material {
    name : GroundShadow,
    blending : transparent,
    shadingModel : unlit,
    shadowMultiplier : true,
    parameters : [
        {
            type : float,
            name : strength
        }
    ],
}

fragment {
    void material(inout MaterialInputs material) {
        prepareMaterial(material);
        material.baseColor = vec4(0.0, 0.0, 0.0, materialParams.strength);
    }
}