How can I limit the area of ​​Biome Spawner?

[acaremre]

I actually have a few questions about it.
Can I constrain the biome generator to rectangular shape?
I created a road with Gena, can I just create a biome around only this road on the terrain?
Can I use more than one biome generator in a scene? Do they mix with each other?

[Bryan]

1. Yes you can however, you would need to make a imageMask. 
You could do this in gimp or photoshop and make heightmap of a rectangle shape. 


2. You could do this as well. You would just need to add / create your own spawners and then add them to the road spline. 
To do this click on the spline and click the (+) icon to add extensions. 



3. Yes you can use multiple biomes, just make sure for the texture spawner your within your texture limit. 
Other than that you are fine to use multiple biomes. You would also want to make a third biome and mix the two biomes together.. 

I would also recommend using the distance mask and height masks to blend.