Page 1 of 1

Bump strenght - I'm missing something super-obvious!

Posted: Wed Aug 30, 2017 3:27 pm
by ThomasVandenAbeele
Hi,

I'm making some cardboard boxes, super-simple stuff. But I can't seem to figure out how to reduce the bump strength of the procedural bump texture I have!

How do I do this? I have a noise texture feeding into the bump channel, all working well, but contrary to my expectations, neither contrast nor gamma seem to have any effect on the bump texture.

All help greatly appreciated, as I'm sure I'm missing out on something very, very basic!

Thanks!
Thomas

Re: Bump strenght - I'm missing something super-obvious!

Posted: Wed Aug 30, 2017 3:50 pm
by Builtdown
Maybe use Turbulence procedural. It has at least Power-attribute.

Re: Bump strenght - I'm missing something super-obvious!

Posted: Wed Aug 30, 2017 5:04 pm
by FrankPooleFloating
If it is a real subtle bump you are after like on cardboard box etc, you will want a Power value of something like 0.04, and maybe even way less...

Re: Bump strenght - I'm missing something super-obvious!

Posted: Wed Aug 30, 2017 6:31 pm
by Builtdown
The problem is probably that Noise Procedural does not have Power value...

Re: Bump strenght - I'm missing something super-obvious!

Posted: Wed Aug 30, 2017 7:58 pm
by gristle
Run it through a colour correct node and use the brightness to control the strength?

Re: Bump strenght - I'm missing something super-obvious!

Posted: Wed Aug 30, 2017 8:03 pm
by FrankPooleFloating
Turbulence should give you the effect you want.. you just need to scale it way the hell down.. like 3%-5% or so, for cardboard etc, with a very low power.