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Justin Lin 2022-01-02 17:49:03 +08:00
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use <polyhedra/polar_zonohedra.scad>;
use <polyhedra/octahedron.scad>;
use <polyhedra/icosahedron.scad>;
use <shear.scad>;
use <polyline_join.scad>;
use <bezier_curve.scad>;
use <rails2sections.scad>;
use <sweep.scad>;
use <experimental/worley_sphere.scad>;
use <curve.scad>;
use <ptf/ptf_rotate.scad>;
use <util/dedup.scad>;
detail = 1;
head_angles = [5, 0, 20];
owl(detail, head_angles);
rock();
module owl(detail, head_angles) {
n = (detail + 1) * 5;
$fn = n;
module head() {
module eye_plane_mask() {
translate([10, -66, 82.5])
rotate([90, 0, 30])
linear_extrude(10)
circle(12);
}
module eye_ring() {
translate([10, -65, 82.5])
rotate([270, 0, 30])
scale([1, 1, 2])
rotate(180 / $fn)
rotate_extrude()
translate([12, 0, 0])
circle(1.75);
}
module eye_hole_mask() {
translate([10, -66, 82.5])
rotate([270, 0, 30])
rotate(180 / $fn)
translate([0, 0, -1])
linear_extrude(3, scale = .5)
circle(10);
}
module eye_ball() {
translate([8, -62, 82.5])
icosahedron(4, n / 5 - 1);
}
difference() {
union() {
difference() {
translate([0, -49, 82.5])
rotate([15, 0, 0])
shear(sy = [0, -.05])
scale([25, 25, 25])
octahedron(1, n / 5);
eye_plane_mask();
mirror([1, 0, 0])
eye_plane_mask();
}
eye_ring();
mirror([1, 0, 0])
eye_ring();
}
eye_hole_mask();
mirror([1, 0, 0])
eye_hole_mask();
}
eye_ball();
mirror([1, 0, 0])
eye_ball();
eyebrow();
mirror([1, 0, 0])
eyebrow();
// beak
translate([0, -72.25, 80])
scale([.85, 1, 3.5])
rotate([25, 0, 0])
octahedron(2.5, detail);
}
module body() {
// back
translate([0, 8, 22])
rotate([68, 0, 0])
shear(sy = [0, .3])
scale([11, 10, 15])
scale(10 / n)
polar_zonohedra(n);
// belly
translate([0, -35, 22])
rotate([5, 0, 0])
scale([10, 9, 12])
scale(10 / n)
polar_zonohedra(n);
translate([0, 7.5, 15])
rotate([12, 0, 0])
shear(sy = [0, -1])
scale([9, 9, 10])
scale(10 / n)
polar_zonohedra(n);
// tail
translate([0, 20, 9])
rotate([12, 0, 0])
shear(sz = [0, .1])
shear(sy = [0, -1.1])
scale([8, 8, 11])
scale(10 / n)
polar_zonohedra(n);
translate([4, 20, 11])
rotate([12, 0, 2])
shear(sz = [0, .1])
shear(sy = [0, -1.1])
scale([6, 6, 10])
scale(10 / n)
polar_zonohedra(n);
}
module wing() {
translate([2, 12, 25])
rotate([68, 5, 0])
shear(sz = [0, .3])
shear(sy = [0, .2])
scale([12, 10, 14])
scale(10 / n)
polar_zonohedra(n);
}
module eyebrow() {
t_step = 0.2 / detail;
points = bezier_curve(t_step, [
[0, -74, 83],
[5, -75, 97],
[15, -70, 90],
[25, -55, 105]
]);
points2 = bezier_curve(t_step, [
[0, -74, 83],
[5, -75, 95],
[20, -65, 82],
[25, -55, 105]
]);
points3 = bezier_curve(t_step, [
[0, -74, 83],
[5, -60, 95],
[15, -65, 92],
[25, -55, 105]
]);
points4 = bezier_curve(t_step, [
[0, -74, 83],
[-5, -72, 100],
[15, -70, 97],
[25, -55, 105]
]);
rails = [
points4, points3, points2, points
];
sections = rails2sections(rails);
sweep(sections);
}
module claw() {
pts = [
[0, 0.55], [1, 0.45], [2.5, 0.375], [6, 0.825], [8, -0.375],
[8, -0.375], [6, 1.875], [4, 1.6], [1.8, 2.5], [1.5, 2.8], [1.2, 3.3], [1.05, 3.8], [1, 4], [0, 8]
];
$fn = 16;
a = 360 / $fn;
x = 6.2 * cos(a);
y = 6.2 * sin(a);
path = [
[0, 0], [2.5, 0], [x, y], [x + 1, y + 1]
];
path2 = [
for(i = len(path) - 1; i > -1; i = i - 1)
ptf_rotate([path[i][0], -path[i][1]], a * 2)
];
t_step = 0.25;
claw_path_basic = concat(curve(t_step, path), curve(t_step, path2));
claw_path1 = [for(p = claw_path_basic) ptf_rotate(p * 1.2, a * 2)];
claw_path2 = [for(p = claw_path_basic) ptf_rotate(p * 1.15, a * 4)];
claw_path3 = [for(p = claw_path_basic) ptf_rotate(p * 1.1, a * 6)];
claw_path4 = [for(p = claw_path_basic) ptf_rotate(p, a * 12)];
rotate(-15)
scale([1.15, 1.3, 1])
rotate(15)
intersection() {
rotate_extrude($fn = 7)
polygon(pts);
linear_extrude(5)
polygon(dedup(concat(claw_path1, claw_path2, claw_path3, [[-2, -.75], [-1.45, -1.45]], claw_path4, [[1.45, -1.45], [2, -.75]])));
}
}
translate([0, -45, 0])
translate([0, 0, 80])
rotate(head_angles)
translate([0, 45, -80])
head();
body();
wing();
mirror([1, 0, 0])
wing();
translate([10, -30, 18])
scale([1.2, 1.2, 1.5])
rotate([10, 0, 180])
claw();
translate([-10, -30, 18])
scale([1.2, 1.2, 1.5])
rotate([10, 0, 150])
claw();
}
module rock() {
radius = 16.5;
detail = detail;
amplitude = .25;
dist = "border";
translate([1, -29, -6.9])
scale([1, 1.2, 1])
rotate([35, 3, 0])
translate([0, 0, 12])
scale([3, 1, 1])
worley_sphere(radius, detail, amplitude, dist, seed = 4);
}