Spawns the prefab at the positions.

• Prefab: The actual prefab to spawn.
• Align with Terrain: If true, prefabs will automatically be set at ground. If spawning data at the ground, it is recommended to set it to true to avoid unnecessary data requests. If false, a new input field can be provided to define a height map where prefabs should fall.
• Affected by Scale: Whether each point’s scale is applied to its prefab.
• Affected by Rotation: Whether each point’s rotation is applied to its prefab.