User Guide

ADOBE ATMOSPHERE

User Guide

Working with subworlds

A subworld is a world that is loaded into the parent world. For example, an avatar is

considered a subworld. A subworld has the same functionality of a parent world, with the

exception of users being able to navigate inside of it. In addition, subworlds can be moved

around (or move themselves around) dynamically, whereas the parent world is static.

Subworlds have their own scripting engine, which is in a separate name space from the

scripting engine of the parent world.

The SubWorld module provides methods and properties for working with subworlds. For

example, the following code adds a subworld that is set to be invisible but made active for

collisions:

ghost = SubWorld("ghost.3da").add();

ghost.visible = false;

ghost.collide = 2; // Other objects collide with the ghost

For more information on the SubWorld module, see the Atmosphere JavaScript API

documentation.

Working with Viewpoint content

Viewpoint content is a 3D scene saved in MTX format. An MTX ﬁle contains parameters

describing the scene’s 3D objects and the 3D scene itself. You can use MTX format to

import objects (including animations) that you created in a third-party application into

Atmosphere.

The ViewpointScene module provides methods and properties for interacting with

Viewpoint content in a world. You can use this module to play a named animation (called

a time element), to enumerate animations and instances (geometric components with

associated transforms), and to get and set Viewpoint properties. For example, the

following code attaches a script to the MetaObj in Atmosphere Builder, scales down the

model by a factor of two, and starts the time element that controls walking:

// Scale down the model (i.e. geometric instance) called "BodyModel" by a factor of 2

this.scene.getInstance("BodyModel" ).scale = [0.5, 0.5, 0.5];

// Activate the animation called "Walking"

timeElem = this.scene.getTimeElem("Walking");

timeElem.start();

For more information on the ViewpointScene module, see the Atmosphere JavaScript API

documentation. For more information about MTX format and the Viewpoint API, see the

Viewpoint Web site at www.viewpoint.com.

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