Away3D Forum grab a screenshot of the view

Tayyab, Member
Posted: 15 October 2012 11:15 PM Total Posts: 72

How can i grab a screenshot of the whole view or an object placed in the view?

jscamposcr, Newbie
Posted: 15 October 2012 11:57 PM Total Posts: 20 [ # 1 ]

You can get the bitmap data of the stage:

var bitmapdata:BitmapData = new BitmapData(stage.stageWidth, stage.stageHeight);

bitmapdata.draw(stage);

var bitmapDataA: BitmapData = new BitmapData(300, 250);

bitmapDataA.copyPixels(bitmapdata, new Rectangle(360, 20, 320, 240), new Point(0, 0));

var myEncoder:JPGEncoder = new JPGEncoder(90);

var byteArray:ByteArray = myEncoder.encode(bitmapDataA);

In order to make this a downloadable JPG follow this tutorial:

http://snipplr.com/view/6653/

Tayyab, Member
Posted: 16 October 2012 12:52 AM Total Posts: 72 [ # 2 ]

thank you so much , I will give it a try.

Tayyab, Member
Posted: 16 October 2012 03:15 AM Total Posts: 72 [ # 3 ]

i did this to do a quick test. but its all blank (white).

var bitmapdata:BitmapData = new BitmapData(GVC.stage.stageWidth, GVC.stage.stageHeight);
bitmapdata.draw(GVC.stage);
var bitmapDataA: BitmapData = new BitmapData(300, 250);
bitmapDataA.copyPixels(bitmapdata, new Rectangle(360, 20, 320, 240), new Point(0, 0));
/*var myEncoder:JPGEncoder = new JPGEncoder(90);
var byteArray:ByteArray = myEncoder.encode(bitmapDataA);*/
var myImage:Bitmap = new Bitmap(bitmapDataA);
GVC.stage.addChild(myImage);
return; 

thatflashdude, Newbie
Posted: 19 October 2012 06:05 AM Total Posts: 19 [ # 4 ]

Tayyab - 16 October 2012 03:15 AM
i did this to do a quick test. but its all blank (white).

i believe the reason is you can not take a bitmap screenshot of the stage because the stage3d stuff isnt on the display list at all.

instead you need to grab a screenshot using these apis

context3D.drawToBitmapData()
context3D.renderToTexture()

http://help.adobe.com/en_US/FlashPlatform/reference/actionscript/3/flash/display3D/Context3D.html#drawToBitmapData()

do a search on the away3d code for these methods and you will find an api that wraps around it..something called queuesnapshot

Ivan Moreno, Newbie
Posted: 19 October 2012 06:36 PM Total Posts: 22 [ # 5 ]

Hi Tayyab,

thatFlashDude is right, it is not working because you are drawing the wrong layer and you have to do something little extra with your renderer to avoid buffers problems/stress (Because you must have to clean your buffers every single draw/frame, and if you keep cleaning them, there is not bitmap data to catch). Use the exact same approach of jscamposcr, something like this:

var bitmapData:BitmapData = new BitmapData(yourview.width, yourview.height);
            
yourview.renderer.swapBackBuffer = false;
yourview.render();
yourview.stage3DProxy.context3D.drawToBitmapData(bitmapData);
yourview.renderer.swapBackBuffer = true;
                        
var bitmap:Bitmap = new Bitmap(bitmapData); 

Hope this is what you are looking for.

Best.

[Edit 23/10/2012] This is the original post that I wanted to share with you, but I couldn’t find it that day. I think you already asked in there. Thanks John. Away3D thread here.[/Edit]

grab a screenshot of the view Software: Away3D 4.x

Tayyab, Member Posted: 15 October 2012 11:15 PM Total Posts: 72 How can i grab a screenshot of the whole view or an object placed in the view?
jscamposcr, Newbie Posted: 15 October 2012 11:57 PM Total Posts: 20 [ # 1 ] You can get the bitmap data of the stage: `var bitmapdata:BitmapData = new BitmapData(stage.stageWidth, stage.stageHeight); bitmapdata.draw(stage); var bitmapDataA: BitmapData = new BitmapData(300, 250); bitmapDataA.copyPixels(bitmapdata, new Rectangle(360, 20, 320, 240), new Point(0, 0)); var myEncoder:JPGEncoder = new JPGEncoder(90); var byteArray:ByteArray = myEncoder.encode(bitmapDataA);` In order to make this a downloadable JPG follow this tutorial: http://snipplr.com/view/6653/
Tayyab, Member Posted: 16 October 2012 12:52 AM Total Posts: 72 [ # 2 ] thank you so much , I will give it a try.
Tayyab, Member Posted: 16 October 2012 03:15 AM Total Posts: 72 [ # 3 ] i did this to do a quick test. but its all blank (white). `var bitmapdata:BitmapData = new BitmapData(GVC.stage.stageWidth, GVC.stage.stageHeight); bitmapdata.draw(GVC.stage); var bitmapDataA: BitmapData = new BitmapData(300, 250); bitmapDataA.copyPixels(bitmapdata, new Rectangle(360, 20, 320, 240), new Point(0, 0)); /var myEncoder:JPGEncoder = new JPGEncoder(90); var byteArray:ByteArray = myEncoder.encode(bitmapDataA);/ var myImage:Bitmap = new Bitmap(bitmapDataA); GVC.stage.addChild(myImage); return;`
thatflashdude, Newbie Posted: 19 October 2012 06:05 AM Total Posts: 19 [ # 4 ] Tayyab - 16 October 2012 03:15 AM i did this to do a quick test. but its all blank (white). i believe the reason is you can not take a bitmap screenshot of the stage because the stage3d stuff isnt on the display list at all. instead you need to grab a screenshot using these apis context3D.drawToBitmapData() context3D.renderToTexture() http://help.adobe.com/en_US/FlashPlatform/reference/actionscript/3/flash/display3D/Context3D.html#drawToBitmapData() do a search on the away3d code for these methods and you will find an api that wraps around it..something called queuesnapshot
Ivan Moreno, Newbie Posted: 19 October 2012 06:36 PM Total Posts: 22 [ # 5 ] Hi Tayyab, thatFlashDude is right, it is not working because you are drawing the wrong layer and you have to do something little extra with your renderer to avoid buffers problems/stress (Because you must have to clean your buffers every single draw/frame, and if you keep cleaning them, there is not bitmap data to catch). Use the exact same approach of jscamposcr, something like this: `var bitmapData:BitmapData = new BitmapData(yourview.width, yourview.height); yourview.renderer.swapBackBuffer = false; yourview.render(); yourview.stage3DProxy.context3D.drawToBitmapData(bitmapData); yourview.renderer.swapBackBuffer = true; var bitmap:Bitmap = new Bitmap(bitmapData);` Hope this is what you are looking for. Best. [Edit 23/10/2012] This is the original post that I wanted to share with you, but I couldn’t find it that day. I think you already asked in there. Thanks John. Away3D thread here.[/Edit]

grab a screenshot of the view

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