What approach should I be using to respect the alpha channel in a video I’m using as the source of a VideoMaterial? My VideoMaterial seems to show all the frames of my video at once. And doesn’t seem to respect the alpha channel either. I’m using an FLV.

The issue with showing all the frames is likely a bug in the VideoMaterial. The issue of not respecting the alpha channel is likely that you haven’t set alphaBlending = true, or alphaThreshold to some other value than zero.

Please file a bug at GitHub concerning the issue of all frames being shown at once (not clearing between draws.)

Hello,

This is my first post, my apologies if I don’t have the time to introduce myself.
I encountered this error and did a slight modification inside the Away3D source.

In the VideoMaterial class, inside the update() function, add these lines :
  var rect:Rectangle = new Rectangle(0, 0, 255, 255);
  bitmapData.fillRect(rect,0x00000000);
So it will clean the bitmapData background before redrawing. I don’t think it is a clean solution, but it is a working workaround :

The full function is :
public function update():void
  {
 
  if(_player.playing && !_player.paused)
  {
 
  bitmapData.lock();
  var rect:Rectangle = new Rectangle(0, 0, 255, 255);
  bitmapData.fillRect(rect,0x00000000);
  bitmapData.draw( _player.container, null, null, null, _clippingRect);
  updateTexture();
  bitmapData.unlock();
 
  }
 
  }

I am sorry for the pieces of code, I would have post this on github but I didn’t find how to register.

Related to github bug #54 :
https://github.com/away3d/away3d-core-fp11/issues/54

Hope it will help you to correct this issue.

Best,

Hello,

My bad about this I just notice it was dumb not to use the _clippingRect :
  public function update():void
  {
 
  if(_player.playing && !_player.paused)
  {
 
  bitmapData.lock();
  bitmapData.fillRect(_clippingRect,0x00000000);
  bitmapData.draw( _player.container, null, null, null, _clippingRect);
  updateTexture();
  bitmapData.unlock();
 
  }
 
  }

Best,

Thanks Jarzac, your solution works perfectly!

Happiness!

You are welcome