Exploring-javafx-3d

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Exploring JavaFX 3D

Jim WeaverJava Technology AmbassadorOracle Corporation

@[email protected]

2Copyright © 2012, Oracle and/or its affiliates. All rights reserved. Insert Information Protection Policy Classification from Slide 16

ProgramAgenda

Introduction to JavaFX 3D

Nuts and Bolts of JavaFX 3D

More Fun with JavaFX 3D

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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 Oracle’s products remains at the sole discretion of Oracle.

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Introduction to JavaFX 3D

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Start Here: http://javafxcommunity.com

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Download JDK 8 Early Access Release

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Visit the 3D Features for JavaFX 8 Wikihttps://wikis.oracle.com/display/OpenJDK/3D+Features

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Visit Here: http://fxexperience.com

Tip: This site is authored by Oracle JavaFX Engineers

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“JavaFX 3D gives you the ability to use 3D geometry, cameras, and lights in JavaFX.”

Jasper PottsJavaFX Engineer, Oracle Corporation

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JavaFX 3D Application Example

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http://fxexperience.com/2013/02/javafx-3d-early-access-available/

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JavaFX 3D Use Cases

■ Inventory and Process Visualization

■ Scientific and Engineering Visualization

■ 3D Charting

■ Mechanical CAD and CAE

■ Medical Imaging

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More JavaFX 3D Use Cases

■ Product Marketing

■ Architectural Design and Walkthroughs

■ Advanced User Experience

■ Mission Planning

■ Training

■ Entertainment

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Nuts and Bolts of JavaFX 3D

(Shapes, Materials, Textures, Lights, Cameras)

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Mesh Geometry (3D Shapes)

■ Predefined shapes■ Box

■ Cylinder

■ Sphere

■ User-defined shapes■ Using TriangleMesh / MeshView

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https://wikis.oracle.com/display/OpenJDK/SphereAndBox.java

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Creating Primitive Shapes and Materials

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Rotating the 3D ShapesTip: Use lambda expressions as shown here to simplify event handling

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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

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https://wikis.oracle.com/display/OpenJDK/3D+Features

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UV Mapping Textures to Shapes

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Tip: A texture is a 2D image to be mapped on a 3D surface

Source: http://en.wikipedia.org/wiki/File:UVMapping.png

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Placing a Texture on a Sphere

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Placing a Texture on a Sphere

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Placing a Texture on a Cylinder

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radius height

Note that the texture is mapped three times to the cylinder

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Specifying Divisions on a Cylinder

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radius height divisions

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Placing an Image on a Box

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Note that the texture is mapped six times to the box

Tip: A Box doesn’t have to be a cube. It may have different width, height and depth args

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Using TriangleMesh / MeshView

■ If the same texture on all sides of the cube isn’t desired, a user-defined shape may be created using TriangleMesh and MeshView

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UV Mapping on a Cube

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Understanding TriangleMesh

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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)

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Using TriangleMesh Points

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Tip: The API for points, texCoords, and faces is currently being modified, primarily to hold this data in different structures.

(For example)

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Using TriangleMesh Texture Coords

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(For example)

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Using TriangleMesh Faces

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0, 2, 1 are points[] indices

10, 5, 9 are texCoords[] indices

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Using TriangleMesh Smoothing Groups

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These are faces[] indices

(and putting all the pieces together of our user-defined shape)

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Real-World Example of Mesh Geometry

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3D Lights

■ Lights are nodes in the scene graph■ PointLight

■ AmbientLight

■ Default light provided if no active lights

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https://wikis.oracle.com/display/OpenJDK/3D+Features

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Lights, Camera, Action!

Tip: The camera is also a node in the scene graph, so it is moveable

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More Fun with JavaFX 3D

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Using a SubScene

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■ 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

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Creating a SubScene

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Behavior of this SubScene

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3D Node Picking

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■ 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

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3D Node Picking

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Platonic Solids

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Tip: Sample code for loading a 3D format will be made available. Third-party loaders are available as well.

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Example 3D / multi-touch app: ZenGuitar3D

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Showing the Picker (TouchEvent)

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Rotating Instrument Picker with Scroll Gesture

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Playing Strings (TouchEvent / TouchPoint)

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Switching Modes (TouchPoint#belongsTo)

GuitarString3D instance

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Setting up to Rotate on Three Axes

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Using Scroll Gesture for X/Y Rotate

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Using Rotate Gesture for Z Rotate

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Using Zoom Gesture for Scaling

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Using Timeline to Transform to Home Position

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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

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Questions?

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Exploring JavaFX 3D

Jim WeaverJava Technology AmbassadorOracle Corporation

@[email protected]

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