I need some help here. I was trying to create a terrain with rivulets running down and over it, but to my own pattern rather than procedural. based on a tutorial here, I did the following 1) CREATE "RIVULETS" IN TERRAIN EDITOR ON THE TERRAIN BY DIGGING 1) EXPORT TERRAIN AS BITMAP 2) OPEN BITMAP IN PAINT PROGRAM...CREATE "RIVULETS" WHERE I WANTED THEM AS ABSSOLUTE WHITE 3) BLOCK OUT ALL OTHER AREAS IN BITMAP AS ABSOLUTE BLACK 4) SAVE BITMAP AS RIVULETS.BMP 5) RE-OPEN VUE, LOAD SCENE, AND SELECT TERRAIN (TERRAIN ORIENTED NORTH) 6) CHOOSE TWO MATERIALS (EG GRASS AND WATER, or ROCK AND LAVA) TO HAVE LAND AND RIVULETS RESPECTIVELY 7) UNDER "DISTRIBUTION OF MATERIAL 1 and 2" RIGHYT CLICK AND CHOOSE "MAPPED VALYES".....LOAD THE IMAGE "RIVULETS.BMP". 8) BUT!!!! I GET NOTHING LIKE A LANDSCAPE WITH RIVER OR LAVA FLOWS!, AND I HAVE PLAYED AROUND WITH SCALE AND RELATIVE MIXTURE OF MATERIALS. ALSO, THE MATERIAL FOR THE RIVULETS SEEMS TO APPLY ITSELF OVER THE WHOLE LANDSCAPE. Any suggestions (or outright revelations) as to where I am going wrong here will be much appreciated. PANTHER