material {
    name : PointSprites,
    requires : [
        custom0,
        color
    ],
    shadingModel : unlit,
    blending : add,
    parameters : [
        {
            type : sampler2d,
            name : fade
        }
    ]
}

vertex {
    void materialVertex(inout MaterialVertexInputs material) {
        gl_PointSize = getCustom0().r;
    }
}

fragment {
    void material(inout MaterialInputs material) {
        prepareMaterial(material);
        float L = texture(materialParams_fade, gl_PointCoord).r;
        material.baseColor = getColor() * vec4(L, L, L, 1);
    }
}