ProceduralMaterial.js

(function() { // BEGIN LOCAL_SCOPE

var entities = [];

function getPos(x, y) {
    return Vec3.sum(MyAvatar.position, Vec3.sum(Vec3.multiply(x, Quat.getRight(MyAvatar.orientation)),
                                       Vec3.sum(Vec3.multiply(y, Quat.getUp(MyAvatar.orientation)),
                                                Vec3.multiply(3, Quat.getForward(MyAvatar.orientation)))));
}

entities.push(Entities.addEntity({
	type: "Material",
	materialURL: "materialData",
	priority: 1,
	parentMaterialName: "0",
	position: getPos(-0.5, 1),
	materialData: JSON.stringify({
		materials: {
			"model": "hifi_shader_simple",
			"procedural": {
			  	"version": 2,
			  	"fragmentShaderURL": "https://gist.githubusercontent.com/SamGondelman/0f0bc47a1113bfe0dee0996bd43acc79/raw/009f804ea9f033e96c9a7ea4b768193b77ba587e/proceduralMaterialTestNormal.fs"
			}
		}
	})
}));

entities.push(Entities.addEntity({
	type: "Sphere",
	position: getPos(-1, 0),
	dimensions: 0.5,
	rotation: MyAvatar.orientation
}));

entities.push(Entities.addEntity({
	type: "Model",
	modelURL: "qrc:////meshes/mannequin/mannequin.baked.fbx",
	position: getPos(0, 0),
	rotation: MyAvatar.orientation
}));

entities.push(Entities.addEntity({
	type: "Model",
	modelURL: "qrc:////meshes/tablet-with-home-button-small-bezel.fbx",
	position: getPos(1, 0),
	rotation: Quat.multiply(MyAvatar.orientation, Quat.fromPitchYawRollDegrees(0, 180, 0))
}));

var index = 0;
var parent = [entities[entities.length - 3], entities[entities.length - 2], entities[entities.length - 1], MyAvatar.SELF_ID, Uuid.NULL ];
var parentMaterialName = ["0", "0", "[0, 9]", "all", ""];
Controller.keyPressEvent.connect(function(event) {
	if (event.text === 'u') {
		for (var i = 0; i < 1; i++) {
			Entities.editEntity(entities[i], {
				parentID: parent[index],
				parentMaterialName: parentMaterialName[index]
			});
		}
		index = (index + 1) % parent.length;
	}
})

Script.scriptEnding.connect(function() {
	for (var i = 0; i < entities.length; i++) {
		Entities.deleteEntity(entities[i]);
	}
});

}()); // END LOCAL_SCOPE