Make Rough Walls in Photoshop

[JFJohnny5]

Here's the results from some more testing. I think they all have merit. The "displace" ones use a displacement map, the names being the name of the file that is the map I'm using. The numbers refer to the scaling I used (both X and Y). The fourth one uses the crystallize method Ascension showed. For reference, the grid is equal to 50 pixels per 5ft. I think the two using the "displace2-softer" map work well for mines or other roughly hewn walls. The "displace3" map produces a more jagged edge, maybe an ominous underdark lair. While I think Ascension's crystallize method produces a very nice natural cave wall. And with Photoshop actions, these can all easily be applied at the touch of a button. Thoughts?

[JFJohnny5]

See. That's why I love this forum. I'd been messing with this problem for hours, and you guys had the answer in no time. Displacement maps are the PERFECT solution! Here's a really quick test and the method I used, for any interested.

What I did was first draw straight walls with the pen tool. Then apply a displacement map of Render>Clouds. Magic wand select the "wall" areas and expand that selection by half the width of the brush I had used to stroke the pen path (to eliminate the anti-aliasing "halo") and make a mask from that. I then inverted that selection and made another mask to represent the room and hallways. I filled those respective layers with some textures and applied a few choice effects. 2 minutes. Tops.

When I fine tune the displacement map to get the specific wall effect I'm trying to duplicate, I'll post the displacement map file along with a mini-tutorial on how to use it.