https://3d-druck-jo.de/wp-content/plugins/3dprint-lite/includes/ex…/threex.atmospherematerial.js?ver=2.1.3.8

1var THREEx = THREEx || {}
2
3/**
4 * from http://stemkoski.blogspot.fr/2013/07/shaders-in-threejs-glow-and-halo.html
5 * @return {[type]} [description]
6 */
7THREEx.createAtmosphereMaterial	= function(){
8	var vertexShader	= [
9		'varying vec3	vVertexWorldPosition;',
10		'varying vec3	vVertexNormal;',
11
12		'varying vec4	vFragColor;',
13
14		'void main(){',
15		'	vVertexNormal	= normalize(normalMatrix * normal);',
16
17		'	vVertexWorldPosition	= (modelMatrix * vec4(position, 1.0)).xyz;',
18
19		'	// set gl_Position',
20		'	gl_Position	= projectionMatrix * modelViewMatrix * vec4(position, 1.0);',
21		'}',
22
23		].join('\n')
24	var fragmentShader	= [
25		'uniform vec3	glowColor;',
26		'uniform float	coeficient;',
27		'uniform float	power;',
28
29		'varying vec3	vVertexNormal;',
30		'varying vec3	vVertexWorldPosition;',
31
32		'varying vec4	vFragColor;',
33
34		'void main(){',
35		'	vec3 worldCameraToVertex= vVertexWorldPosition - cameraPosition;',
36		'	vec3 viewCameraToVertex	= (viewMatrix * vec4(worldCameraToVertex, 0.0)).xyz;',
37		'	viewCameraToVertex	= normalize(viewCameraToVertex);',
38		'	float intensity		= pow(coeficient + dot(vVertexNormal, viewCameraToVertex), power);',
39		'	gl_FragColor		= vec4(glowColor, intensity);',
40		'}',
41	].join('\n')
42
43	// create custom material from the shader code above
44	//   that is within specially labeled script tags
45	var material	= new THREEP3DL.ShaderMaterial({
46		uniforms: { 
47			coeficient	: {
48				type	: "f", 
49				value	: 1.0
50			},
51			power		: {
52				type	: "f",
53				value	: 2
54			},
55			glowColor	: {
56				type	: "c",
57				value	: new THREEP3DL.Color('pink')
58			},
59		},
60		vertexShader	: vertexShader,
61		fragmentShader	: fragmentShader,
62		//blending	: THREEP3DL.AdditiveBlending,
63		transparent	: true,
64		depthWrite	: false,
65	});
66	return material
67}