View Full Version : Putting Dirt in details.

02-18-2011, 05:50 AM

Im trying to make a brass/goldish material for a viking style brooch im working on, The material i have looks alright, not stunning, and requires more work, but theres something i'm stuck with.

The object has various small details, small rings where the stones are placed, and I want to add "dirt" to these areas, but only to these areas, and i have no idea how to do this.

I figured that there would be a node that I could just use that would allow this but I am yet to find it.

Ideally I want the dirt to be in the areas which have an angle, however it can not be an angle of incidence, I need it to stay in one place and render in the correct place for a surface baking map.

Also, any tips on how I can improve the texture in general very appreciated (be polite!)

Thanks for your time!


02-18-2011, 07:24 AM
I use occlusion node and a mixer node for stuff like this. The occlusion node will make the other color/bump more visible closer to the intersection point where the geometry meets or creases.

02-18-2011, 07:25 AM
You should look into using the 'grit' node for this type of effect.

You could also use a weight map to help control the areas you want to have the dirt with the grit node as well.

There is also another discussion going about worn edges on models too: http://newtek.com/forums/showthread.php?t=115820


02-18-2011, 09:52 AM
Thanks for the reply's. Ill try these later when im back in front of it!

02-18-2011, 10:45 AM
As Jeffry said, Grit node may be useful: http://katastro.fi/~eetu/gritnode/



02-18-2011, 01:25 PM
Vittu ku toi on siisti node saatana!

02-18-2011, 01:29 PM
Wow, such profanity over a bronze cat.

02-18-2011, 02:17 PM
Indeed. A simple 'cool node' reply would have sufficed.

02-19-2011, 02:39 AM
Well i can report that the grit node did exactly what I wanted, so thank you for the replies and advice!

Now to learn how to control it properly :D

Thats a really great cat by the way!

02-19-2011, 09:37 PM
Weight maps do the trick too. I'm not a fan of Grit node because it doesn't give very smooth results on small parts and I do a lot of small parts.

02-26-2011, 11:55 AM
camerabake it out to a UV, then retouch it in Photoshop...