/
3dgopherfinal.go
137 lines (109 loc) · 4.5 KB
/
3dgopherfinal.go
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
package main
import (
"math"
"github.com/gopherjs/gopherjs/js"
"github.com/gopherjs/jsbuiltin"
"honnef.co/go/js/dom"
)
var JS = js.Global
var D = dom.GetWindow().Document()
var container *dom.HTMLDivElement
var camera *js.Object
var cameraTarget *js.Object
var scene *js.Object
var renderer *js.Object
var gopher *js.Object
type MeshPhongMaterialData struct {
*js.Object
Color int `js:"color"`
Specular int `js:"specular"`
Shininess int `js:"shininess"`
}
func main() {
println("Hello 3D Gopher!")
dom.GetWindow().AddEventListener("resize", false, func(event dom.Event) {
handleWindowResize()
})
initialize()
animate()
}
func initialize() {
container = D.CreateElement("div").(*dom.HTMLDivElement)
D.QuerySelector("body").AppendChild(container)
camera = JS.Get("THREE").Get("PerspectiveCamera").New(39, JS.Get("window").Get("innerWidth").Int()/JS.Get("window").Get("innerHeight").Int(), 1, 15)
camera.Get("position").Call("set", 6, 0.54, 6)
cameraTarget = JS.Get("THREE").Get("Vector3").New(0, 0, 0)
scene = JS.Get("THREE").Get("Scene").New()
fog := JS.Get("THREE").Get("Fog").New(0x708090, 2, 15)
scene.Set("fog", fog)
planeMeshData := &MeshPhongMaterialData{Object: js.Global.Get("Object").New()}
planeMeshData.Color = 0xA9A9A9
planeMeshData.Specular = 0x000000
planeMeshPhongMaterial := JS.Get("THREE").Get("MeshPhongMaterial").New(planeMeshData)
planeBufferGeometry := JS.Get("THREE").Get("PlaneBufferGeometry").New(40, 40)
plane := JS.Get("THREE").Get("Mesh").New(planeBufferGeometry, planeMeshPhongMaterial)
plane.Get("rotation").Set("x", -1*(math.Pi/2))
plane.Get("position").Set("y", -0.5)
scene.Call("add", plane)
loader := JS.Get("THREE").Get("OBJLoader").New()
loader.Call("load", "/obj/gogopher.obj", func(mesh *js.Object) {
gopherMeshPhongMaterial := &MeshPhongMaterialData{Object: js.Global.Get("Object").New()}
gopherMeshPhongMaterial.Color = 0x007794
gopherMeshPhongMaterial.Specular = 0x111111
gopherMeshPhongMaterial.Shininess = 200
material := JS.Get("THREE").Get("MeshPhongMaterial").New(gopherMeshPhongMaterial)
mesh.Call("traverse", func(child *js.Object) {
if jsbuiltin.InstanceOf(child, JS.Get("THREE").Get("Mesh")) {
child.Set("material", material)
println(material)
}
})
mesh.Get("position").Call("set", 0.06, -0.45, 0.7)
mesh.Get("scale").Call("set", 0.004, 0.0054, 0.004)
mesh.Set("castsShadow", true)
mesh.Set("receiveShadow", true)
scene.Call("add", mesh)
})
hemisphereLight := JS.Get("THREE").Get("HemisphereLight").New(0xf0f0f0, 0x000000)
scene.Call("add", hemisphereLight)
addDirectionalLight(-0.5, 3, -1.0, 0xf0f0f0, 1)
renderer = JS.Get("THREE").Get("WebGLRenderer").New()
renderer.Call("setClearColor", scene.Get("fog").Get("color"))
renderer.Call("setPixelRatio", JS.Get("window").Get("devicePixelRatio"))
renderer.Call("setSize", JS.Get("window").Get("innerWidth").Int(), JS.Get("window").Get("innerHeight").Int())
renderer.Set("gammaInput", true)
renderer.Set("gammaOutput", true)
renderer.Get("shadowMap").Set("enabled", true)
renderer.Get("shadowMap").Set("renderReverseSided", false)
container.Underlying().Call("appendChild", renderer.Get("domElement"))
}
func animate() {
JS.Get("window").Call("requestAnimationFrame", animate)
render()
}
func render() {
JS.Get("window").Call("panCamera", camera, cameraTarget)
camera.Call("lookAt", cameraTarget)
renderer.Call("render", scene, camera)
}
func addDirectionalLight(x float64, y float64, z float64, color int, intensity int) {
directionalLight := JS.Get("THREE").Get("DirectionalLight").New(color, intensity)
directionalLight.Get("position").Call("set", x, y, z)
scene.Call("add", directionalLight)
directionalLight.Set("castShadow", true)
d := 1
directionalLight.Get("shadow").Get("camera").Set("left", -d)
directionalLight.Get("shadow").Get("camera").Set("right", d)
directionalLight.Get("shadow").Get("camera").Set("top", d)
directionalLight.Get("shadow").Get("camera").Set("bottom", -d)
directionalLight.Get("shadow").Get("camera").Set("near", 1)
directionalLight.Get("shadow").Get("camera").Set("far", 4)
directionalLight.Get("shadow").Get("mapSize").Set("width", 1024)
directionalLight.Get("shadow").Get("mapSize").Set("height", 1024)
directionalLight.Get("shadow").Set("bias", -0.005)
}
func handleWindowResize() {
camera.Set("aspect", JS.Get("window").Get("innerWidth").Int()/JS.Get("window").Get("innerHeight").Int())
camera.Call("updateProjectionMatrix")
renderer.Call("setSize", JS.Get("window").Get("innerWidth").Int(), JS.Get("window").Get("innerHeight").Int())
}