material {
    name : heightfield,
    parameters : [
        {
            type : sampler2d,
            name : height
        }
    ],
    requires : [
        uv0
    ],
    variables : [
        color
    ],
    shadingModel : unlit,
    doubleSided : true,
}

vertex {
    void materialVertex(inout MaterialVertexInputs material) {
        float height = texture(materialParams_height, material.uv0).r;
        material.worldPosition.y = height - getWorldOffset().y;
        material.color.r = height;
    }
}

fragment {
    void material(inout MaterialInputs material) {
        prepareMaterial(material);
        material.baseColor.rgb = vec3(variable_color.r);
    }
}