three
Version:
JavaScript 3D library
115 lines (61 loc) • 1.79 kB
JavaScript
/**
* @author sunag / http://www.sunag.com.br/
*/
import { TempNode } from '../core/TempNode.js';
import { NodeLib } from '../core/NodeLib.js';
function NormalNode( scope ) {
TempNode.call( this, 'v3' );
this.scope = scope || NormalNode.LOCAL;
}
NormalNode.LOCAL = 'local';
NormalNode.WORLD = 'world';
NormalNode.VIEW = 'view';
NormalNode.prototype = Object.create( TempNode.prototype );
NormalNode.prototype.constructor = NormalNode;
NormalNode.prototype.nodeType = "Normal";
NormalNode.prototype.isShared = function ( builder ) {
switch ( this.scope ) {
case NormalNode.WORLD:
return true;
}
return false;
};
NormalNode.prototype.generate = function ( builder, output ) {
var result;
switch ( this.scope ) {
case NormalNode.LOCAL:
builder.requires.normal = true;
result = 'normal';
break;
case NormalNode.WORLD:
builder.requires.worldNormal = true;
result = builder.isShader( 'vertex' ) ? '( modelMatrix * vec4( objectNormal, 0.0 ) ).xyz' : 'vWNormal';
break;
case NormalNode.VIEW:
result = 'vNormal';
break;
}
return builder.format( result, this.getType( builder ), output );
};
NormalNode.prototype.copy = function ( source ) {
TempNode.prototype.copy.call( this, source );
this.scope = source.scope;
};
NormalNode.prototype.toJSON = function ( meta ) {
var data = this.getJSONNode( meta );
if ( ! data ) {
data = this.createJSONNode( meta );
data.scope = this.scope;
}
return data;
};
NodeLib.addKeyword( 'normal', function () {
return new NormalNode();
} );
NodeLib.addKeyword( 'worldNormal', function () {
return new NormalNode( NormalNode.WORLD );
} );
NodeLib.addKeyword( 'viewNormal', function () {
return new NormalNode( NormalNode.VIEW );
} );
export { NormalNode };