source: other-projects/playing-in-the-street/summer-2013/trunk/Playing-in-the-Street-WPF/Content/Web/mrdoob-three.js-4862f5f/test/unit/math/Frustum.js@ 28897

Last change on this file since 28897 was 28897, checked in by davidb, 10 years ago

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Line 
1/**
2 * @author bhouston / http://exocortex.com
3 */
4
5module( "Frustum" );
6
7var unit3 = new THREE.Vector3( 1, 0, 0 );
8
9var planeEquals = function ( a, b, tolerance ) {
10 tolerance = tolerance || 0.0001;
11 if( a.normal.distanceTo( b.normal ) > tolerance ) {
12 return false;
13 }
14 if( Math.abs( a.constant - b.constant ) > tolerance ) {
15 return false;
16 }
17 return true;
18};
19
20test( "constructor", function() {
21 var a = new THREE.Frustum();
22
23 ok( a.planes !== undefined, "Passed!" );
24 ok( a.planes.length === 6, "Passed!" );
25
26 var pDefault = new THREE.Plane();
27 for( var i = 0; i < 6; i ++ ) {
28 ok( a.planes[i].equals( pDefault ), "Passed!" );
29 }
30
31 var p0 = new THREE.Plane( unit3, -1 );
32 var p1 = new THREE.Plane( unit3, 1 );
33 var p2 = new THREE.Plane( unit3, 2 );
34 var p3 = new THREE.Plane( unit3, 3 );
35 var p4 = new THREE.Plane( unit3, 4 );
36 var p5 = new THREE.Plane( unit3, 5 );
37
38 a = new THREE.Frustum( p0, p1, p2, p3, p4, p5 );
39 ok( a.planes[0].equals( p0 ), "Passed!" );
40 ok( a.planes[1].equals( p1 ), "Passed!" );
41 ok( a.planes[2].equals( p2 ), "Passed!" );
42 ok( a.planes[3].equals( p3 ), "Passed!" );
43 ok( a.planes[4].equals( p4 ), "Passed!" );
44 ok( a.planes[5].equals( p5 ), "Passed!" );
45});
46
47test( "copy", function() {
48
49 var p0 = new THREE.Plane( unit3, -1 );
50 var p1 = new THREE.Plane( unit3, 1 );
51 var p2 = new THREE.Plane( unit3, 2 );
52 var p3 = new THREE.Plane( unit3, 3 );
53 var p4 = new THREE.Plane( unit3, 4 );
54 var p5 = new THREE.Plane( unit3, 5 );
55
56 var b = new THREE.Frustum( p0, p1, p2, p3, p4, p5 );
57 var a = new THREE.Frustum().copy( b );
58 ok( a.planes[0].equals( p0 ), "Passed!" );
59 ok( a.planes[1].equals( p1 ), "Passed!" );
60 ok( a.planes[2].equals( p2 ), "Passed!" );
61 ok( a.planes[3].equals( p3 ), "Passed!" );
62 ok( a.planes[4].equals( p4 ), "Passed!" );
63 ok( a.planes[5].equals( p5 ), "Passed!" );
64
65 // ensure it is a true copy by modifying source
66 b.planes[0] = p1;
67 ok( a.planes[0].equals( p0 ), "Passed!" );
68});
69
70test( "setFromMatrix/makeOrthographic/containsPoint", function() {
71 var m = new THREE.Matrix4().makeOrthographic( -1, 1, -1, 1, 1, 100 )
72 var a = new THREE.Frustum().setFromMatrix( m );
73
74 ok( ! a.containsPoint( new THREE.Vector3( 0, 0, 0 ) ), "Passed!" );
