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three.js

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提交 e8b0de4c 编写于 作者: B Ben Houston
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expand tests of Matrix3 and Matrix4 inverse functions.

上级 0263059a
隐藏空白更改
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Showing with 105 addition and 30 deletion
test/unit/math/Matrix3.js
浏览文件 @ e8b0de4c
......@@ -4,8 +4,8 @@
module( "Matrix3" );
var matrixEquals = function( a, b, tolerance ) {
tolerance = tolerance || 0;
var matrixEquals3 = function( a, b, tolerance ) {
tolerance = tolerance || 0.0001;
if( a.elements.length != b.elements.length ) {
return false;
}
......@@ -18,6 +18,24 @@ var matrixEquals = function( a, b, tolerance ) {
return true;
};
var toMatrix4 = function( m3 ) {
var result = new THREE.Matrix4();
var re = result.elements;
var me = m3.elements;
re[0] = me[0];
re[1] = me[1];
re[2] = me[2];
re[4] = me[3];
re[5] = me[4];
re[6] = me[5];
re[8] = me[6];
re[9] = me[7];
re[10] = me[8];
return result;
};
test( "constructor", function() {
var a = new THREE.Matrix3();
ok( a.determinant() == 1, "Passed!" );
......@@ -33,18 +51,18 @@ test( "constructor", function() {
ok( b.elements[7] == 5 );
ok( b.elements[8] == 8 );
ok( ! matrixEquals( a, b ), "Passed!" );
ok( ! matrixEquals3( a, b ), "Passed!" );
});
test( "copy", function() {
var a = new THREE.Matrix3( 0, 1, 2, 3, 4, 5, 6, 7, 8 );
var b = new THREE.Matrix3().copy( a );
ok( matrixEquals( a, b ), "Passed!" );
ok( matrixEquals3( a, b ), "Passed!" );
// ensure that it is a true copy
a.elements[0] = 2;
ok( ! matrixEquals( a, b ), "Passed!" );
ok( ! matrixEquals3( a, b ), "Passed!" );
});
test( "set", function() {
......@@ -76,10 +94,10 @@ test( "identity", function() {
ok( b.elements[8] == 8 );
var a = new THREE.Matrix3();
ok( ! matrixEquals( a, b ), "Passed!" );
ok( ! matrixEquals3( a, b ), "Passed!" );
b.identity();
ok( matrixEquals( a, b ), "Passed!" );
ok( matrixEquals3( a, b ), "Passed!" );
});
test( "multiplyScalar", function() {
......@@ -117,16 +135,16 @@ test( "determinant", function() {
ok( a.determinant() == 0, "Passed!" );
});
test( "getInverse", function() {
var identity = new THREE.Matrix4();
var a = new THREE.Matrix4();
var b = new THREE.Matrix3( 0, 0, 0, 0, 0, 0, 0, 0, 0 );
var c = new THREE.Matrix4( 0, 0, 0, 0, 0, 0, 0, 0, 0 );
ok( ! matrixEquals( a, b ), "Passed!" );
ok( ! matrixEquals3( a, b ), "Passed!" );
b.getInverse( a, false );
console.log( a );
console.log( b );
ok( matrixEquals( b, new THREE.Matrix3() ), "Passed!" );
ok( matrixEquals3( b, new THREE.Matrix3() ), "Passed!" );
try {
b.getInverse( c, true );
......@@ -135,27 +153,53 @@ test( "getInverse", function() {
catch( err ) {
ok( true, "Passed!" );
}
var testMatrices = [
new THREE.Matrix4().makeRotationX( 0.3 ),
new THREE.Matrix4().makeRotationX( -0.3 ),
new THREE.Matrix4().makeRotationY( 0.3 ),
new THREE.Matrix4().makeRotationY( -0.3 ),
new THREE.Matrix4().makeRotationZ( 0.3 ),
new THREE.Matrix4().makeRotationZ( -0.3 ),
new THREE.Matrix4().makeScale( new THREE.Vector3( 1, 2, 3 ) ),
new THREE.Matrix4().makeScale( new THREE.Vector3( 1/8, 1/2, 1/3 ) )
];
for( var i = 0, il = testMatrices.length; i < il; i ++ ) {
var m = testMatrices[i];
var mInverse3 = new THREE.Matrix3().getInverse( m );
var mInverse = toMatrix4( mInverse3 );
// the determinant of the inverse should be the reciprocal
ok( Math.abs( m.determinant() * mInverse3.determinant() - 1 ) < 0.0001, "Passed!" );
ok( Math.abs( m.determinant() * mInverse.determinant() - 1 ) < 0.0001, "Passed!" );
var mProduct = new THREE.Matrix4().multiply( m, mInverse );
ok( Math.abs( mProduct.determinant() - 1 ) < 0.0001, "Passed!" );
ok( matrixEquals3( mProduct, identity ), "Passed!" );
}
});
test( "transpose", function() {
var a = new THREE.Matrix3();
var b = a.clone().transpose();
ok( matrixEquals( a, b ), "Passed!" );
ok( matrixEquals3( a, b ), "Passed!" );
b = new THREE.Matrix3( 0, 1, 2, 3, 4, 5, 6, 7, 8 );
c = b.clone().transpose();
ok( ! matrixEquals( b, c ), "Passed!" );
ok( ! matrixEquals3( b, c ), "Passed!" );
c.transpose();
ok( matrixEquals( b, c ), "Passed!" );
ok( matrixEquals3( b, c ), "Passed!" );
});
test( "clone", function() {
