Multilayer Terrain Shader

[RobertBeckebans]

• it should be controlled through vertex colors

• uses triplanar blending as base

• maybe diffuse only

• should have terrain variation in the distance based on Practical Real-Time Hex-Tiling: https://www.jcgt.org/published/0011/03/05/ or a similar technique

[Calinou]

• uses triplanar blending as base

Biplanar mapping could also be looked into, as it significantly reduces texture reads (at the cost of more time spent computing in the shader). If you're doing hex tiling or parallax mapping, it will likely be worth it as both of these techniques require a lot of texture reads.

[RobertBeckebans]

Interesting, Biplanar mapping is new to me.