func main() {
rand.Seed(1211)
eye := ln.Vector{8, 8, 8}
center := ln.Vector{0, 0, 0}
up := ln.Vector{0, 0, 1}
scene := ln.Scene{}
for a := 0; a < 50; a++ {
n := 200
xs := LowPassNoise(n, 0.3, 4)
ys := LowPassNoise(n, 0.3, 4)
zs := LowPassNoise(n, 0.3, 4)
ss := LowPassNoise(n, 0.3, 4)
position := ln.Vector{}
for i := 0; i < n; i++ {
sphere := ln.NewOutlineSphere(eye, up, position, 0.1)
scene.Add(sphere)
s := (ss[i]+1)/2*0.1 + 0.01
v := ln.Vector{xs[i], ys[i], zs[i]}.Normalize().MulScalar(s)
position = position.Add(v)
}
}
width := 380.0 * 5
height := 315.0 * 5
fovy := 50.0
paths := scene.Render(eye, center, up, width, height, fovy, 0.1, 100, 0.01)
paths.WriteToPNG("out.png", width, height)
paths.Print()
}
func (m *Molecule) Paths(width, height float64) ln.Paths {
scene := ln.Scene{}
nodes := make([]ln.Vector, len(m.Atoms))
for i, atom := range m.Atoms {
nodes[i] = ln.Vector{atom.X, atom.Y, atom.Z}
}
mid := ln.BoxForVectors(nodes).Center()
for i, node := range nodes {
nodes[i] = node.Sub(mid)
}
eye := CameraPosition(nodes)
center := ln.Vector{}
fov := CameraFOV(nodes, eye, center)
up := ln.Vector{0, 0, 1}
for i, node := range nodes {
atom := m.Atoms[i]
radius := float64(AtomicRadii[atom.Symbol]) / 100
scene.Add(ln.NewOutlineSphere(eye, up, node, radius*0.5))
}
for _, bond := range m.Bonds {
v0 := nodes[bond.I]
v1 := nodes[bond.J]
r := float64(bond.Type) / 16
scene.Add(ln.NewTransformedOutlineCylinder(eye, up, v0, v1, r))
}
return scene.Render(eye, center, up, width, height, fov, 0.1, 100, 0.01)
}
func main() {
eye := ln.Vector{8, 8, 8}
center := ln.Vector{0, 0, 0}
up := ln.Vector{0, 0, 1}
scene := ln.Scene{}
n := 10
for x := -n; x <= n; x++ {
for y := -n; y <= n; y++ {
z := rand.Float64() * 3
v := ln.Vector{float64(x), float64(y), z}
sphere := ln.NewOutlineSphere(eye, up, v, 0.45)
scene.Add(sphere)
}
}
width := 1920.0
height := 1200.0
fovy := 50.0
paths := scene.Render(eye, center, up, width, height, fovy, 0.1, 100, 0.01)
paths.WriteToPNG("out.png", width, height)
}
func (m *Molecule) Paths(width, height float64) ln.Paths {
scene := ln.Scene{}
camera := m.Camera()
eye := camera.Eye.ln()
center := camera.Center.ln()
up := camera.Up.ln()
fovy := camera.Fovy
spheres, cylinders := m.Solids()
for _, s := range spheres {
scene.Add(ln.NewOutlineSphere(eye, up, s.Center.ln(), s.Radius*0.5))
}
for _, c := range cylinders {
scene.Add(ln.NewTransformedOutlineCylinder(eye, up, c.A.ln(), c.B.ln(), c.Radius))
}
return scene.Render(eye, center, up, width, height, fovy, 0.1, 100, 0.01)
}
func render(frame int) {
cx := math.Cos(ln.Radians(float64(frame)))
cy := math.Sin(ln.Radians(float64(frame)))
scene := ln.Scene{}
eye := ln.Vector{cx, cy, 0}.MulScalar(8)
center := ln.Vector{0, 0, 0}
up := ln.Vector{0, 0, 1}
nodes := []ln.Vector{
{1.047, -0.000, -1.312},
{-0.208, -0.000, -1.790},
{2.176, 0.000, -2.246},
{1.285, -0.001, 0.016},
{-1.276, -0.000, -0.971},
{-0.384, 0.000, -2.993},
{-2.629, -0.000, -1.533},
{-1.098, -0.000, 0.402},
{0.193, 0.005, 0.911},
{-1.934, -0.000, 1.444},
{2.428, -0.000, 0.437},
{0.068, -0.000, 2.286},
{-1.251, -0.000, 2.560},
{1.161, -0.000, 3.261},
{1.800, 0.001, -3.269},
{2.783, 0.890, -2.082},
{2.783, -0.889, -2.083},
{-2.570, -0.000, -2.622},
{-3.162, -0.890, -1.198},
{-3.162, 0.889, -1.198},
{-1.679, 0.000, 3.552},
{1.432, -1.028, 3.503},
{2.024, 0.513, 2.839},
{0.839, 0.513, 4.167},
// {0.000000, 0.000000, 0.000000},
// {0.000000, 0.000000, 1.089000},
// {1.026719, 0.000000, -0.363000},
// {-0.513360, -0.889165, -0.363000},
// {-0.513360, 0.889165, -0.363000},
//
// {0, 0, 0},
// {-1, 0, 0},
// {1, 0, 0},
// {0, 1, 0},
// {0, -1, 0},
// {0, 0, 1},
// {0, 0, -1},
//
// {-1, 1, 1},
// {-1, 1, -1},
// {-1, -1, 1},
// {-1, -1, -1},
// {1, 1, 1},
// {1, 1, -1},
// {1, -1, 1},
// {1, -1, -1},
}
edges := [][2]int{
{0, 1},
{0, 2},
{0, 3},
{1, 4},
{1, 5},
{2, 14},
{2, 15},
{2, 16},
{3, 8},
{3, 10},
{4, 6},
{4, 7},
{6, 17},
{6, 18},
{6, 19},
{7, 8},
{7, 9},
{8, 11},
{9, 12},
{11, 12},
{11, 13},
{12, 20},
{13, 21},
{13, 22},
{13, 23},
}
for _, v := range nodes {
scene.Add(ln.NewOutlineSphere(eye, up, v, 0.333))
}
// for _, v0 := range nodes {
// for _, v1 := range nodes {
// if v0 == v1 {
// continue
// }
for _, edge := range edges {
v0 := nodes[edge[0]]
v1 := nodes[edge[1]]
d := v1.Sub(v0)
z := d.Length()
u := d.Cross(up).Normalize()
a := math.Acos(d.Normalize().Dot(up))
m := ln.Translate(v0)
if a != 0 {
m = ln.Rotate(u, a).Translate(v0)
}
c := ln.NewOutlineCylinder(m.Inverse().MulPosition(eye), up, 0.1, 0, z)
scene.Add(ln.NewTransformedShape(c, m))
}
// }
width := 750.0
height := 750.0
paths := scene.Render(eye, center, up, width, height, 60, 0.1, 100, 0.01)
paths.WriteToPNG(fmt.Sprintf("out%03d.png", frame), width, height)
}