GI Light Bounce

[Yannick]

Hi,
sorry if this has been ask before but after a search I couldn't find anything about it.

So my question is how do I define the number of bounce in the irradiance map or light cache.
In the documentation, there is a sample showing 4 and 8 bounces. What is the parameter that define that?

Thanks.

Yannick

[snivlem]

You maybe thinking of "Brute force", as it has a limited number of bounces. I think Light Cache is near infinity bounces or something.

[Yannick]

Brute force has an obvious option. But according to the documentation: http://www.spot3d.com/vray/help/maya...xamples_GI.htm (see bottom of the page), you can control the bounce number for Irradiance Map.

[snivlem]

Hmmm, I don't see that.

The way it's being controlled is the second bounce with brute force? According to those examples, irradiance mapping is only equal to once bounce.

[Yannick]

Yes you are right, only the brute force has several light bounce. Thanks.

[snivlem]

No worries, if you want to control the amount it bleeds, you could probably just use the saturation option or just the engine multipliers. Good luck!