Tutorial on how use real image for creating Grand Canyon stratifications
For textures:
1) Bring a Grand Canyon photo;
2) Cut a part with photoshop, see Grand Canyon.jpg;
3) Use photoshp or stratagen 2 to blend, desaturate or other to do more reality to strata textures. Remember to save always image as windows bitmap 24 bit. I use trick, I resave alsways textures with stratagen 2.
For terragen:
1) Open terrain;
2) Go to modify, set to terrain units (it's more easy to work with strata), look numbers on set height range, in this case, 26 for from 78.99 for to;
3) Go to surface, click on edit, give a color on primary surface, click on tex, then on +, select SO STRATA, give 26 to minimum altitude and 78.99 for maximum altitude, select texuters, select heigh map, give 1 for maximum strata deviation, set size terrain, click ok;
4) Give some children surfaces if you want give a more real look to scenery.
I attach final image and canyon photo here, next post for resources tutorial.
