HashNoise.osl

shader HashNoise(
    string Dimensions = "4D"
        [[ string widget = "mapper",
        string options = "1D (X):1D|2D (X, Y):2D|3D (X, Y, Z):3D|4D (X, Y, Z, W):4D" ]],
    float Minimum = 0.0,
    float Maximum = 1.0,
    point Position_XYZ = P
        [[ string label = "Position XYZ" ]],
    float Position_W = 0.0
        [[ string label = "Position W" ]],
    vector Scale_XYZ = 1.0
        [[ string label = "Scale XYZ" ]],
    float Scale_W = 1.0
        [[ string label = "Scale W" ]],
    output color Color = 0.0,
    output float Float = 0.0
) {
    point pos = Position_XYZ * Scale_XYZ;
    float w = Position_W * Scale_W;
    color result;
    if (Dimensions == "1D") {
        result = noise("hash", pos[0]);
    } else if (Dimensions == "2D") {
        result = noise("hash", pos[0], pos[1]);
    } else if (Dimensions == "3D") {
        result = noise("hash", pos);
    } else {
        result = noise("hash", pos, w);
    }
    Color = mix(vector(Minimum), vector(Maximum), result);
    Float = mix(Minimum, Maximum, result[0]);
}