nonono , your code has to be like the one of tgc inside of there help command , using there structure as it is , lemme copy paste it if i find it ...
land=1
bump$="bump.bmp"
LOAD IMAGE "couleur.bmp",1
LOAD IMAGE "detail.bmp",2
MAKE OBJECT terrain land
set terrain heightmap land,bump$
set terrain scale land, 1,2,3
value=5
set terrain split land,value
set terrain tiling land,value*6
set terrain light land, 1,0.5,0.75, 1, 1, 1, 1
set terrain texture land, 1, 2
build terrain land
this should do , if this don't work , rerewrite here that it doesn't , i'm kind of tired and tried to help
btw , don't update anything at all regarding terrain , just update 5.8 , terrain is included with it , you don't need to reupdate it , if you have updated , just erase reinstall dbpro , now , about commands , we are working on a update for the manual , check the sticky in dbpro forum
A pixel is nothing , lots of can be all