webvr js meetup initial commit

node_modules/three/examples/js/nodes/math/Math1Node.js

@@ -0,0 +1,79 @@
+/**
+ * @author sunag / http://www.sunag.com.br/
+ */
+
+THREE.Math1Node = function( a, method ) {
+
+	THREE.TempNode.call( this );
+
+	this.a = a;
+
+	this.method = method || THREE.Math1Node.SIN;
+
+};
+
+THREE.Math1Node.RAD = 'radians';
+THREE.Math1Node.DEG = 'degrees';
+THREE.Math1Node.EXP = 'exp';
+THREE.Math1Node.EXP2 = 'exp2';
+THREE.Math1Node.LOG = 'log';
+THREE.Math1Node.LOG2 = 'log2';
+THREE.Math1Node.SQRT = 'sqrt';
+THREE.Math1Node.INV_SQRT = 'inversesqrt';
+THREE.Math1Node.FLOOR = 'floor';
+THREE.Math1Node.CEIL = 'ceil';
+THREE.Math1Node.NORMALIZE = 'normalize';
+THREE.Math1Node.FRACT = 'fract';
+THREE.Math1Node.SAT = 'saturate';
+THREE.Math1Node.SIN = 'sin';
+THREE.Math1Node.COS = 'cos';
+THREE.Math1Node.TAN = 'tan';
+THREE.Math1Node.ASIN = 'asin';
+THREE.Math1Node.ACOS = 'acos';
+THREE.Math1Node.ARCTAN = 'atan';
+THREE.Math1Node.ABS = 'abs';
+THREE.Math1Node.SIGN = 'sign';
+THREE.Math1Node.LENGTH = 'length';
+THREE.Math1Node.NEGATE = 'negate';
+THREE.Math1Node.INVERT = 'invert';
+
+THREE.Math1Node.prototype = Object.create( THREE.TempNode.prototype );
+THREE.Math1Node.prototype.constructor = THREE.Math1Node;
+
+THREE.Math1Node.prototype.getType = function( builder ) {
+
+	switch ( this.method ) {
+		case THREE.Math1Node.LENGTH:
+			return 'fv1';
+	}
+
+	return this.a.getType( builder );
+
+};
+
+THREE.Math1Node.prototype.generate = function( builder, output ) {
+
+	var material = builder.material;
+
+	var type = this.getType( builder );
+
+	var result = this.a.build( builder, type );
+
+	switch ( this.method ) {
+
+		case THREE.Math1Node.NEGATE:
+			result = '(-' + result + ')';
+			break;
+
+		case THREE.Math1Node.INVERT:
+			result = '(1.0-' + result + ')';
+			break;
+
+		default:
+			result = this.method + '(' + result + ')';
+			break;
+	}
+
+	return builder.format( result, type, output );
+
+};