75 ok( a.containsPoint( new THREE.Vector3( 0, 0, -50 ) ), "Passed!" );
76 ok( a.containsPoint( new THREE.Vector3( 0, 0, -1.001 ) ), "Passed!" );
77 ok( a.containsPoint( new THREE.Vector3( -1, -1, -1.001 ) ), "Passed!" );
78 ok( ! a.containsPoint( new THREE.Vector3( -1.1, -1.1, -1.001 ) ), "Passed!" );
79 ok( a.containsPoint( new THREE.Vector3( 1, 1, -1.001 ) ), "Passed!" );
80 ok( ! a.containsPoint( new THREE.Vector3( 1.1, 1.1, -1.001 ) ), "Passed!" );
81 ok( a.containsPoint( new THREE.Vector3( 0, 0, -100 ) ), "Passed!" );
82 ok( a.containsPoint( new THREE.Vector3( -1, -1, -100 ) ), "Passed!" );
83 ok( ! a.containsPoint( new THREE.Vector3( -1.1, -1.1, -100.1 ) ), "Passed!" );
84 ok( a.containsPoint( new THREE.Vector3( 1, 1, -100 ) ), "Passed!" );
85 ok( ! a.containsPoint( new THREE.Vector3( 1.1, 1.1, -100.1 ) ), "Passed!" );
86 ok( ! a.containsPoint( new THREE.Vector3( 0, 0, -101 ) ), "Passed!" );
87
88});
89
90test( "setFromMatrix/makeFrustum/containsPoint", function() {
91 var m = new THREE.Matrix4().makeFrustum( -1, 1, -1, 1, 1, 100 )
92 var a = new THREE.Frustum().setFromMatrix( m );
93
94 ok( ! a.containsPoint( new THREE.Vector3( 0, 0, 0 ) ), "Passed!" );
95 ok( a.containsPoint( new THREE.Vector3( 0, 0, -50 ) ), "Passed!" );
96 ok( a.containsPoint( new THREE.Vector3( 0, 0, -1.001 ) ), "Passed!" );
97 ok( a.containsPoint( new THREE.Vector3( -1, -1, -1.001 ) ), "Passed!" );
98 ok( ! a.containsPoint( new THREE.Vector3( -1.1, -1.1, -1.001 ) ), "Passed!" );
99 ok( a.containsPoint( new THREE.Vector3( 1, 1, -1.001 ) ), "Passed!" );
100 ok( ! a.containsPoint( new THREE.Vector3( 1.1, 1.1, -1.001 ) ), "Passed!" );
101 ok( a.containsPoint( new THREE.Vector3( 0, 0, -99.999 ) ), "Passed!" );
102 ok( a.containsPoint( new THREE.Vector3( -99.999, -99.999, -99.999 ) ), "Passed!" );
103 ok( ! a.containsPoint( new THREE.Vector3( -100.1, -100.1, -100.1 ) ), "Passed!" );
104 ok( a.containsPoint( new THREE.Vector3( 99.999, 99.999, -99.999 ) ), "Passed!" );
105 ok( ! a.containsPoint( new THREE.Vector3( 100.1, 100.1, -100.1 ) ), "Passed!" );
106 ok( ! a.containsPoint( new THREE.Vector3( 0, 0, -101 ) ), "Passed!" );
107});
108
109test( "setFromMatrix/makeFrustum/intersectsSphere", function() {
110 var m = new THREE.Matrix4().makeFrustum( -1, 1, -1, 1, 1, 100 )
111 var a = new THREE.Frustum().setFromMatrix( m );
112
113 ok( ! a.intersectsSphere( new THREE.Sphere( new THREE.Vector3( 0, 0, 0 ), 0 ) ), "Passed!" );
114 ok( ! a.intersectsSphere( new THREE.Sphere( new THREE.Vector3( 0, 0, 0 ), 0.9 ) ), "Passed!" );
115 ok( a.intersectsSphere( new THREE.Sphere( new THREE.Vector3( 0, 0, 0 ), 1.1 ) ), "Passed!" );
