Changing a cube’s material dynamically in Papervision3D

Glad I could help Andi!

How can i move the functin replaceMaterialByName to DisplayObject3D?

How use this method??? I think i have lastest version, but dont work??? When iam wronging

My apology and risk to look like stupid, but i cant use this method because it’s missing.
Yes, I have lastest version of GreatWhite, update with SVN with link from your instruction but it’s not there(the method). I’m so confuse. What am i trying but nothing.
If you want to help me, send your version of GreatWhite to my mail(pensionera@gyuvetch.bg) or help me other way if you can

I have been using the reflectionview recently and run couple of issues. It is standard project with cubes and reflection, but i want my reflection too look like on a Plane so
1. Can I make the plain object not to have reflection
2. Can i make it under the reflections

Thanks

Hi Jas,

the GreatWhite branch no longer exists per se. You just need the main as3 branch now.

cheers!

Seb

This is a fantastic bit of functionality, but how are old BitmapMaterials destroyed when replaced using replaceMaterialByName? Does this have to be done explicitly or is it taken care of within the Great White DisplayObject3D code? (I’m having trouble with memory usage accumulation and am not sure I’ve really got my head around destroying the bitmapData … I’ve read your other post at //www.sebleedelisle.com/?p=309 and have updated my PV3D accordingly)

Thanks Seb
Nick

@Samiaji Adisasmito yeah that shouldn’t happen, so not sure what’s happening there… wanna post the source?

Jow Seb Lee…

Never mind about my previous question…. I have replaced my papervision classes with the trunk classes and know its good to use 😀 😛 tanks for these brilliant classes 😀 😛 (reflection and material change) 😀

I want to ask you some question.
Can I paint some points in this cute in this demo?
paint some lines in this cute?

Thanks Seb..this was exactly the solution i was looking for. I can sleep now 🙂

Hi Seb

Thanks for the infos you share! I really appreciate!
The method doesn’t seem to work on multiple do3d. Only the first call is executed, any workaround? Here is my code :

package {

import flash.display.*;
import flash.display.BitmapData;
import flash.events.MouseEvent;
import flash.geom.Matrix;
import flash.geom.Point;
import flash.geom.Rectangle;
import flash.events.Event
import flash.net.URLRequest

import flash.utils.getDefinitionByName

import gs.TweenMax;
import gs.easing.Quad;

import org.papervision3d.materials.BitmapMaterial;
import org.papervision3d.materials.ColorMaterial;
import org.papervision3d.materials.utils.MaterialsList;
import org.papervision3d.objects.primitives.Cube;
import org.papervision3d.view.BasicView;

public class theCube extends MovieClip {

public function theCube(_id:int):void {

super()

addEventListener(Event.ADDED_TO_STAGE, init)

_id = id
//init()

}

public var view:BasicView = new BasicView()
private var materialsList = new MaterialsList
private var id:int
public var cubes:Array
public var theface:int
public var facelist:Array =[“back”,”top”,”front”,”bottom”]
public var currentFace:int = 1
public var materials:Array
public var replaceTwoDone:Boolean = false
public var replaceZeroDone:Boolean = false
public var replaceOneDone:Boolean = false
private var targetRotation:Number = 0;

private function init(e:Event):void {

removeEventListener(Event.ADDED_TO_STAGE, init)

view = new BasicView(stage.stageWidth,stage.stageHeight)

view.opaqueBackground = 0x000000;
view.camera.focus = 100;
view.camera.zoom = 10;
view.camera.ortho = false;

addChild(view)

materialsList = new MaterialsList()
materialsList.addMaterial(createBitmapMaterialFromAsset(“front”, 0, 240, true), “front”);
materialsList.addMaterial(createBitmapMaterialFromAsset(“back”, 0, 240), “back”);
materialsList.addMaterial(createBitmapMaterialFromAsset(“top”, 0, 240), “top”);
materialsList.addMaterial(createBitmapMaterialFromAsset(“bottom”, 0, 240, true), “bottom”);
materialsList.addMaterial(new ColorMaterial(0xff0f00), “right”);
materialsList.addMaterial(new ColorMaterial(0xff00cc), “left”);

