How to apply biomes with Texture Splatting

Troubleshooting graphics
1

Hi, I’m working with the terrain splatting and I want to add “biomes” to the terrain.

The idea is:

  • I have a terrain, generated with a HeightMap.
  • I have a StencilMap for the terrain, for example this:

Imgur

  • I have a “BiomeMap” like this:

Imgur

  • The black biome has 3 textures asociated:
    • R: One completely yellow
    • G: One orange
    • B: One Pink
  • The white biome has other 3 textures asociated:
    • R: One Purple
    • G: One Dark blue
    • B: One Light blue

I want the StencilMap choose and paint the texture into the terrain acording to the BiomeMap, resulting something like this:

Imgur

Do I have to cut the terrain in diferents geometries, one per biome, so each one has the textures of the current biome?

The idea is to have several biomes, more than 4 (with 3 textures per biome there will be more than the 12 textures admitted by the actual Texture Splatting).

2

The terrain shader doesn’t support this.
The best option you’d have is to make your own terrain shader that uses your stencil map.