var a = new THREE.Matrix3( 0, 1, 2, 3, 4, 5, 6, 7, 8 );
var b = a.clone();
ok( matrixEquals( a, b ), "Passed!" );
ok( matrixEquals3( a, b ), "Passed!" );
// ensure that it is a true copy
a.elements[0] = 2;
ok( ! matrixEquals( a, b ), "Passed!" );
ok( ! matrixEquals3( a, b ), "Passed!" );
});
\ No newline at end of file
test/unit/math/Matrix4.js
浏览文件 @ e8b0de4c
......@@ -4,8 +4,8 @@
module( "Matrix4" );
var matrixEquals = function( a, b, tolerance ) {
tolerance = tolerance || 0;
var matrixEquals4 = function( a, b, tolerance ) {
tolerance = tolerance || 0.0001;
if( a.elements.length != b.elements.length ) {
return false;
}
......@@ -40,18 +40,18 @@ test( "constructor", function() {
ok( b.elements[14] == 11 );
ok( b.elements[15] == 15 );
ok( ! matrixEquals( a, b ), "Passed!" );
ok( ! matrixEquals4( a, b ), "Passed!" );
});
test( "copy", function() {
var a = new THREE.Matrix4( 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15 );
var b = new THREE.Matrix4().copy( a );
ok( matrixEquals( a, b ), "Passed!" );
ok( matrixEquals4( a, b ), "Passed!" );
// ensure that it is a true copy
a.elements[0] = 2;
ok( ! matrixEquals( a, b ), "Passed!" );
ok( ! matrixEquals4( a, b ), "Passed!" );
});
test( "set", function() {
......@@ -97,10 +97,10 @@ test( "identity", function() {
ok( b.elements[15] == 15 );
var a = new THREE.Matrix4();
ok( ! matrixEquals( a, b ), "Passed!" );
ok( ! matrixEquals4( a, b ), "Passed!" );
b.identity();
ok( matrixEquals( a, b ), "Passed!" );
ok( matrixEquals4( a, b ), "Passed!" );
});
test( "multiplyScalar", function() {
......@@ -153,13 +153,15 @@ test( "determinant", function() {
});
test( "getInverse", function() {
var identity = new THREE.Matrix4();
var a = new THREE.Matrix4();
var b = new THREE.Matrix4( 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 );
var c = new THREE.Matrix4( 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 );
ok( ! matrixEquals( a, b ), "Passed!" );
ok( ! matrixEquals4( a, b ), "Passed!" );
b.getInverse( a, false );
ok( matrixEquals( b, new THREE.Matrix4() ), "Passed!" );
ok( matrixEquals4( b, new THREE.Matrix4() ), "Passed!" );
try {
b.getInverse( c, true );
......@@ -168,27 +170,56 @@ test( "getInverse", function() {
catch( err ) {
ok( true, "Passed!" );
}
var testMatrices = [
new THREE.Matrix4().makeRotationX( 0.3 ),
new THREE.Matrix4().makeRotationX( -0.3 ),
new THREE.Matrix4().makeRotationY( 0.3 ),
new THREE.Matrix4().makeRotationY( -0.3 ),
new THREE.Matrix4().makeRotationZ( 0.3 ),
new THREE.Matrix4().makeRotationZ( -0.3 ),
new THREE.Matrix4().makeScale( new THREE.Vector3( 1, 2, 3 ) ),
new THREE.Matrix4().makeScale( new THREE.Vector3( 1/8, 1/2, 1/3 ) ),
new THREE.Matrix4().makeFrustum( -1, 1, -1, 1, 1, 1000 ),
new THREE.Matrix4().makeFrustum( -16, 16, -9, 9, 0.1, 10000 ),
new THREE.Matrix4().makeTranslation( new THREE.Vector3( 1, 2, 3 ) )
];
for( var i = 0, il = testMatrices.length; i < il; i ++ ) {
var m = testMatrices[i];
var mInverse = new THREE.Matrix4().getInverse( m );
// the determinant of the inverse should be the reciprocal
ok( Math.abs( m.determinant() * mInverse.determinant() - 1 ) < 0.0001, "Passed!" );
var mProduct = new THREE.Matrix4().multiply( m, mInverse );
// the determinant of the identity matrix is 1
ok( Math.abs( mProduct.determinant() - 1 ) < 0.0001, "Passed!" );
ok( matrixEquals4( mProduct, identity ), "Passed!" );
}
});
test( "transpose", function() {
var a = new THREE.Matrix4();
var b = a.clone().transpose();
ok( matrixEquals( a, b ), "Passed!" );
ok( matrixEquals4( a, b ), "Passed!" );
b = new THREE.Matrix4( 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15 );
c = b.clone().transpose();
ok( ! matrixEquals( b, c ), "Passed!" );
ok( ! matrixEquals4( b, c ), "Passed!" );
c.transpose();
ok( matrixEquals( b, c ), "Passed!" );
ok( matrixEquals4( b, c ), "Passed!" );
});
test( "clone", function() {
var a = new THREE.Matrix4( 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15 );
var b = a.clone();
ok( matrixEquals( a, b ), "Passed!" );
ok( matrixEquals4( a, b ), "Passed!" );
// ensure that it is a true copy
a.elements[0] = 2;
ok( ! matrixEquals( a, b ), "Passed!" );
ok( ! matrixEquals4( a, b ), "Passed!" );
});
\ No newline at end of file
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