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Exploring-javafx-3d

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Jay Thakkar
Jay Thakkar

This document provides an overview of JavaFX 3D capabilities including: creating 3D shapes using primitive shapes, meshes, and user-defined geometry; applying materials and textures to shapes; using lights and cameras in the 3D scene; picking 3D nodes; and an example ZenGuitar3D application that demonstrates multi-touch interaction with 3D objects. The document outlines the nuts and bolts of working with 3D in JavaFX including meshes, materials, textures, lights and cameras and provides examples and resources for learning more.

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1 Exploring JavaFX 3D Jim Weaver Java Technology Ambassador Oracle Corporation @JavaFXpert james.weaver@oracle.com
2 Copyright 息 2012, Oracle and/or its affiliates. All rights reserved. Insert Information Protection Policy Classification from 際際滷 16 Program Agenda Introduction to JavaFX 3D Nuts and Bolts of JavaFX 3D More Fun with JavaFX 3D
3 3 Please note The following is intended to outline our general product direction. It is intended for information purposes only, and may not be incorporated into any contract. It is not a commitment to deliver any material, code, or functionality, and should not be relied upon in making purchasing decisions. The development, release, and timing of any features or functionality described for Oracles products remains at the sole discretion of Oracle.
4 Introduction to JavaFX 3D
5 5 Start Here: http://javafxcommunity.com
6 6 Download JDK 8 Early Access Release
7 7 Visit the 3D Features for JavaFX 8 Wiki https://wikis.oracle.com/display/OpenJDK/3D+Features
8 8 Visit Here: http://fxexperience.com Tip: This site is authored by Oracle JavaFX Engineers
9 JavaFX 3D gives you the ability to use 3D geometry, cameras, and lights in JavaFX.
10 JavaFX 3D Application Example 10 http://fxexperience.com/2013/02/javafx-3d-early-access-available/
11 JavaFX 3D Use Cases Inventory and Process Visualization Scientific and Engineering Visualization 3D Charting Mechanical CAD and CAE Medical Imaging 11
12 More JavaFX 3D Use Cases Product Marketing Architectural Design and Walkthroughs Advanced User Experience Mission Planning Training Entertainment 12
13 Nuts and Bolts of JavaFX 3D (Shapes, Materials, Textures, Lights, Cameras)
14 Mesh Geometry (3D Shapes) Predefined shapes Box Cylinder Sphere User-defined shapes Using TriangleMesh / MeshView 14 https://wikis.oracle.com/display/OpenJDK/SphereAndBox.java
15 15 Creating Primitive Shapes and Materials
16 16 Rotating the 3D Shapes Tip: Use lambda expressions as shown here to simplify event handling
17 3D Materials and Textures PhongMaterial has these properties Ambient color Diffuse color, diffuse map Specular color, specular map Specular power Bump map Self-illumination map 17 https://wikis.oracle.com/display/OpenJDK/3D+Features
18 UV Mapping Textures to Shapes 18 Tip: A texture is a 2D image to be mapped on a 3D surface Source: http://en.wikipedia.org/wiki/File:UVMapping.png
19 Placing a Texture on a Sphere 19
20 Placing a Texture on a Sphere 20
21 Placing a Texture on a Cylinder 21 radius height Note that the texture is mapped three times to the cylinder
22 Specifying Divisions on a Cylinder 22 radius height divisions
23 Placing an Image on a Box 23 Note that the texture is mapped six times to the box Tip: A Box doesnt have to be a cube. It may have different width, height and depth args
24 Using TriangleMesh / MeshView If the same texture on all sides of the cube isnt desired, a user-defined shape may be created using TriangleMesh and MeshView 24
25 UV Mapping on a Cube 25
26 Understanding TriangleMesh 26 8 points 12 faces 14 texCoords 12 faces Image 0, 0 0, 1 1, 0 1, 1 Tip: Best practice for texture map dimensions is powers of two (e.g. 1024x512)
27 Using TriangleMesh Points 27 Tip: The API for points, texCoords, and faces is currently being modified, primarily to hold this data in different structures. (For example)
28 Using TriangleMesh Texture Coords 28 (For example)
29 Using TriangleMesh Faces 29 0, 2, 1 are points[] indices 10, 5, 9 are texCoords[] indices
30 Using TriangleMesh Smoothing Groups 30 These are faces[] indices (and putting all the pieces together of our user-defined shape)
31 31 Real-World Example of Mesh Geometry
32 3D Lights Lights are nodes in the scene graph PointLight AmbientLight Default light provided if no active lights 32 https://wikis.oracle.com/display/OpenJDK/3D+Features
33 33 Lights, Camera, Action! Tip: The camera is also a node in the scene graph, so it is moveable
34 More Fun with JavaFX 3D
35 Using a SubScene 35 SubScene is a special node for scene separation Renders part of the scene with a different camera Some use cases are: Overlay for UI controls Underlay for background "Heads-up" display
36 Creating a SubScene 36
37 Behavior of this SubScene 37
38 3D Node Picking 38 Some events (e.g. MouseEvent and TouchEvent) have a getPickResult() method PickResult contains info such as Node picked 3D point picked on node Distance of point from camera Face # of node picked
39 3D Node Picking 39
40 Platonic Solids 40 Tip: Sample code for loading a 3D format will be made available. Third-party loaders are available as well.
41 Example 3D / multi-touch app: ZenGuitar3D
42 42 Showing the Picker (TouchEvent)
43 43 Rotating Instrument Picker with Scroll Gesture
44 44 Playing Strings (TouchEvent / TouchPoint)
45 45 Switching Modes (TouchPoint#belongsTo)
46 46 Setting up to Rotate on Three Axes
47 47 Using Scroll Gesture for X/Y Rotate
48 48 Using Rotate Gesture for Z Rotate
49 49 Using Zoom Gesture for Scaling
50 50 Using Timeline to Transform to Home Position
51 51 ZenGuitar3D Uses the JFugue5 Library An open-source Java API for programming music without the complexities of MIDI Developed by David Koelle Available at http://JFugue.org
52 Questions?
53 Exploring JavaFX 3D Jim Weaver Java Technology Ambassador Oracle Corporation @JavaFXpert james.weaver@oracle.com
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