Adobe Director Basics

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ADOBE DIRECTOR BASICS 3D basics Organization of the 3D documentation 3D Basics If you have never worked with 3D before, then just keep reading. This first chapter, 3D Basics, explains to you in simple language how Shockwave3D simulates objects in the real world. This chapter also explains where to find all the windows, tools, and objects that you will need to build a virtual 3D world. Controlling Appearance You can think of a virtual 3D world in two completely different ways: as an artist or as an engineer. As an artist, you will be concerned with what the virtual 3D world looks like. As an engineer, you will be concerned about how the 3D objects act and interact with each other. The Controlling Appearance chapter explains how to think like an artist. You will learn: How the shape of a 3D object is defined How to group objects together so that they move together as one object How to add detail and color to the surface of a 3D object How to give the illusion of light and shade By the end of this chapter, you will understand how to create a world of static objects that look almost real. Controlling Action The Controlling Action chapter teaches you to think like an engineer. To help you simulate actions and interactions, Shockwave3D provides you with many tools and devices. You can glue virtual objects together, you can join objects together with hinges, you can link objects together with invisible springs. You will learn: How to move objects around How to move the user's viewpoint like a movie camera How to select an object by clicking on it How to make virtual objects appear to be solid How to make virtual objects behave as if they had weight How to simulate clouds, smoke, flames, fireworks, and other things that are made of many tiny particles How to simulate cloth and other soft items A note about mathematics Some of this interaction can be achieved without any knowledge of the mathematics used to describe 3D objects and motions. However, if you understand a little 3D mathematics, you can create virtual worlds which are much more convincing. Understanding mathematics is the key to being a good engineer. 3D mathematics is based on the well-known operations of addition, subtraction, multiplication, and division. The mathematics themselves are not very complicated. However, to use 3D mathematics effectively, you need to have a clear image in your head of what operation means in the 3D space. The difficulty is that any notes or drawings that you make will be on 2D paper or a 2D screen. To visualize your calculations clearly, you may want to make simple models out of cardboard, wire and string. To be a good mathematician, you have to be something of an artist. Last updated 8/26/2011 3
ADOBE DIRECTOR BASICS 3D basics Introduction to 3D Several Adobe® Director® features let you create a 3D movie: A 3D cast member contains a complex internal structure that includes model resources, models, lights, and cameras. Each of these objects has its own array of properties. Director lets you convert 2D text to 3D and then work with the 3D text as you would with any other 3D cast member. You can apply behaviors to the 3D text, manipulate it with Lingo or JavaScript syntax, and view and edit it in the Shockwave® 3D window. You can also add extruded 3D text to a 3D cast member. Director comes with a library of behaviors that let you build and control a 3D environment without any knowledge of Lingo or JavaScript syntax. Although scripting is still required for complex projects, you can build simple 3D movies with behaviors alone. The 3D world The end-user of a Shockwave3D movie sees a 3D sprite on the computer screen. You need to understand what is happening within the computer to create that image in the 3D sprite. A 3D sprite is a visual representation of a Shockwave3D cast member. Each 3D cast member contains a complete 3D world. It can contain models (the objects that viewers see within the world) that are illuminated by lights and viewed by cameras. A sprite of a 3D cast member represents a specific camera’s view into the world. Imagine that the 3D cast member is a room filled with furniture with cameras pointing in from several windows. A given sprite that is using that cast member will display the view from one of those cameras, but the room itself (the 3D cast member) remains the same regardless of which view is used. Developers will often talk about a "3D world" or a "3D scene". Often this has the same meaning as "Shockwave3D cast member". The key difference between 3D cast members and other cast members is that the models within the 3D world are not independent entities—they are not sprites. They are integral parts of the 3D cast member. Your movies can use 2D and 3D cast members simultaneously. For example, a product demonstration movie might consist of a 3D cast member that represents the product and one or more 2D controls that allow users a virtual tryout of the product. Creating a world In most cases, a 3D designer will use a third-party 3D modeling application, such as Autodesk® 3ds Max®, to create a W3D file. When you import this 3D file into Director, it becomes a Shockwave3D cast member. To learn more about importing W3D files, see “External 3D Files” on page 64. You can also create an empty Shockwave3D cast member in Director itself. If you are comfortable with programming, you can then build a virtual world piece by piece, using Lingo or JavaScript syntax. To learn more about creating 3D content with Director, see “Native 3D content” on page 71. Basic 3D objects A Shockwave3D cast member contains all the information that defines a virtual world. A Shockwave3D cast member is made up of a hierarchy of objects. Last updated 8/26/2011 4
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