Adding randomness to tiles?

Eric Chadwick

I vaguely recall a couple tutorials about how to add randomness to tiled textures in UDK. For example to darken floor tiles in semi-random patterns. I think one was in a steam room, created for one of the contests here?

Anyone have any links for tutorials like this?

Not just vertex blending between a couple maps, but adding automatic variation via some material magic...?

Eric Chadwick

Hmm, I found a couple, searching for "udk material variation"

Chris Albeluhn - UT3 - Adding variation to a repeating texture pattern
Chris Albeluhn - UT3 - Adding Brick Variation
Chris Albeluhn - UDK - Mesh Position Offset the Materials Texture


I recall another one about a wood fence material, but I can't seem to find it.

Der Hollander

I found the Bathhouse thread by JordanW, but I think he used a texture to create a tile pattern. Depending on your application, I would use a blend between the pattern tile approach and maybe some sort of difference cloud layer to add just a bit of variation.

The Object Position Offset is a really cool technique as well. I do really like Tor Frick's Vertex Painting method, but it sounds like that's not what you're looking for.

I worked with some folks awhile back that were able to create variation in foliage by plugging in a WorldPositionOffset to a range of greens (I assume it was clamped and component masked) and multiplying the resulting vector onto the actor's diffuse.

I dunno if any of that information is super helpful but maybe you'll get some ideas out of it.

Eric Chadwick

I remember the bathhouse piece but forgot who made it, thanks for the link! Good ideas too. Will add these to the wiki.

Eric Chadwick

OK, added some links here. Thanks again.
http://wiki.polycount.com/Multitexture