Need help generating structures according to texture

I am trying to get certain structures to generate in certain positions according to texture on the floor, for instance i dont want a tree spawning in the water but i do on the grass. But i need help on getting the texture on the floor, so far I have: RaycastHit hit; Vector3 raycastDown = new Vector3(transform.position.x, transform.position.y, transform.position.z); if(Physics.Raycast(raycastDown, Vector3.down, out hit)){ if(hit.collider.name == "Terrain Chunk"){ hitObject = hit.collider.gameObject; Vector3 hitLocation = new Vector3(hit.point.x, hit.point.y, hit.point.z); Renderer rend = hitObject.GetComponent<Renderer>(); Material raycastHitMaterial = rend.material; GetTexture(hitLocation); } } This gets the material but not sure how to get the texture from this. I have tried looking this up but as this is not classed as terrain to unity just a gameobject (because the land is proceduraly generated without using a terrain component) I cant use certain methods which i have seen.

I should also mention that the textures are, in many places blends between one another but i would like to retrieve the most prominent one.

Thank you very much!