webvr js meetup initial commit

node_modules/three/examples/js/nodes/accessors/CameraNode.js

@@ -0,0 +1,149 @@
+/**
+ * @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.fDepthColor = new THREE.FunctionNode( [
+"float depthColor( float mNear, float mFar ) {",
+"	#ifdef USE_LOGDEPTHBUF_EXT",
+"		float depth = gl_FragDepthEXT / gl_FragCoord.w;",
+"	#else",
+"		float depth = gl_FragCoord.z / gl_FragCoord.w;",
+"	#endif",
+"	return 1.0 - smoothstep( mNear, mFar, depth );",
+"}"
+].join( "\n" ) );
+
+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:
+
+			var func = THREE.CameraNode.fDepthColor;
+
+			builder.include( func );
+
+			result = func.name + '(' + 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.updateFrame = function( delta ) {
+
+	switch ( this.scope ) {
+
+		case THREE.CameraNode.DEPTH:
+
+			this.near.number = camera.near;
+			this.far.number = camera.far;
+
+			break;
+
+	}
+
+};