three.js/examples/js/crossfade/gui.js

var transitionParams = {
	"useTexture": true,
	"transition": 0.5,
	"transitionSpeed": 2.0,
	"texture": 5,
	"loopTexture": true,
	"animateTransition": true,
	"textureThreshold": 0.3
};

function initGUI() {
	
	var gui = new dat.GUI();

	gui.add(transitionParams, "useTexture").onChange(function(value) {
		
		transition.useTexture(value);
		
	});
	
	gui.add(transitionParams, 'loopTexture');
	
	gui.add(transitionParams, 'texture', { Perlin: 0, Squares: 1, Cells: 2, Distort: 3, Gradient: 4, Radial: 5 } ).onChange(function(value) {
		
		transition.setTexture(value);
		
	}).listen();
		
	gui.add(transitionParams, "textureThreshold", 0, 1, 0.01).onChange(function(value) {
		
		transition.setTextureThreshold(value);
		
	});

	gui.add(transitionParams, "animateTransition");
	gui.add(transitionParams, "transition", 0, 1, 0.01).listen();
	gui.add(transitionParams, "transitionSpeed", 0.5, 5, 0.01);
	
}