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add pickingRay method

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This commit is contained in:
Justin Sermeno
2011-10-05 00:31:52 -07:00
parent 1d1e1dfaf7
commit bc27e18424
1 changed files with 17 additions and 22 deletions
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src/core/Projector.js
+17 -22
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@@ -36,39 +36,34 @@ THREE.Projector = function() {
this.projectVector = function ( vector, camera ) {
_projScreenMatrix.multiply( camera.projectionMatrix, camera.matrixWorldInverse );
_projScreenMatrix.multiply( camera.projectionMatrix, camera.matrixWorldInverse );
_projScreenMatrix.multiplyVector3( vector );
return vector;
};
this.unprojectVector = function ( vector, camera, ray ) {
var end, dir, t;
//if ( camera instanceof THREE.OrthographicCamera ) {
vector.z = -1.0;
end = new THREE.Vector3( vector.x, vector.y, 1.0);
//}
this.unprojectVector = function ( vector, camera ) {
_projScreenMatrix.multiply( camera.matrixWorld, THREE.Matrix4.makeInvert( camera.projectionMatrix ) );
_projScreenMatrix.multiplyVector3( vector );
// if ( camera instanceof THREE.OrthographicCamera ) {
_projScreenMatrix.multiplyVector3( end );
dir = new THREE.Vector3();
dir.sub( end, vector );
dir.normalize();
ray.origin = vector;
ray.direction = dir;
// }
return vector;
};
this.pickingRay = function ( vector, camera ) {
var end, dir, ray, t;
vector.z = -1.0;
end = new THREE.Vector3( vector.x, vector.y, 1.0 );
this.unprojectVector( vector, camera );
this.unprojectVector( end, camera );
dir = new THREE.Vector3();
dir.sub( end, vector );
dir.normalize();
return new THREE.Ray( vector, dir );
};
this.projectObjects = function ( scene, camera, sort ) {