bumpmap vs roughness x

Started by PhilippeV8, May 17, 2011, 04:00:03 AM

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PhilippeV8

I find that it doesn't change much visualy when I add a metal bumpmap compared to a roughness X value increase.

Which renders faster ?  Or is it the same ?

PhilippeV8

Hmmz, a little test render shows me that it doesn't change render speed.