three
Version:
JavaScript 3D library
137 lines (79 loc) • 2.52 kB
JavaScript
/**
* @author sunag / http://www.sunag.com.br/
*/
THREE.CameraNode = function( scope, camera ) {
THREE.TempNode.call( this, 'v3' );
this.setScope( scope || THREE.CameraNode.POSITION );
this.setCamera( camera );
};
THREE.CameraNode.POSITION = 'position';
THREE.CameraNode.DEPTH = 'depth';
THREE.CameraNode.TO_VERTEX = 'toVertex';
THREE.CameraNode.prototype = Object.create( THREE.TempNode.prototype );
THREE.CameraNode.prototype.constructor = THREE.CameraNode;
THREE.CameraNode.prototype.setCamera = function( camera ) {
this.camera = camera;
this.requestUpdate = camera !== undefined;
};
THREE.CameraNode.prototype.setScope = function( scope ) {
switch ( this.scope ) {
case THREE.CameraNode.DEPTH:
delete this.near;
delete this.far;
break;
}
this.scope = scope;
switch ( scope ) {
case THREE.CameraNode.DEPTH:
this.near = new THREE.FloatNode( camera ? camera.near : 1 );
this.far = new THREE.FloatNode( camera ? camera.far : 1200 );
break;
}
};
THREE.CameraNode.prototype.getType = function( builder ) {
switch ( this.scope ) {
case THREE.CameraNode.DEPTH:
return 'fv1';
}
return this.type;
};
THREE.CameraNode.prototype.isUnique = function( builder ) {
switch ( this.scope ) {
case THREE.CameraNode.DEPTH:
case THREE.CameraNode.TO_VERTEX:
return true;
}
return false;
};
THREE.CameraNode.prototype.isShared = function( builder ) {
switch ( this.scope ) {
case THREE.CameraNode.POSITION:
return false;
}
return true;
};
THREE.CameraNode.prototype.generate = function( builder, output ) {
var material = builder.material;
var result;
switch ( this.scope ) {
case THREE.CameraNode.POSITION:
result = 'cameraPosition';
break;
case THREE.CameraNode.DEPTH:
builder.include( 'depthcolor' );
result = 'depthcolor(' + this.near.build( builder, 'fv1' ) + ',' + this.far.build( builder, 'fv1' ) + ')';
break;
case THREE.CameraNode.TO_VERTEX:
result = 'normalize( ' + new THREE.PositionNode( THREE.PositionNode.WORLD ).build( builder, 'v3' ) + ' - cameraPosition )';
break;
}
return builder.format( result, this.getType( builder ), output );
};
THREE.CameraNode.prototype.updateAnimation = function( delta ) {
switch ( this.scope ) {
case THREE.CameraNode.DEPTH:
this.near.number = camera.near;
this.far.number = camera.far;
break;
}
};