Use blendingtexture to implement simple terrain

【Use blendingtexture to implement simple terrain]

Blendingtexture is a texture. The data stored in the texture is used for alpha channel values in other places. For example, the following four images need to be mixed on the terrain surface:

We can organize four alpha grayscale images into an rgba image:

To complete the mixed texture function, define four images and colors in properties:

Of course, we also need to define in subshader:

Define UV reference data:

The first step of the hybrid algorithm is to extract the Texel from each texture:

First mixed color:

After the finalcolor is mixed with the surface color, output:

The mixed result is as follows:

【How it works]

A graph can explain everything:

Use blendingtexture to implement simple terrain