Is there a simple way to do this?

Sage

I was wondering if there was a simple way to create the cool organic feel this Quake 3 texture has from scratch. It seems the artist used some overlays but a lot of the lines seem they were either painted or maybe paths were used. Any thoughts on how to do this quickly would be great. Thanks.

Alex

Eric Chadwick

I see a lot of overlays, each embossed. One way to do this would be to start with a gray canvas, then make a circle selection and subtract and add rectangular and/or circular selections to/from it to make an interesting shape. Then fill with white (or Stroke with white) and emboss the whole canvas. Make a new layer, fill with gray, rinse and repeat. Set each layer to overlay. Add some color.