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Using primitives in Papervision 3D

Page 2

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Open Flash and create a new Flash File (Actionscript 3.0).

Select frame one in the timeline and open the Actions Panel (Window - Actions or F9).

First we need to import the required classes.

This first set of classes imports all of the components for creating a 3D Scene.

import org.papervision3d.cameras.Camera3D;
import org.papervision3d.render.BasicRenderEngine;
import org.papervision3d.scenes.Scene3D;
import org.papervision3d.view.Viewport3D;

The second set of imported classes are for creating primitives and materials which cover the 3D shapes.

import org.papervision3d.objects.primitives.*;    
import org.papervision3d.materials.*;
import org.papervision3d.materials.special.*;
import org.papervision3d.materials.utils.*;

Next we create all of the necessary objects to create and render the scene.

var viewport:Viewport3D=new Viewport3D(stage.stageWidth,stage.stageHeight);
var scene:Scene3D = new Scene3D();
var camera:Camera3D = new Camera3D();
var renderer:BasicRenderEngine = new BasicRenderEngine();
stage.scaleMode="showAll";

Now we create the sphere object. The parameters specify the material to be used (null), the radius and number of segments that make up the sphere - height and width. We then place the sphere in the top left corner by altering its x and y coordinates.

var ball:Sphere=new Sphere(null,100,10,10);
ball.x=-500;
ball.y=300;

Finally we add the viewport and sphere object to the stage ands scene and render the image.

addChild(viewport);
scene.addChild(ball);
renderer.renderScene(scene, camera, viewport);


Here's the result - note that the sphere appears slightly squished because of the perspective view. You can download the FLA file here:

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Next we'll add another primitive, the cone...

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