# An example input file to two spheres blended together region: " -[x^2 + y^2 + z^2 - 1.0] | -[(x - 2.5)^2 + y^2 + z^2 - 1.0] " bounds: min: [-5, -5, -5] max: [5, 5, 5] resolution: [100, 100, 100] algebra: alpha: "0.0" blend: "-1 / (1 + f1^2 + f2^2)"