current
vr.lightcache_numPasses = sysInfo.cpucount

[3LP]

would be nice if you could may be post your prerenderscript

[Klonsemann]

There are many other things i automated for our CG Studio in PreRenderScript who are strong twisted in our workflow and server structure.
So i cannot give that scritps away.

Here are some examples:

- Renderoutputname
- auto Irradiance settings and ask for using saved file
- auto LightCache settings and ask for using saved file
- XRefObjects/Files and Proxy solving
...

[3LP]

sure, I understand

Thanks anyway for your reply, I already have that type of thinks with my scripts )

[olly]

Because if you calculate frames on a render farm with different number of CPUs, you will get different light cache maps, which will lead to flickering.

Best regards,
Vlado

Excuse my ignorance, but can someone elaborate on this? Why would you send a LC calculation to more than one machine?

Cheers,
Olly

[vlado]

For example, if you are rendering an animation...

Best regards,
Vlado

[olly]

For example, if you are rendering an animation...

Best regards,
Vlado

Why wouldn't you use flythrough mode on one machine?

[vlado]

I meant animation with moving objects; for flythough's the calculation will be done on machine, of course.

Best regards,
Vlado

[olly]

I meant animation with moving objects; for flythough's the calculation will be done on machine, of course.

Best regards,
Vlado

So in this scenario would you calculate an IR map on Animation Prepass with secondary bounces off. Then render the frames using Animation Rendering with secondary LC set to flythrough or single frame?

We're trying this out at the moment and are a bit stuck...

Thanks,
Olly

[vlado]

If you use the animation prepass mode, then you need to have the light cache set to single frame mode too in the prepass phase. In the rendering phase, you can turn off the light cache.

Best regards,
Vlado

[olly]

In the rendering phase, you can turn off the light cache.

Excuse my ignorance here, but what if you're using LC for glossies?

Cheers,
Olly