i think you can using the texture elevation settings in the region menu? i don't wanna test cause i don't wanna mess up my partner's sim textures lol but i swear i have seen sims for sale that were half sand half grass

see the part with the numbers? i think you can do it with that

Creating Terrain Textures

thank you both! xo

adjust your height and also change your textures

YEAH ... so fail... i wanted one part of the sim one texture on part another, both same height oh well...

maybe someday LL will get around to making terrain texture paint a thing... i want to do it like you can do in the sims