116 ok( a.intersectsSphere( new THREE.Sphere( new THREE.Vector3( 0, 0, -50 ), 0 ) ), "Passed!" );
117 ok( a.intersectsSphere( new THREE.Sphere( new THREE.Vector3( 0, 0, -1.001 ), 0 ) ), "Passed!" );
118 ok( a.intersectsSphere( new THREE.Sphere( new THREE.Vector3( -1, -1, -1.001 ), 0 ) ), "Passed!" );
119 ok( ! a.intersectsSphere( new THREE.Sphere( new THREE.Vector3( -1.1, -1.1, -1.001 ), 0 ) ), "Passed!" );
120 ok( a.intersectsSphere( new THREE.Sphere( new THREE.Vector3( -1.1, -1.1, -1.001 ), 0.5 ) ), "Passed!" );
121 ok( a.intersectsSphere( new THREE.Sphere( new THREE.Vector3( 1, 1, -1.001 ), 0 ) ), "Passed!" );
122 ok( ! a.intersectsSphere( new THREE.Sphere( new THREE.Vector3( 1.1, 1.1, -1.001 ), 0 ) ), "Passed!" );
123 ok( a.intersectsSphere( new THREE.Sphere( new THREE.Vector3( 1.1, 1.1, -1.001 ), 0.5 ) ), "Passed!" );
124 ok( a.intersectsSphere( new THREE.Sphere( new THREE.Vector3( 0, 0, -99.999 ), 0 ) ), "Passed!" );
125 ok( a.intersectsSphere( new THREE.Sphere( new THREE.Vector3( -99.999, -99.999, -99.999 ), 0 ) ), "Passed!" );
126 ok( ! a.intersectsSphere( new THREE.Sphere( new THREE.Vector3( -100.1, -100.1, -100.1 ), 0 ) ), "Passed!" );
127 ok( a.intersectsSphere( new THREE.Sphere( new THREE.Vector3( -100.1, -100.1, -100.1 ), 0.5 ) ), "Passed!" );
128 ok( a.intersectsSphere( new THREE.Sphere( new THREE.Vector3( 99.999, 99.999, -99.999 ), 0 ) ), "Passed!" );
129 ok( ! a.intersectsSphere( new THREE.Sphere( new THREE.Vector3( 100.1, 100.1, -100.1 ), 0 ) ), "Passed!" );
130 ok( a.intersectsSphere( new THREE.Sphere( new THREE.Vector3( 100.1, 100.1, -100.1 ), 0.2 ) ), "Passed!" );
131 ok( ! a.intersectsSphere( new THREE.Sphere( new THREE.Vector3( 0, 0, -101 ), 0 ) ), "Passed!" );
132 ok( a.intersectsSphere( new THREE.Sphere( new THREE.Vector3( 0, 0, -101 ), 1.1 ) ), "Passed!" );
133});
134
135test( "clone", function() {
136
137 var p0 = new THREE.Plane( unit3, -1 );
138 var p1 = new THREE.Plane( unit3, 1 );
139 var p2 = new THREE.Plane( unit3, 2 );
140 var p3 = new THREE.Plane( unit3, 3 );
141 var p4 = new THREE.Plane( unit3, 4 );
142 var p5 = new THREE.Plane( unit3, 5 );
143
144 var b = new THREE.Frustum( p0, p1, p2, p3, p4, p5 );
145 var a = b.clone();
146 ok( a.planes[0].equals( p0 ), "Passed!" );
147 ok( a.planes[1].equals( p1 ), "Passed!" );
148 ok( a.planes[2].equals( p2 ), "Passed!" );
149 ok( a.planes[3].equals( p3 ), "Passed!" );
150 ok( a.planes[4].equals( p4 ), "Passed!" );
151 ok( a.planes[5].equals( p5 ), "Passed!" );
152
153 // ensure it is a true copy by modifying source
154 a.planes[0].copy( p1 );
155 ok( b.planes[0].equals( p0 ), "Passed!" );
156});
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