var bmpMat:BitmapMaterial = createBitmapMaterialFromAsset(“new”, 0, 240);
var bmpMat2:BitmapMaterial = createBitmapMaterialFromAsset(“new”, 0, 240);
var bmpMat3:BitmapMaterial = createBitmapMaterialFromAsset(“new”, 0, 240, true);
var bmpMat4:BitmapMaterial = createBitmapMaterialFromAsset(“new”, 0, 240, true);

materials = [bmpMat, bmpMat2, bmpMat3, bmpMat4]

cubes = []

for(var i:int=0; i<3; ++i) {
var cube:Cube = new Cube(materialsList, 240, 240, 240);
cube.x = (250*i)-240
cube.z = 240;
view.scene.addChild(cube);
cubes.push(cube) as Cube
}

view.startRendering();

addEventListener(MouseEvent.CLICK, mouseDownHandler);

}

private function createBitmapMaterialFromAsset(asset:String, sliceX:Number, sliceWidth:Number, isFlipped:Boolean = false):BitmapMaterial
{
var _asset:Class = getDefinitionByName(asset) as Class

trace (getDefinitionByName(asset) as Class)

var bitmap:Bitmap = new Bitmap(new _asset)
var bitmapData:BitmapData = new BitmapData(240, 300, false, 0xcc0000);
if(isFlipped)
{
var sliceMatrix:Matrix = new Matrix();
sliceMatrix.translate(-240, 0);
sliceMatrix.rotate(Math.PI);
sliceMatrix.translate(sliceX, 300);
bitmapData.draw(bitmap.bitmapData, sliceMatrix);

}
else
{
bitmapData.copyPixels(bitmap.bitmapData, new Rectangle(0, 0, 240, 300), new Point());
}
var material:BitmapMaterial = new BitmapMaterial(bitmapData, true);

return material;
}

private function mouseDownHandler(event:MouseEvent):void
{

if(currentFace == 4) {

currentFace = 0
}

//trace (facelist[currentFace])

theface = currentFace

for(var i:int=0; i<cubes.length; ++i) {
replaceMat(currentFace, i)

}

rotate()

//I suppose the method had not had enough time, so I delayed call. It doesn't work anyway.

//replaceMatZero(currentFace)

//replaceMatOne(currentFace)

//replaceMatTwo(currentFace)

//addEventListener(Event.ENTER_FRAME, checkChange)

currentFace++;

}

private function replaceMat(_cf:int, _id:int):void {

Cube(cubes[_id]).replaceMaterialByName(materials[_cf], facelist[_cf]);

trace (typeof(cubes[id]))

}

private function replaceMatZero(_cf:int):void {

cubes[0].replaceMaterialByName(materials[_cf], facelist[_cf]);

replaceZeroDone = true

}

private function replaceMatOne(_cf:int):void {

cubes[1].replaceMaterialByName(materials[_cf], facelist[_cf]);

replaceOneDone = true

}

private function replaceMatTwo(_cf:int):void {

cubes[2].replaceMaterialByName(materials[_cf], facelist[_cf])

replaceTwoDone = true

}

private function checkChange(e:Event):void {

if(replaceZeroDone) {

replaceMatOne(theface)

if(replaceOneDone) {

replaceMatTwo(theface)

if(replaceTwoDone) {

replaceZeroDone = false
replaceOneDone = false
replaceTwoDone = false

removeEventListener(Event.ENTER_FRAME, checkChange)

rotate()
}

}
}

}

private function rotate():void {

targetRotation -= 450
cubes.forEach(cubes_forEachCallback);
}

private function cubes_forEachCallback(cube:Cube, index:int, array:Array):void
{
index++;
var time:Number = .3 * index;
TweenMax.to(cube, time, {rotationX:targetRotation, ease:Quad.easeInOut});
}

}
}

Thanks in advance

Netto

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